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IM536-D
SP-
125 PLUS March, 2001
For use with machine Code Numbers 10260, 10481,10685,10689,10690,10740
Safety Depends on You
Lincoln arc welding and cutting
equipment is designed and built
with safety in mind. However, your
overall safety can be increased by
proper installation ... and thought-
ful operation on your part. DO
NOT INSTALL, OPERATE OR
REPAIR THIS EQUIPMENT
WITHOUT READING THIS
MANUAL AND THE SAFETY
PRECAUTIONS CONTAINED
THROUGHOUT. And, most
importantly, think before you act
and be careful.
Date of Purchase:
Serial Number:
Code Number:
Model:
Where Purchased:
OPERATOR’S MANUAL
ISO 9001
ANSI RAB
QMS
Designed and Manufactured Under a
Quality Program Certified by
ABS Quality Evaluations, Inc.
to ISO 9001 Requirements.
CERTIFICATE NUMBER: 30273
Copyright © 2001 Lincoln Global Inc.
� World's Leader in Welding and Cutting Products �
� Sales and Service through Subsidiaries and Distributors Worldwide �
Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com
i i
SAFETY
WARNING
CALIFORNIA PROPOSITION 65 WARNINGS
The engine exhaust from this product contains
Diesel engine exhaust and some of its constituents
chemicals known to the State of California to cause
are known to the State of California to cause can-
cancer, birth defects, or other reproductive harm.
cer, birth defects, and other reproductive harm.
The Above For Gasoline Engines
The Above For Diesel Engines
ARC WELDING CAN BE HAZARDOUS. PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH.
KEEP CHILDREN AWAY. PACEMAKER WEARERS SHOULD CONSULT WITH THEIR DOCTOR BEFORE OPERATING.
Read and understand the following safety highlights. For additional safety information, it is strongly recommended that you
purchase a copy of “Safety in Welding & Cutting - ANSI Standard Z49.1� from the American Welding Society, P.O. Box
351040, Miami, Florida 33135 or CSA Standard W117.2-1974. A Free copy of “Arc Welding Safety� booklet E205 is available
from the Lincoln Electric Company, 22801 St. Clair Avenue, Cleveland, Ohio 44117-1199.
BE SURE THAT ALL INSTALLATION, OPERATION, MAINTENANCE AND REPAIR PROCEDURES ARE
PERFORMED ONLY BY QUALIFIED INDIVIDUALS.
FOR ENGINE 1.h. To avoid scalding, do not remove the
radiator pressure cap when the engine is
powered equipment. hot.
1.a. Turn the engine off before troubleshooting and maintenance
work unless the maintenance work requires it to be running.
____________________________________________________
1.b. Operate engines in open, well-ventilated
areas or vent the engine exhaust fumes
outdoors.
ELECTRIC AND
MAGNETIC FIELDS
____________________________________________________
may be dangerous
1.c. Do not add the fuel near an open flame
welding arc or when the engine is running.
Stop the engine and allow it to cool before 2.a. Electric current flowing through any conductor causes
refueling to prevent spilled fuel from vaporiz- localized Electric and Magnetic Fields (EMF). Welding
ing on contact with hot engine parts and current creates EMF fields around welding cables and
igniting. Do not spill fuel when filling tank. If welding machines
fuel is spilled, wipe it up and do not start
engine until fumes have been eliminated. 2.b. EMF fields may interfere with some pacemakers, and
____________________________________________________ welders having a pacemaker should consult their physician
1.d. Keep all equipment safety guards, covers and devices in before welding.
position and in good repair.Keep hands, hair, clothing and
tools away from V-belts, gears, fans and all other moving 2.c. Exposure to EMF fields in welding may have other health
parts when starting, operating or repairing equipment. effects which are now not known.
____________________________________________________
2.d. All welders should use the following procedures in order to
1.e. In some cases it may be necessary to remove safety
minimize exposure to EMF fields from the welding circuit:
guards to perform required maintenance. Remove
guards only when necessary and replace them when the
2.d.1. Route the electrode and work cables together - Secure
maintenance requiring their removal is complete.
them with tape when possible.
Always use the greatest care when working near moving
parts.
2.d.2. Never coil the electrode lead around your body.
___________________________________________________
1.f. Do not put your hands near the engine fan.
Do not attempt to override the governor or 2.d.3. Do not place your body between the electrode and
idler by pushing on the throttle control rods work cables. If the electrode cable is on your right
while the engine is running. side, the work cable should also be on your right side.
2.d.4. Connect the work cable to the workpiece as close as
possible to the area being welded.
___________________________________________________
1.g. To prevent accidentally starting gasoline engines while 2.d.5. Do not work next to welding power source.
turning the engine or welding generator during maintenance
work, disconnect the spark plug wires, distributor cap or
magneto wire as appropriate. Mar �95
SP-125 PLUS
ii ii
SAFETY
ARC RAYS can burn.
ELECTRIC SHOCK can
4.a. Use a shield with the proper filter and cover
kill. plates to protect your eyes from sparks and
3.a. The electrode and work (or ground) circuits
the rays of the arc when welding or observing
are electrically “hot� when the welder is on. open arc welding. Headshield and filter lens
Do not touch these “hot� parts with your bare should conform to ANSI Z87. I standards.
skin or wet clothing. Wear dry, hole-free
gloves to insulate hands. 4.b. Use suitable clothing made from durable flame-resistant
material to protect your skin and that of your helpers from
3.b. Insulate yourself from work and ground using dry insulation. the arc rays.
Make certain the insulation is large enough to cover your full
area of physical contact with work and ground. 4.c. Protect other nearby personnel with suitable, non-flammable
screening and/or warn them not to watch the arc nor expose
In addition to the normal safety precautions, if welding themselves to the arc rays or to hot spatter or metal.
must be performed under electrically hazardous
conditions (in damp locations or while wearing wet
FUMES AND GASES
clothing; on metal structures such as floors, gratings or
scaffolds; when in cramped positions such as sitting,
can be dangerous.
kneeling or lying, if there is a high risk of unavoidable or
accidental contact with the workpiece or ground) use 5.a. Welding may produce fumes and gases
the following equipment: hazardous to health. Avoid breathing these
� Semiautomatic DC Constant Voltage (Wire) Welder. fumes and gases.When welding, keep
� DC Manual (Stick) Welder. your head out of the fume. Use enough
� AC Welder with Reduced Voltage Control. ventilation and/or exhaust at the arc to keep
fumes and gases away from the breathing zone. When
3.c. In semiautomatic or automatic wire welding, the electrode, welding with electrodes which require special
electrode reel, welding head, nozzle or semiautomatic ventilation such as stainless or hard facing (see
welding gun are also electrically “hot�. instructions on container or MSDS) or on lead or
cadmium plated steel and other metals or coatings
3.d. Always be sure the work cable makes a good electrical which produce highly toxic fumes, keep exposure as
connection with the metal being welded. The connection low as possible and below Threshold Limit Values (TLV)
should be as close as possible to the area being welded. using local exhaust or mechanical ventilation. In
confined spaces or in some circumstances, outdoors, a
3.e. Ground the work or metal to be welded to a good electrical respirator may be required. Additional precautions are
(earth) ground. also required when welding on galvanized steel.
5.b. Do not weld in locations near chlorinated hydrocarbon vapors
3.f. Maintain the electrode holder, work clamp, welding cable and
coming from degreasing, cleaning or spraying operations.
welding machine in good, safe operating condition. Replace
The heat and rays of the arc can react with solvent vapors to
damaged insulation.
form phosgene, a highly toxic gas, and other irritating
products.
3.g. Never dip the electrode in water for cooling.
5.c. Shielding gases used for arc welding can displace air and
3.h. Never simultaneously touch electrically “hot� parts of
cause injury or death. Always use enough ventilation,
electrode holders connected to two welders because voltage
especially in confined areas, to insure breathing air is safe.
between the two can be the total of the open circuit voltage
of both welders.
5.d. Read and understand the manufacturer’s instructions for this
equipment and the consumables to be used, including the
3.i. When working above floor level, use a safety belt to protect
material safety data sheet (MSDS) and follow your
yourself from a fall should you get a shock.
employer’s safety practices. MSDS forms are available from
your welding distributor or from the manufacturer.
3.j. Also see Items 6.c. and 8.
5.e. Also see item 1.b.
Mar �95
SP-125 PLUS
iii iii
SAFETY
WELDING SPARKS can CYLINDER may explode
cause fire or explosion. if damaged.
6.a. Remove fire hazards from the welding area.
7.a. Use only compressed gas cylinders
If this is not possible, cover them to prevent
containing the correct shielding gas for the
the welding sparks from starting a fire.
process used and properly operating
Remember that welding sparks and hot
regulators designed for the gas and
materials from welding can easily go through small cracks
pressure used. All hoses, fittings, etc. should be suitable for
and openings to adjacent areas. Avoid welding near
the application and maintained in good condition.
hydraulic lines. Have a fire extinguisher readily available.
7.b. Always keep cylinders in an upright position securely
6.b. Where compressed gases are to be used at the job site,
chained to an undercarriage or fixed support.
special precautions should be used to prevent hazardous
situations. Refer to “Safety in Welding and Cutting� (ANSI
7.c. Cylinders should be located:
Standard Z49.1) and the operating information for the
� Away from areas where they may be struck or subjected to
equipment being used.
physical damage.
6.c. When not welding, make certain no part of the electrode
� A safe distance from arc welding or cutting operations and
circuit is touching the work or ground. Accidental contact
any other source of heat, sparks, or flame.
can cause overheating and create a fire hazard.
7.d. Never allow the electrode, electrode holder or any other
6.d. Do not heat, cut or weld tanks, drums or containers until the
electrically “hot� parts to touch a cylinder.
proper steps have been taken to insure that such procedures
will not cause flammable or toxic vapors from substances
7.e. Keep your head and face away from the cylinder valve outlet
inside. They can cause an explosion even though they have
when opening the cylinder valve.
been “cleaned�. For information, purchase “Recommended
Safe Practices for the Preparation for Welding and Cutting of
7.f. Valve protection caps should always be in place and hand
Containers and Piping That Have Held Hazardous
tight except when the cylinder is in use or connected for
Substances�, AWS F4.1 from the American Welding Society
use.
(see address above).
7.g. Read and follow the instructions on compressed gas
6.e. Vent hollow castings or containers before heating, cutting or
cylinders, associated equipment, and CGA publication P-l,
welding. They may explode.
“Precautions for Safe Handling of Compressed Gases in
Cylinders,� available from the Compressed Gas Association
6.f. Sparks and spatter are thrown from the welding arc. Wear oil
1235 Jefferson Davis Highway, Arlington, VA 22202.
free protective garments such as leather gloves, heavy shirt,
cuffless trousers, high shoes and a cap over your hair. Wear
ear plugs when welding out of position or in confined places.
FOR ELECTRICALLY
Always wear safety glasses with side shields when in a
powered equipment.
welding area.
6.g. Connect the work cable to the work as close to the welding
8.a. Turn off input power using the disconnect
area as practical. Work cables connected to the building
switch at the fuse box before working on
framework or other locations away from the welding area
the equipment.
increase the possibility of the welding current passing
through lifting chains, crane cables or other alternate cir-
8.b. Install equipment in accordance with the U.S. National
cuits. This can create fire hazards or overheat lifting chains
Electrical Code, all local codes and the manufacturer’s
or cables until they fail.
recommendations.
6.h. Also see item 1.c.
8.c. Ground the equipment in accordance with the U.S. National
Electrical Code and the manufacturer’s recommendations.
Mar �95
SP-125 PLUS
iv iv
SAFETY
zones où l’on pique le laitier.
PRÉCAUTIONS DE SÛRETÉ
6. Eloigner les matériaux inflammables ou les recouvrir afin de
Pour votre propre protection lire et observer toutes les instructions
prévenir tout risque d’incendie dû aux étincelles.
et les précautions de sûreté specifiques qui parraissent dans ce
manuel aussi bien que les précautions de sûreté générales suiv-
7. Quand on ne soude pas, poser la pince à une endroit isolé de
antes:
la masse. Un court-circuit accidental peut provoquer un
échauffement et un risque d’incendie.
Sûreté Pour Soudage A L’Arc
1. Protegez-vous contre la secousse électrique:
8. S’assurer que la masse est connectée le plus prés possible
de la zone de travail qu’il est pratique de le faire. Si on place
a. Les circuits à l’électrode et à la piéce sont sous tension
la masse sur la charpente de la construction ou d’autres
quand la machine à souder est en marche. Eviter toujours
endroits éloignés de la zone de travail, on augmente le risque
tout contact entre les parties sous tension et la peau nue
de voir passer le courant de soudage par les chaines de lev-
ou les vétements mouillés. Porter des gants secs et sans
age, câbles de grue, ou autres circuits. Cela peut provoquer
trous pour isoler les mains.
des risques d’incendie ou d’echauffement des chaines et des
b. Faire trés attention de bien s’isoler de la masse quand on
câbles jusqu’� ce qu’ils se rompent.
soude dans des endroits humides, ou sur un plancher
metallique ou des grilles metalliques, principalement dans
9. Assurer une ventilation suffisante dans la zone de soudage.
les positions assis ou couché pour lesquelles une grande
Ceci est particuliérement important pour le soudage de tôles
partie du corps peut être en contact avec la masse.
galvanisées plombées, ou cadmiées ou tout autre métal qui
c. Maintenir le porte-électrode, la pince de masse, le câble
produit des fumeés toxiques.
de soudage et la machine à souder en bon et sûr état
defonctionnement.
10. Ne pas souder en présence de vapeurs de chlore provenant
d.Ne jamais plonger le porte-électrode dans l’eau pour le
d’opérations de dégraissage, nettoyage ou pistolage. La
refroidir.
chaleur ou les rayons de l’arc peuvent réagir avec les vapeurs
e. Ne jamais toucher simultanément les parties sous tension
du solvant pour produire du phosgéne (gas fortement toxique)
des porte-électrodes connectés à deux machines à souder
ou autres produits irritants.
parce que la tension entre les deux pinces peut être le
total de la tension à vide des deux machines.
11. Pour obtenir de plus amples renseignements sur la sûreté,
f. Si on utilise la machine à souder comme une source de
voir le code “Code for safety in welding and cutting� CSA
courant pour soudage semi-automatique, ces precautions
Standard W 117.2-1974.
pour le porte-électrode s’applicuent aussi au pistolet de
soudage.
2. Dans le cas de travail au dessus du niveau du sol, se protéger
contre les chutes dans le cas ou on recoit un choc. Ne jamais
PRÉCAUTIONS DE SÛRETÉ POUR
enrouler le câble-électrode autour de n’importe quelle partie
LES MACHINES À SOUDER À
du corps.
TRANSFORMATEUR ET À
3. Un coup d’arc peut être plus sévère qu’un coup de soliel,
REDRESSEUR
donc:
a. Utiliser un bon masque avec un verre filtrant approprié
ainsi qu’un verre blanc afin de se protéger les yeux du ray- 1. Relier à la terre le chassis du poste conformement au code de
onnement de l’arc et des projections quand on soude ou l’électricité et aux recommendations du fabricant. Le dispositif
quand on regarde l’arc. de montage ou la piece à souder doit être branché à une
b. Porter des vêtements convenables afin de protéger la bonne mise à la terre.
peau de soudeur et des aides contre le rayonnement de
l‘arc. 2. Autant que possible, I’installation et l’entretien du poste seront
c. Protéger l’autre personnel travaillant à proximité au effectués par un électricien qualifié.
soudage à l’aide d’écrans appropriés et non-inflammables.
3. Avant de faires des travaux à l’interieur de poste, la debranch-
4. Des gouttes de laitier en fusion sont émises de l’arc de er à l’interrupteur à la boite de fusibles.
soudage. Se protéger avec des vêtements de protection libres
de l’huile, tels que les gants en cuir, chemise épaisse, pan- 4. Garder tous les couvercles et dispositifs de sûreté à leur
talons sans revers, et chaussures montantes. place.
5. Toujours porter des lunettes de sécurité dans la zone de
soudage. Utiliser des lunettes avec écrans lateraux dans les
Mar. �93
SP-125 PLUS
v v
for selecting a QUALITY product by Lincoln Electric. We want you
Thank You to take pride in operating this Lincoln Electric Company product
•â?¢â?? as much pride as we have in bringing this product to you!
Please Examine Carton and Equipment For Damage Immediately
When this equipment is shipped, title passes to the purchaser upon receipt by the carrier. Consequently, Claims
for material damaged in shipment must be made by the purchaser against the transportation company at the
time the shipment is received.
Please record your equipment identification information below for future reference. This information can be
found on your machine nameplate.
Model Name & Number _____________________________________
Code & Serial Number _____________________________________
Date of Purchase _____________________________________
Whenever you request replacement parts for or information on this equipment always supply the information
you have recorded above.
Read this Operators Manual completely before attempting to use this equipment. Save this manual and keep it
handy for quick reference. Pay particular attention to the safety instructions we have provided for your protection.
The level of seriousness to be applied to each is explained below:
WARNING
This statement appears where the information must be followed exactly to avoid serious personal injury or
loss of life.
CAUTION
This statement appears where the information must be followed to avoid minor personal injury or damage to
this equipment.
SP-125 PLUS v
vi
TABLE OF CONTENTS
Page
Installation .......................................................................................................Section A
Technical Specifications ........................................................................................A-1
Identify and Locate Components ...........................................................................A-2
Select Suitable Location ........................................................................................A-3
Output Connections ...............................................................................................A-3
Input Connections..................................................................................................A-5
Code Requirements ..............................................................................................A-6
Operation .........................................................................................................Section B
Safety Precautions ................................................................................................B-1
General Description ...............................................................................................B-2
Design Features and Advantages...................................................................B-2
Welding Capability ..........................................................................................B-2
Limitations .......................................................................................................B-2
Controls and Settings......................................................................................B-2
Welding Operations ...............................................................................................B-3
Overload Protection ...............................................................................................B-7
Learning to Weld....................................................................................................B-8
Application Chart .................................................................................................B-19
Accessories .....................................................................................................Section C
Accessories ...........................................................................................................C-1
Replacement Parts ................................................................................................C-2
Maintenance ....................................................................................................Section D
Safety Precautions ................................................................................................D-1
Items Requiring No Maintenance ..........................................................................D-1
Routine and Periodic Maintenance........................................................................D-1
Gun and Cable Maintenance.................................................................................D-2
Configuration of Components in Wire Feeding System.........................................D-2
Component Replacement Procedures ..................................................................D-3
Troubleshooting ..............................................................................................Section E
Safety Precautions.................................................................................................E-1
How To Use Troubleshooting Guide......................................................................E-1
Troubleshooting Guide ..........................................................................................E-2
Wiring Diagrams ..............................................................................................Section F
SP-125 Plus Wiring Diagram .................................................................................F-1
Parts Lists....................................................................................P263 Series & P202-E
SP-125 PLUS
vii
SP-125 PLUS
A-1
INSTALLATION
TECHNICAL SPECIFICATIONS � SP-125 Plus
INPUT � SINGLE PHASE ONLY
Standard Voltage/Frequency Input Current
115V/60Hz 20 Amps - Rated Output
115V/60Hz 25 Amps - Maximum Output
115V/60Hz 15 Amps - CSA Rated output
RATED OUTPUT
Duty Cycle Amps Volts at Rated Amperes
20% Duty Cycle � Rated DC Output 90 18
20% Duty Cycle - CSA Rated Output 63 20
OUTPUT
Welding Current Range (Continuous) Maximum Open Circuit Voltage Auxiliary Power
Rated DC Output: 0 - 90 amps 28 N/A
CSA Rated DC Output: 0 - 63 amps
Useable Amperage Range 25 � 125 Amps
RECOMMENDED INPUT CABLE AND FUSE SIZES
Fuse or
Output Mode Input Voltage Breaker Size Input Amps Extension Cord
RATED 115V/60Hz 20 Amp 20 Three Conductor
#14 AWG
(2.1 mm2) or Larger
for up to
MAXIMUM 115V/60Hz 25 Amp 25 25 feet (7.6m)
Three Conductor
#12 AWG
CSA 115V/60Hz 15 Amp 15 (3.3 mm2) or Larger
for up to
50 feet (15.2 m)
PHYSICAL DIMENSIONS
Height Width Depth Weight
12.0 in 9.75 in 16.5 in 54 Ibs
305 mm 248 mm 419 mm 24.3 kg
.
SP-125 PLUS
A-2 INSTALLATION
FIGURE A.1
Read entire installation section before starting
installation.
1
SAFETY PRECAUTIONS 2
WARNING
WELD
ING
25-125AMP RA
NGE
ELECTRIC SHOCK can kill.
� Only qualified personnel should perform
this installation.
� Only personnel that have read and under-
stood the SP-125 Plus Operating Manual
should install and operate this equipment.
� Machine must be plugged into a receptacle 4
which is grounded per any national, local
or other applicable electrical codes.
3
� The SP-125 Plus power switch is to be in
the OFF (“O�) position when installing
work cable and gun and when connecting
power cord to input power.
6
5
IDENTIFY AND LOCATE
COMPONENTS
7
If you have not already done so, unpack the SP-125
Plus from its carton and remove all packing material
around the SP-125 Plus. Remove the following loose
items from the carton (see Figure A.1):
1. SP-125 Plus
2. Gun and cable assembly(1)
3. Literature and miscellaneous including:
a) This operating manual
b) A contact tip for .030� (0.8 mm) diameter wire.
4. 10 ft (3.0 m) work cable.
5. Work clamp.
6. Sample Spool of L-56 .025 MIG Wire.
7. Adjustable mixed-Gas Regulator & Hose.
For available options and accessories refer to the
accessories section later in this manual.
As shipped from the factory, the SP-125 Plus gun is
1)
ready to feed .023 or .025 (0.6 mm) wire.
SP-125 PLUS
A-3
INSTALLATION
SELECT SUITABLE LOCATION Work Clamp Installation
Attach the work clamp per the following:
Locate the welder in a dry location where there is free
circulation of clean air into the louvers in the back and
1. Unplug the machine or turn the power switch to the
out the front of the unit. A location that minimizes the
“OFF� position.
amount of smoke and dirt drawn into the rear louvers
reduces the chance of dirt accumulation that can block
2. Insert the work cable terminal lug with the larger
air passages and cause overheating.
hole through the strain relief hole in the work clamp
as shown in Figure A-3.
STACKING
3. Fasten securely with the bolt and nut provided.
SP-125 Plus� cannot be stacked.
FIGURE A.3
TILTING
Strain Relief Hole
Each machine must be placed on a secure, level sur-
Work Cable
face, either directly or on a recommended undercar- Nut & Bolt
riage. The machine may topple over if this procedure
is not followed.
OUTPUT CONNECTIONS
Work Clamp
Refer to Figure A.2.
1. Work Cable Access Hole.
Work Cable Installation
2. Gun Cable and Control Lead Access Hole.
Refer to Figure A.2.
3. Connector Block.
4. Gun Trigger Lead Connectors. 1. Open the wire feed section door on the right side of
the SP-125 Plus.
5. Positive (+) and negative (�) output terminals.
6. Wire Feed Gearbox and Gun Connector Block 2. Pass the end of the work cable that has the termi-
nal lug with the smaller hole through the Work
7. Cable Clamp
Cable Access Hole (1) in the case front.
8. Thumbscrew - Secures gun and cable assembly
9. Optional Spot/Stitch Timer Kit see Accessories.
FIGURE A.2
5 9
4
WELDING AMP RANGE
25-125
SP-125 Plus
+
8
-
1 6
3 7
2
SP-125 PLUS
A-4 INSTALLATION
3. Route the cable under and around the back of the 3. Insert the connector on the gun conductor cable
Wire Feed Gearbox (6). through the Gun Cable Access Hole (2) in the SP-
125 Plus case front. Make sure the connector is all
4. For GMAW Only: Refer to Figure A.2. As deliv- the way in the metal connector block to obtain
ered, the SP-125 Plus is wired for positive polarity. proper gas flow. Rotate the connector so control
This is the appropriate configuration for the Gas leads are on the underside and tighten the
Metal Arc Welding (GMAW) process. To complete Thumbscrew (8) in the connector block.
installation, use the provided wing nut to connect
the work cable’s terminal lug to the negative (�) 4. Connect the gun trigger control lead terminals to
output terminal (5) located above the Wire Feed the two insulated 1/4" (6,4 mm) tab connector
Gearbox (6). Make sure that both wing nuts are bushings located above the “Gun Trigger
tight. Connection� decal in the wire feed section (4).
Either lead can go to either connector. Form the
5. For Innershield Only: Refer to Figure A.4. To wire leads so that they are as close as possible to the
for negative polarity, connect the short cable inside panel.
attached to the connector block (1) to the negative
(�) output terminal (2) and the work cable (3) to the
positive (+) terminal (4).
CAUTION
FIGURE A.4
If the gun trigger switch being used is other than
3
4 that supplied with the SP-125 Plus, the switch
must be a normally open, momentary switch. The
terminals of the switch must be insulated from the
welding circuit. Malfunction of the SP-125 Plus will
2 result if this switch shorts to the SP-125 Plus
welding output circuit or is common to any electri-
cal circuit other than the SP-125 Plus trigger
1 circuit.
GAS CONNECTION
Refer to Figure A.5
When using the GMAW process, a cylinder of shield-
ing gas, must be obtained. For more information about
selecting gas cylinders for use with the SP-125 Plus,
refer to the ACCESSORIES section.
GUN INSTALLATION
As shipped from the factory, the SP-125 Plus gun is
ready to feed 0.023 - 0.025� (0,6 mm) wire. If 0.030�
WARNING
(0,8 mm) wire is to be used install the 0.030� (0.8 mm)
contact tip. Refer to the MAINTENANCE section for
contact tip installation details. CYLINDER may explode if dam-
aged. Keep cylinder upright and
Connecting Gun Cable to the SP-125 Plus chained to support
� Keep cylinder away from areas
1. Refer to Figure A.2. Unplug the machine or turn
where it may be damaged.
power switch to the off “O� position.
� Never lift welder with cylinder
attached.
2. Pass the insulated terminals of the gun trigger con-
trol leads, one at a time, through the Gun Cable � Never allow welding electrode to
and Control Lead Access Slot (2) in the case front. touch cylinder.
The leads are to be routed under the Wire Feed
� Keep cylinder away from welding
Gearbox (6) and through the Cable Hanger (7) on
or other live electrical circuits.
the inner panel.
SP-125 PLUS
A-5
INSTALLATION
3. Attach the flow regulator to the cylinder valve and
WARNING tighten the union nut securely with a wrench. The
flow regulator for carbon dioxide must have a plas-
BUILDUP OF SHIELDING GAS may
tic washer seated in the fitting that attaches to the
harm health or kill.
cylinder to prevent leakage. Refer to K1800-1 in
� Shut off shielding gas supply the accessories section.
when not in use.
4. Refer to Figure A.6. Attach one end of inlet gas
� SEE AMERICAN NATIONAL
hose to the outlet fitting of the flow regulator and
STANDARD Z-49.1, “SAFETY IN
tighten the union nut securely with a wrench.
WELDING AND CUTTING� PUB-
Connect the other end to the SP-125 Plus Gas
LISHED BY THE AMERICAN
Solenoid Inlet Fitting (5/8-18 female threads � for
WELDING SOCIETY.
CGA � 032 fitting). Make certain the gas hose is
not kinked or twisted.
1. Chain the cylinder to a wall or other stationary sup-
port to prevent the cylinder from falling over.
Insulate the cylinder from the work circuit and earth
INPUT CONNECTIONS
ground.
Refer to Figure A.6.
FIGURE A.5
The SP-125 Plus has two input connections, the
power input cable, and the Gas Solenoid Inlet Fitting.
Cylinder Valve
Flow Regulator
Both are located on the rear of the machine.
FIGURE A.6
Gas Hose
Gas Solenoid
Inlet Fitting
2. With the cylinder securely installed, remove the
cylinder cap. Stand to one side away from the out- Power
let and open the cylinder valve very slightly for an Input
Cable
instant. This blows away any dust or dirt which may
have accumulated in the valve outlet.
WARNING
BE SURE TO KEEP YOUR FACE AWAY FROM THE
VALVE OUTLET WHEN “CRACKING� THE VALVE.
Never stand directly in front of or behind the flow
regulator when opening the cylinder valve. Always
stand to one side.
SP-125 PLUS
A-6 INSTALLATION
CODE REQUIREMENTS FOR INPUT Requirements For CSA Rated Output
CONNECTIONS
A line cord with a 15 amp, 125 volt, three-prong plug
(NEMA Type 5-15P) is factory installed. Connect this
plug to a mating grounded receptacle which is con-
WARNING nected to a 15 amp branch circuit with a nominal volt-
age rating of 115 volts to 125 volts, 60 hertz, AC only.
This welding machine must be connected to
power source in accordance with applicable elec-
With this installation, the SP-125 Plus can be used at
trical codes.
an output of 63 amps, 20 volts, 20% duty cycle.
The United States National Electrical Code (Article
630-B, 1990 Edition) provides standards for amperage
handling capability of supply conductors based on
duty cycle of the welding source.
If there is any question about the installation meeting
applicable electrical code requirements, consult a
qualified electrician.
Requirements For Rated Output
A power cord with a 15 amp, 125 volt, three prong
plug (NEMA Type 5-15P) is factory installed on the
SP-125 Plus. Connect this plug to a mating grounded
receptacle which is connected to a 20 amp branch cir-
cuit with a nominal voltage rating of 115 to 125 volts,
60 Hertz, AC only.
The rated output with this installation is 90 amps, 18
Volts, 20% duty cycle (2 minutes of every 10 minutes
used for welding).
CAUTION
Do not connect the SP-125 Plus to an input power
supply with a rated voltage that is greater than 125
volts.
Do not remove the power cord ground prong.
Requirements For Maximum Output
In order to utilize the maximum output capability of the
machine, a branch circuit capable of 25 amps at 115
to 125 volts, 60 Hertz is required. This generally
applies when welding steel that is equal to or greater
than 12 gauge, 0.105� (2.5 mm) in thickness.
SP-125 PLUS
B-1
OPERATION
Read entire Operation section before
operating the SP-125 Plus.
WARNING
ELECTRIC SHOCK can kill.
� Do not touch electrically live
parts or electrode with skin or
wet clothing. Insulate yourself
from work and ground.
� Always wear dry insulating
gloves.
FUMES AND GASES can be
dangerous.
� Keep your head out of fumes.
� Use ventilation or exhaust to
remove fumes from breathing
zone.
WELDING SPARKS can
cause fire or explosion.
� Keep flammable material away.
� Do not weld on closed contain-
ers.
ARC RAYS can burn eyes
and skin.
� Wear eye, ear and body protec-
tion.
Observe all safety information throughout
this manual.
SP-125 PLUS
B-2 OPERATION
G Reversible, dual groove drive roll. Drive roll will
GENERAL DESCRIPTION
feed .023-.035� (0.6- 0.9 mm) diameter wire.
The SP-125 Plus is a complete semiautomatic con- G Accommodates both 8� (200 mm) diameter and 4�
stant voltage DC arc welding machine. Included is a (100 mm) diameter spools of wire.
solid state controlled, single phase constant voltage
G No external shielding gas is required when used
transformer/ rectifier power source and a wire feeder
with Lincoln Innershield .035� (0,9 mm) NR®-211-
for feeding solid steel electrode and cored electrode.
MP electrode.
The SP-125 Plus is ideally suited for individuals hav- G Easy to change polarity.
ing access to 115 volt AC input power, and wanting
G Accepts optional Spot/Stitch Timer Kit.
the ease of use, quality and dependability of both gas
metal arc welding or GMAW (also known as MIG
WELDING CAPABILITY
welding) and the Innershield electrode process (self
shielded flux cored or FCAW). The SP-125 Plus is a
rugged and reliable machine that has been designed The SP-125 Plus, as shipped, is rated at 90 amps, 18
for dependable service and long life. volts, at 20% duty cycle on a ten minute basis. It is
capable of higher duty cycles at lower output currents.
RECOMMENDED PROCESSES
LIMITATIONS
The SP-125 Plus can be used for welding mild steel
using the GMAW, single pass, process which requires Arc Gouging cannot be performed with the SP-125
a supply of shielding gas or it can be used for the self Plus. The SP-125 Plus is not recommended for pipe
shielded, Innershield electrode process (FCAW). The thawing.
SP-125 Plus is configured for use with the GMAW
(MIG) process as delivered from the factory.
CONTROLS AND SETTINGS
OPERATIONAL FEATURES AND Refer to Figures B.1a & B.1b.
CONTROLS
1. Power ON/OFF Switch �
The SP-125 Plus has the following controls as stan- When the power is on the
dard: Power ON/OFF Switch, Voltage Control, Wire ON
fan motor will run and air will
Speed Control, and a Circuit Breaker. be exhausted out the louvers
in the front of the machine.
The welding output and wire
DESIGN FEATURES AND feeder remain off until the
OFF
ADVANTAGES gun trigger is pressed.
2. Voltage Control � A contin-
G Operates on 115 volt input � no special wiring
uous control that gives full
required. ON
range adjustment of power
G Solid state output control. ARC VOLTS
source output voltage.
Voltage can be adjusted
G “Cold electrode� until gun trigger is pressed for an
while welding.
added measure of safety.
ARC VOLTS
G Overload protection � incorporates both a thermo-
3. Wire Speed Control �
stat and a circuit breaker. Controls the wire feed speed
G Quality wire drive with electronic overload protec- from 50 � 400 in /min (1.3 � WIRE SPEED
10 m/min). The control can
tion.
be preset on the dial to the
G Easy-to-set continuous range controls for precise
setting specified on the SP-
setting of arc voltage and wire speed.
125 Plus Application Chart
G Continuous voltage control. located on the inside of the
wire feed section door. Wire
G “Quick Release� idle roll pressure arm is easily
speed is not affected when
adjusted.
changes are made in the
voltage control.
SP-125 PLUS SP-125 PLUS
B-3
OPERATION
WELDING OPERATIONS
2
1
SEQUENCE OF OPERATION
WELDING AMP RANGE
25-125
Wire Loading
3
Refer to Figure B.2 AND B3.
SP-125 Plus
The machine power switch should be turned to the
OFF (“O�) position before working inside the wire feed
enclosure.
FIGURE B.1a
The machine is shipped from the factory ready to feed
4� (100 mm) diameter spools. A 4" (100 mm) diameter
Refer to Figure B.1b
spool is mounted directly on the 5/8" (16 mm) diame-
ter spindle that has a built-in adjustable friction brake
4. Circuit Breaker � Protects machine from damage if
to prevent overrun of the spool and excess slack in
maximum output is exceeded. Button will extend
the wire. The wing nut at the end of the shaft is used
out when tripped (Manual reset).
to adjust the tension on the wire spool (See B.3 on the
following page).
5. Optional K695-2 Spot/Stitch Controls (see ACCES-
SORIES section) - If present, replaces Blank Panel
To use 8" (200 mm) diameter spools, the 2" (51 mm)
Assembly located on the center panel inside the
diameter M15445 spindle must be used. Remove the
case door:
spacer and wing nut at the end of the shaft. Insert
spindle as shown in figure B.2. Reattach spacer and
Mode Switch - Selects between Spot, Stitch, or
wing nut.
Seam (normal welding) mode. Spot mode welds for
an adjustable length of time (set by Time Control;
Note:When loading and removing the 8� Spools make
see below) and then stops, whenever the gun trig-
sure that the wing nut (inside the wire spool spindle
ger is depressed and held. Stitch mode cycles
hub) is turned 90° from the wire spool spindle locking
between welding and not welding for an adjustable
tab. If the wing nut is positioned in line with the locking
length of time (also set by Time Control) while the
tab, the tab cannot be depressed to load or unload the
gun trigger is depressed. In Seam mode the
wire spool.
machine will weld continuously while the gun trig-
ger is depressed. Releasing the gun trigger in any
Make certain the start end of the wire, which may pro-
of the three modes will interrupt welding immedi-
trude through the side of the spool, does not contact
ately.
any metallic case parts.
Time Control - In Spot mode, controls spot mode
ON time between approximately .25 and 4.0 sec-
FIGURE B.2
onds. In Stitch mode, controls stitch mode ON time
and OFF time simultaneously between .25 and 4.0
seconds each. This control is deactivated while in Optional
Seam mode. Wire Spool Spindle
Locking Tab
FIGURE B.1b 8� Wire Spool
4
5
Be sure that this stud engages
the hole in the wire spool.
+
-
To wire drive
Wire Spool must be pushed all the way on the spindle so that the
spindle’s tab will hold it in place. The Wire Spool must rotate clock-
wise when wire is dereeled.
SP-125 PLUS
B-4 OPERATION
FIGURE B.3 FIGURE B.4
Wire Spindle Shaft
4" Wire Spool
2
1
4
Wing Nut
5
and Spacer
To wire drive
3 The Wire Drive Feed Roll can
accommodate two wire sizes by
flipping the wire drive feed roll
Note: The brake should be adjusted with a spool of over. The sizes are stenciled on
wire installed. When properly adjusted it should the drive roll.
move freely but not coast.
Friction Brake Adjustments
6. The idle roll pressure adjustment wing nut is nor-
1. With wire spool installed, check free movement
mally set for mid-position on the pressure arm
and coast of the spool.
threads. If feeding problems occur because the
wire is flattened excessively, turn the pressure
2. To tighten the brake turn the wing nut clockwise in
adjustment counter-clockwise to reduce distortion
1/4 turn increments until coasting stops.
of the wire. Slightly less pressure may be required
when using 0.023 � 0.025� (0,6 mm) wire. If the
3. To loosen the brake turn the wing nut counter-
drive roll slips while feeding wire, the pressure
clockwise in 1/4 turn increments until the wire
should be increased until the wire feeds properly.
spool moves freely without coasting.
WARNING
Wire Threading
When inching the welding wire, the drive rolls, the
Refer to Figure B.4
gun connector block and the gun contact tip are
always energized relative to work and ground and
1. Release the Spring Loaded Pressure Arm (1)
remain energized several seconds after the gun
rotate the Idle Roll Arm (2) away from the Wire
trigger is released.
Feed Drive Roll (3). Ensure that the visible, sten-
ciled size on the drive roll matches the wire size
7. Refer to Figure B.5. Remove gas nozzle and con-
being used.
tact tip from end of gun.
2. Carefully detach the end of the wire from the
8. Turn the SP-125 Plus ON (“I�).
spool. To prevent the spool from unwinding, do
not release the wire until after step 5.
9. Straighten the gun cable assembly.
3. Cut the bent portion of wire off and straighten the
10. Depress the gun trigger switch and feed welding
first 4� (100 mm).
wire through the gun and cable. (Point gun away
from yourself and others while feeding wire.)
4. Thread the wire through the In-going guide tube
Release gun trigger after wire appears at end of
(4), over the drive roll (3), and into the out-going
gun.
guide tube (5).
11. Replace contact tip and gas nozzle.
5. Close the idle roll arm and latch the spring loaded
pressure arm (2) in place (now you may release
12. Refer to Figure B-6. Cut the wire off 1/4� � 3/8�
the welding wire).
(6 � 10 mm) from the end of the tip. The SP-125
Plus is now ready to weld.
SP-125 PLUS
B-5
OPERATION
FIGURE B.5 FIGURE B.6
Gun Handle
Contact Tip
Gas Diffuser
Contact Tip Wire Electrode
Gas Nozzle 3/8" � 1/2" Electrical Stickout
Shielding Gas
4. Check that the polarity is correct for the welding
When using the GMAW process, a cylinder of shield-
wire being used and that the gas supply, if
ing gas, must be obtained. Refer to the ACCES-
required, is turned on.
SORIES section for more information about selecting
gas cylinders for use with the SP-125 Plus.
5. When using Innershield electrode, remove the gas
nozzle and install the gasless nozzle. This will
improve visibility of the arc and protect the gas dif-
1. For CO2, open the cylinder very slowly. For argon-
fuser from weld spatter. Refer to the MAINTE-
mixed gas, open cylinder valve slowly a fraction of
NANCE section for details on nozzle replacement.
a turn. When the cylinder pressure gauge pointer
stops moving, open the valve fully.
6. Refer to Figure B.7. Connect work clamp to metal
to be welded. Work clamp must make good elec-
2. If using a regulator with an adjustable flow meter,
trical contact to the workpiece. The workpiece
close the gun trigger and adjust the flow to give 15
must also be grounded as stated in “Arc Welding
� 20 cubic ft per hour (CFH) (7 � 10 I/min) [use 20
Safety Precautions� in the beginning of this manu-
-� 25 CFH (10 � 12 I/min) when welding out of
al.
position or in a drafty location for CO2]. For argon
mixed gas, trigger to release gas pressure, and
7. Position gun over joint. End of wire may be lightly
turn off the adjust the flow to give 25 � 30 CFH
touching the work.
(12 � 14 I/min).
8. Lower welding helmet, close gun trigger, and
3. Keep the cylinder valve closed, except when using
begin welding. Hold the gun so the contact tip to
the SP-125 Plus. When finished welding:
work distance is about 3/8 inch (10 mm).
a) Close the cylinder valve to stop gas flow.
b) Depress the gun trigger briefly to release the
pressure in the gas hose. FIGURE B.7
c) Turn off the SP-125 Plus.
Making A Weld
1. See Recommended Processes And Equipment
section for selection of welding wire and shielding
SP-125 Plus
gas and for range of metal thicknesses that can be
welded. GUN CABLE
2. See the Application Chart on the inside of wire
feed section door for information on setting the
SP-125 Plus controls.
WORKPIECE
3. Set the Voltage (“Vâ€?) and Wire Speed (“olo’â??) con-
ARC
trols to the settings suggested for the welding wire
and base metal thickness being used. WORK CLAMP
SP-125 PLUS
B-6 OPERATION
CAUTION
9. To stop welding, release the gun trigger and then
pull the gun away from the work after the arc goes It is important when changing between welding
out. with steel wire and aluminum to exchange feeding
components due to the lubricant applied to steel
10. When no more welding is to be done, close valve wire. Failure to do so may result in contaminated
on gas cylinder (if used), momentarily operate gun welds when welding aluminum.
trigger to release gas pressure, and turn off the ------------------------------------------------------------------------
SP-125 Plus. TABLE B.1 � SP-125 Plus Welding Procedures
Cleaning Tip And Nozzle Welding Shielding
Clean the contact tip and nozzle to avoid arc bridging Process Wire Gas 16 ga 14 ga 12 ga 10 ga
between the nozzle and contact tip which can result in MIG DC+ .035 Dia 100% Argon D-4.5 H-6.5 H-6.5 J-7.5
a shorted nozzle, poor welds and an overheated gun. 4043 Aluminum
Wire
Hint: Anti-stick spray or gel, available from a welding
MIG DC+ .035 Dia 100% Argon C-5.5 D-6 G-8.5 H-9.5
supply distributor, may reduce buildup and aid in spat-
5356 Aluminum
ter removal. Wire
MIG DC+ .030 Dia 98% Argon/ D-3 F-4 J-5 J-6.5
308L Stainless 2% Oxygen
PROCESS GUIDELINES Steel Wire
The SP-125 Plus can be used for welding mild steel
using the GMAW, single pass, process which requires
CHANGING MACHINE OVER TO
a supply of shielding gas or it can be used for the self
FEED OTHER WIRE SIZES
shielded, Innershield electrode process.
The SP-125 Plus is shipped from the factory ready to
The recommended gas and electrode for GMAW is
feed 0.023-0.025� (0,6 mm) diameter wire. To operate
welding grade mixed CO2 and Argon (75-80%) gas
the SP-125 Plus with other sizes of wire, it is neces-
and 0.025� (0 6 mm) diameter Lincoln L-56 mild-steel
sary to change the contact tip and change the drive
welding wire [supplied on 121/2 Ib (6 kg) spools]. For
roll over to other sizes. Refer to Changing the Contact
14 gauge (2,0 mm) and thinner CO2, or blended gas is
Tip and Changing the Drive Roll, in the MAINTE-
acceptable. A mixed gas consisting of 75 to 80%
NANCE section, for specific information on these pro-
Argon and 20 to 25% CO2 is recommended for weld-
cedures.
ing on heavier gauge [12 gauge (2,5 mm) for example]
steel.
The recommended electrode for the self-shielded
WELDING WITH FCAW (Innershield)
process is 0.035� (0,9 mm) diameter Lincoln
Innershield NR-211-MP on 10 Ib (4,5 kg) spools. This
Welding with Innershield requires an Innershield
electrode can be used for all position welding of 20
Welding Kit. A gasless nozzle is provided in the
gauge through 5/16� (1,0 � 8,0 mm) thick steel [multi-
Innershield Welding Kit. When using Innershield elec-
ple passes are required for 1/4� and 5/16� (6,0 and 8,0
trode, installing the gasless nozzle will improve visibili-
mm)].
ty of the arc and protect the gas diffuser from weld
spatter. Additionally included is a gun cable liner to
permit proper feeding of .035� (0,9 mm) Innershield
WARNING
wire. Refer to the ACCESSORIES section for details
on obtaining this kit.
Use of the GMAW process with the SP-125 Plus on
thicker materials than recommended may result in
poor welds. The welds may “look� good, but may
just be “sitting� on top of the plate. This is called
“cold casting� and will result in weld failure.
The SP-125 Plus is suitable for .035" Aluminum wire
and .030" stainless wire. Refer to Table B.1 for
Recommended Procedure Settings. Aluminum wire
requires K663-1 Aluminum Welding kit. See ACCES-
SORIES section.
SP-125 PLUS
B-7
OPERATION
OVERLOAD PROTECTION
Output Overload
The SP-125 Plus is equipped with a circuit breaker
which protects the machine from potential damage
from excessive output current. The circuit breaker but-
ton will extend out when tripped. The circuit breaker
must be manually reset.
Thermal Protection
The SP-125 Plus duty cycle is exceeded a thermostat
will shut off the output until the machine cools to a nor-
mal operating temperature. This is an automatic func-
tion and is self resetting.
Wire Feed Overload Protection
If the SP-125 Plus has an automatic electronic protec-
tion circuit to protect the wire feed motor. If excessive
motor overload occurs (due to excessive feeding
force, jammed drive rolls, or shorted motor leads) the
circuit will shut down the wire feed motor and the
welding power output.
The wire feed shut-down circuit will reset automatically
when the gun trigger is released. However shut-down
will reoccur if the overload situation is not corrected.
SP-125 PLUS
B-8 LEARNING TO WELD
LEARNING TO WELD WARNING
No one can learn to weld simply by reading about it. Fumes and slag generated from
Skill comes only with practice. The following pages will Innershield type electrodes recom-
help the inexperienced operator to understand weld- mended for use with this welding
ing and develop this skill. For more detailed informa- machine can be toxic.
tion, order a copy of “New Lessons in Arc Welding�
listed at the end of this manual. � Avoid contact with eyes and skin.
� Do not take internally.
THE ARC-WELDING CIRCUIT
� Keep out of reach of children.
The operator’s knowledge of arc welding must go
beyond the arc itself. The operator must know how to � Follow all safety precautions
control the arc, and this requires a knowledge of the found in this operating manual.
welding circuit and the equipment that provides the
electric current used in the arc. Figure B.7 illustrates
the welding circuit for a typical welding machine. The The gun and cable assembly is held by the operator
circuit begins where the gun cable is attached to the who guides the automatically fed wire along the joint,
welding machine. Current flows through the gun cable, maintaining a contact tip to work distance of about 3/8
gun, and contact tip, to the wire and across the arc. to 1/2 inch (10 � 12 mm). This is called electrical stick-
On the work side of the arc, current flows through the out. This electrical stickout (ESO) must be properly
base metal to the work cable and back to the welding maintained by the operator. The electric arc is made in
machine. This circuit must be complete for the current the gap between the work and the tip end of a small
to flow. diameter wire. When the power source is properly set,
the arc gap is maintained automatically.
This machine’s welding circuit has a voltage output of
33 volts DC maximum. This voltage is quite low and is Arc welding is a manual skill requiring a steady hand,
only present when the gun trigger is depressed. good physical condition, and good eyesight. The oper-
ator controls the welding arc, and therefore, the quality
To weld, the work clamp must be tightly connected to of the weld made.
clean base metal. Remove paint, rust, dirt or oil as
necessary and connect the work clamp as close as
possible to the area you wish to weld. This helps pre-
vent current from going through an unwanted path. THE SELF-SHIELDED FCAW WELDING
Avoid allowing the welding circuit to pass through ARC
hinges, bearings, electronic components, or similar
devices that can be damaged. See Figure B.8. Always Figure B.9 illustrates the action taking place in the self
disconnect electrical devices before welding upon shielded FCAW (Innershield) welding arc. It closely
them. resembles what is actually seen while welding.
FIGURE B.9
FIGURE B.8
Electronic Components
Burning of core materials
Cored Wire inside wire electrode
results in shield of gas.
Protective Slag
Arc Stream
Weld Metal
Hinges Bearings
SP-125 PLUS
B-9
LEARNING TO WELD
The “arc stream� is seen in the middle of the picture. THE GMAW (MIG) WELDING ARC
This is the electric arc created by the electric current
flowing through the space between the end of the wire Figure B.10 illustrates the GMAW (MIG) welding arc.
electrode and the base metal. The temperature of this Solid wire does not contain fluxes or ingredients to
arc is about 6000°F, which is more than enough to form its own shielding and no slag forms to protect the
melt metal. The arc is very bright, as well as hot, and molten weld metal. For this reason, a continuous even
cannot be looked at with the naked eye without risking flow of shielding gas is needed to protect the molten
painful injury. The very dark lens, specifically weld metal from atmospheric contaminants such as
designed for arc welding must be used with the hand oxygen and nitrogen. Shielding gas is supplied
or face shield whenever viewing the arc. through the gun and cable assembly, through the gas
nozzle and into the welding zone.
The arc melts the base metal and actually digs into it
much as water through a nozzle on a garden hose
digs into the earth. The molten metal forms a molten
pool or crater and tends to flow away from the arc. As
it moves away from the arc, it cools and solidifies.
Gas nozzle
The function of the Innershield cored wire electrode is
much more than simply to carry current to the arc. The Solid wire Shielding gas
wire core is composed of fluxes and/or alloying ingre- electrode
dients around which a steel sheath has been formed.
Weld metal
It is simply a stick electrode turned inside out in a con-
Base metal
tinuous wire form.
FIGURE B.10
The cored wire melts in the arc and tiny droplets of
molten metal shoot across the arc into the molten
pool. The wire sheath provides additional filler metal
for the joint to fill the groove or gap between the two When comparing the GMAW and FCAW processes,
pieces of base metal. you can see that the principal difference between the
two lies in the type of shielding used. GMAW uses gas
The core materials also melt or burn in the arc and for shielding, thus we have Gas Metal Arc Welding.
perform several functions. They make the arc stead- FCAW uses the melting or burning of the core ingredi-
ier, provide a shield of smoke-like gas around the arc ents for shielding, and is thus termed Self-Shielded
to keep oxygen and nitrogen in the air away from the Flux Cored Arc Welding.
molten metal, and provide a flux for the molten pool.
The flux picks up impurities and forms the protective The recommended wire for Gas Metal Arc Welding
slag on top of the weld during cooling. (MIG) is Lincolnweld 0.025� (0.6 mm) L-56 electrode.
Lincolnweld� L-56 is capable of welding a wide range
After running a weld bead, the slag may be removed of mild steels in all positions, however, more skill is
with a chipping hammer and wire brush. This required for out-of-position welding with the GMAW
improves appearance and allows for inspection of the process.
finished weld.
Since machine size and output characteristics limit the PROCESS SELECTION
size and type of wire electrode which can be used,
Lincoln 0.035" (0.9mm) NR-211-MP Innershield elec- By gaining knowledge of the differences between the
trode is recommended for Self-Shielded Flux Cored two processes, you will be able to select the best
Arc Welding with this machine. process for the job you have at hand. In selecting a
process, you should consider:
For GMAW (MIG) Process
1. Is most of my welding performed on 16 gauge and
lighter materials?
SP-125 PLUS
B-10 LEARNING TO WELD
JOINT TYPES AND POSITIONS
2. Can I afford the extra expense, space, and lack of
portability required for gas cylinders and gas sup-
ply? Five types of welding joints are: Butt Welds, Fillet
Welds, Lap Welds, Edge Welds and Corner Welds.
3. Do I require clean, finished-looking welds? See Figure B.11.
If you have answered yes to all the above questions Of these, the Butt Weld and Fillet Weld are the two
GMAW may be the process for you. If you have most common welds.
answered no to any of the above questions, then you
should consider using the FCAW process.
For FCAW (Innershield) Process
1. Do I want simplicity and portability?
Butt weld Lap weld
2. Will welding be performed outdoors or under windy
conditions?
3. Do I require good all position welding capability?
4. Will most welding be performed on 16 gauge and
heavier, somewhat rusty or dirty materials?
Edge weld Fillet weld Corner weld
5. Weld must be cleaned prior to painting.
FIGURE B.11
COMMON METALS
Butt Welds
Most metals found around the farm, small shop or Place two plates side by side, leaving a space approx-
home are low carbon steel, sometimes referred to as imately one half the thickness of the metal between
mild steel. Typical items made with this type of steel them in order to get deeper penetration.
include most sheet metal, plate, pipe and rolled
shapes such as channels and angle irons. This type of Securely clamp or tack weld the plates at both ends,
steel can usually be easily welded without special pre- otherwise the heat will cause the plates to move apart.
cautions. Some steels, however, contain higher car- See Figure B.12.
bon levels or other alloys and are more difficult to
weld. Basically, if a magnet sticks to the metal and Now weld the two plates together. Weld from left to
you can easily cut the metal with a file, chances are right (if right handed). Point the wire electrode down in
good that the metal is mild steel and that you will be the crack between the two plates, keeping the gun
able to weld the material. In addition, aluminum and slightly tilted in the direction of travel. Watch the
stainless steel can be welded using the K664-1 molten metal to be sure it distributes itself evenly on
Aluminum Welding Kit. For further information on both edges and in between the plates. This is refered
identifying various types of steels and other metals, to as the “pull technique�. On thin gauge sheet metal,
and for proper procedures for welding them, we again use the “push technique�. See “Welding Techniques
suggest you purchase a copy of “New Lessons in Arc for GMAW (MIG) Process�.
Welding�.
Regardless of the type of metal being welded, in order
to get a quality weld, it is important that the metal is
free of oil, paint, rust or other contaminants.
SP-125 PLUS
B-11
LEARNING TO WELD
45°
FIGURE B.12 FIGURE B.15
Penetration
Welding In The Vertical Position
Unless a weld penetrates close to 100% of the metal
thickness, a butt weld will be weaker than the material
Welding in the vertical position can be done either ver-
welded together. In the example shown in Figure
tical-up or vertical-down. Vertical-up is used whenever
B.13, the total weld is only half the thickness of the
a larger, stronger weld is desired. Vertical-down is
material thus the weld is only approximately half as
used primarily on sheet metal 5/32� (3.9 mm) and
strong as the metal.
under for fast, low penetrating welds.
WARNING
Use of this unit on thicker materials than recom-
mended may result in poor welds. The welds may
“look� good, but may just be “sitting� on top, of
the plate. This is called “Cold Casting� and will
result in weld failure.
FIGURE B.13
Vertical-up And Overhead Welding
The problem, when welding vertical-up, is to put the
molten metal where it is wanted and make it stay
there. If too much molten metal is deposited, gravity
will pull it downwards and make it “drip�. Therefore, a
certain technique has to be followed.
When welding out-of-position, run stringer beads.
Don’t whip, break the arc, move out of the puddle, or
FIGURE B.14
move too fast in any direction. Use Wire Feed Speed
(WFS) in the low portion of the range. The general
In the example shown in Figure B.14, the joint has
technique and proper gun angle is illustrated in Figure
been welded so that 100% penetration could be
B.16.
achieved. The weld, if properly made, is as strong as
or stronger than the original metal.
Generally, keep the electrode nearly perpendicular to
the joint as illustrated. The maximum angle above per-
Fillet Welds
pendicular may be required if porosity becomes a
When welding fillet welds, it is very important to hold
problem.
the wire electrode at a 45° angle between the two
sides or the metal will not distribute itself evenly. The
gun nozzle is generally formed at an angle to facilitate
this. See Figure B.15.
SP-125 PLUS
B-12 LEARNING TO WELD
MACHINE SET UP FOR THE
SELF-SHIELDED FCAW PROCESS
1. See PROCESS GUIDELINES in the OPERATION
section for selection of welding wire and shielding
gas, and for range of metal thicknesses that can be
welded.
2. See the Application Guide on the inside of wire
feed section door for information on setting the
controls.
PROPER GUN ANGLE PROPER GUN ANGLE
FOR GMAW PROCESS FOR FCAW PROCESS
3. Set the “Voltage� and “Wire Speed� controls to the
WELDING IN THE VERTICAL UP POSITION WELDING IN THE VERTICAL UP POSITION
settings suggested on the Application Guide for the
FIGURE B.16
welding wire and base metal thickness being used.
The voltage control is marked “V� and the wire feed
Vertical-down Welding speed is marked ‘â?™olo.’â??
Refer to Figure B.17 Vertical-down welds are applied
at a fast pace. These welds are therefore shallow and 4. Check that the polarity is correct for the welding
narrow and, as such, are excellent for sheet metal. wire being used. Set the polarity for DC(�) when
Vertical-down welds may be applied to 5/32� (3.9 mm) welding with NR-211-MP Innershield electrode.
and lighter material. See Work Cable Installation in the INSTALLATION
section for instructions on changing polarity.
Use stringer beads and tip the gun in the direction of
travel so the arc force helps hold the molten metal in 5. When using Innershield electrode, the gasless noz-
the joint. Move as fast as possible consistent with zle may be used instead of a gas nozzle to improve
desired bead shape. visibility of the arc.
The important thing is to continue lowering the entire 6. Connect work clamp to metal to be welded. Work
arm as the weld is made so the angle of the gun does clamp must make good electrical contact to the
not change. Move the electrode wire fast enough that work piece. The work piece must also be grounded
the slag does not catch up with the arc. Vertical-down as stated in the “Arc Welding Safety Precautions�
welding gives thin, shallow welds. It should not be at the beginning of this manual.
used on heavy material where large welds are
required.
WELDING TECHNIQUES FOR THE SELF-
SHIELDED FCAW PROCESS
Four simple manipulations are of prime importance
when welding. With complete mastery of the four,
welding will be easy. They are as follows:
1. The Correct Welding Position
Figure B.18 illustrates the correct welding position
for right handed people. (For left handed people, it
is the opposite.)
Hold the gun (of the gun and cable assembly) in
your right hand and hold the shield with your left
hand. (Left handers simply do the opposite.)
FIGURE B.17
When using the FCAW Process, weld from left to
right (if you are right handed). This enables you to
clearly see what you are doing. (Left handers do
the opposite.) Tilt the gun toward the direction of
travel holding the electrode at an angle as shown
in Figure B.18.
SP-125 PLUS
B-13
LEARNING TO WELD
Contact Tip
Wire Electrode
FIGURE B.18
3/8 � 1/2� (10 � 12 mm)
Electrical Stickout (ESO)
WARNING
FIGURE B.19
ARC RAYS can burn eyes and skin.
The easiest way to tell whether the ESO is the cor-
When using an open arc process, it
rect length is by listening to its sound. The correct
Is necessary to use correct eye,
ESO has a distinctive “crackling� sound, very much
head and body protection.
like eggs frying in a pan. A long ESO has a hollow,
blowing or hissing sound. If the ESO is too short,
Protect yourself and others, read
you may stick the contact tip or nozzle to the weld
“ARC RAYS can burn� at the front
puddle and/or fuse the wire to the contact tip.
of this manual.
4. The Correct Welding Speed
2. The Correct Way To Strike An Arc
The important thing to watch while welding is the
1. Be sure the work clamp makes good electrical
puddle of molten metal right behind the arc. See
contact to the work.
Figure B.20. Do not watch the arc itself. It is the
appearance of the puddle and the ridge where the
2. Position gun over joint. End of wire may be
molten puddle solidifies that indicates correct weld-
lightly touching the work.
ing speed. The ridge should be approximately 3/8�
(10 mm) behind the wire electrode.
3. Position face shield to protect face and eyes,
close gun trigger, and begin welding. Hold the
Most beginners tend to weld too fast, resulting in a
gun so that the contact tip to work distance is
thin uneven, “wormy� looking bead. They are not
about 3/8 to 1/2 inch (10 � 12 mm).
watching the molten metal.
4. To stop welding, release the gun trigger and
the pull the gun away from the work after the
arc goes out.
5. A ball may form at the tip end of the wire after
welding. For easier restrikes (with Innershield
wire) the ball may be removed by feeding out a
few inches of wire and simply bending the wire
back and forth until it breaks off.
Solidifying ridge
6. When no more welding is to be done, turn off Molten puddle
the machine.
3. The Correct Electrical Stickout (ESO)
The electrical stickout (ESO) is the distance from
the end of the contact tip to the end of the wire.
FIGURE B.20
See Figure B.19.
Once the arc has been established, maintaining
the correct ESO becomes extremely important.
The ESO should be approximately 3/8 to 1/2 inch
(10 to 12 mm) long.
SP-125 PLUS
B-14 LEARNING TO WELD
Helpful Hints For the SP-125 Plus, use the following:
Mild Steel 16 gauge or 1/16 inch
1. For general welding, it is not necessary to weave
(1.6 mm)
the arc, neither forward or backward nor sideways.
Weld along at a steady pace. You will find it easier. Electrode 0.035" (0.9 mm)
NR-211-MP
2. When welding on thin plate, you will find that you Innershield Wire
will have to increase the welding speed, whereas
Voltage Setting “V� E
when welding on heavy plate, it is necessary to go
more slowly in order to get good penetration. Wire Feed Speed “o|o� 2
3. When welding sheet metal 16 gauge (1.5 mm) and
lighter, heat buildup may cause part warpage and
Refer to Figure B.22.
burn through. One way to eliminate these problems
is to use the back-stepping method illustrated in
1. Learn to strike an arc by positioning the gun over
Figure B.21.
the joint and touching the wire to the work.
2. Position face shield to protect face and eyes.
First weld from A to B; then from C to A; then
from D to C; then from E to D, and so on.
3. Depress gun trigger, hold gun so contact tip to
work distance is about 3/8 to 1/2 inch (10 to 12
B A C D E
mm) and the gun is at proper angle.
4. After you strike the arc, practice the correct electri-
Back-Stepping
cal stickout. Learn to distinguish it by its sound.
FIGURE B.21
5. When you are sure that you can hold the correct
electrical stickout, with a smooth “crackling� arc
Practice
start moving. Look at the molten puddle constantly,
and look at the “ridge� where the metal solidifies.
The best way of getting practice in the four skills that
enable you to maintain:
6. Run beads on a flat plate. Run them parallel to the
top edge (the edge farthest away from you). This
1. Correct welding position
gives you practice in running straight welds, and
also gives you an easy way to check your
2. Correct way to strike an arc
progress. The 10th weld will look considerably bet-
ter than the first weld. By constantly checking on
3. Correct electrical stickout
your mistakes and your progress, welding will soon
be a matter of routine.
4. Correct welding speed
is to perform the following exercise.
Contact
Tip
ESO
Gun Angle
FIGURE B.22
SP-125 PLUS
B-15
LEARNING TO WELD
MACHINE SET UP FOR THE GMAW (MIG)
PROCESS
1. See PROCESS GUIDELINES in the OPERATION
section for selection of welding wire and shielding
gas, and for range of metal thicknesses that can be
welded.
2. See the Application Guide on the inside of wire
FIGURE B.23
feed section door for information on setting the
controls.
When using the GMAW process on light gauge mater-
ial, weld from right to left (if you are right handed).
3. Set the “Voltage� and “Wire Speed� controls to the
This results in a colder weld and has less tendency for
settings suggested on the Application Guide for the
burn through.
welding wire and base metal thickness being used.
The voltage control is marked “V� and the wire feed
2. The Correct Way To Strike An Arc
speed is marked ‘â?™olo.’â??
WARNING
4. Check that the polarity is correct for the welding
wire being used. Set the polarity for DC(+) when
ARC RAYS can burn eyes and skin.
welding with the GMAW (MIG) process. See Work
Cable Installation in the INSTALLATION section for
When using an open arc process, it
instructions for changing polarity.
Is necessary to use correct eye,
head and body protection.
5. Check that the gas nozzle and proper size liner
and contact tip are being used and that the gas
Protect yourself and others, read
supply is turned on. If adjustable, set for 15 to 20
“ARC RAYS can burn� at the front
cubic feet per hour (7 to 10 l/min.) under normal
of this manual.
conditions, increase to as high as 35 CFH (17
I/min.) under drafty (slightly windy) conditions.
1. Be sure the work clamp makes good electrical con-
6. Connect work clamp to metal to be welded. Work
tact to the work.
clamp must make good electrical contact to the
work piece. The work piece must also be grounded
2. Position gun over joint. End of wire may be lightly
as stated in the “Arc Welding Safety Precautions�
touching the work.
at the beginning of this manual.
3. Position face shield to protect face and eyes, close
gun trigger, and begin welding. Hold the gun so
WELDING TECHNIQUES FOR THE GMAW
that the contact tip to work distance is about 3/8 to
(MIG) PROCESS
1/2 inch (10 � 12 mm).
Four simple manipulations are of prime importance
4. To stop welding, release the gun trigger and pull
when welding. With complete mastery of the four,
the gun away from the work after the arc goes out.
welding will be easy. They are as follows:
5. A ball may form at the tip end of the wire after
1. The Correct Welding Position
welding. For easier restrikes, the ball may be
Figure B.23 illustrates the correct welding position
removed by feeding out a few inches of wire and
for right handed people. (For left handed people, it
cutting off the end of the wire with wire cutters.
is the opposite.)
6. When no more welding is to be done, close the
When GMAW (MIG) welding on sheet metal, it is
valve on the gas cylinder, momentarily operate the
important to use the “forehand� push technique.
gun trigger to release gas pressure, then turn off
the machine.
Hold the gun (of the gun and cable assembly) in
your right hand and hold the shield with your left
hand. (Left handers simply do the opposite.)
SP-125 PLUS
B-16 LEARNING TO WELD
Helpful Hints
1. For general welding, it is not necessary to weave
the arc, neither forward or backward nor sideways.
Contact Tip Weld along at a steady pace. You will find it easier.
2. When welding on thin plate, you will find that you
will have to increase the welding speed, whereas
Wire Electrode
when welding on heavy plate, it is necessary to go
ESO
more slowly in order to get good penetration.
3. When welding sheet metal 16 gauge (1.5 mm) and
lighter, heat buildup may cause part warpage and
FIGURE B.24
burn through. One way to eliminate these problems
is to use the back-stepping method illustrated in
3. The Correct Electrical Stickout (ESO)
Figure B.21.
The electrical stickout (ESO) is the distance from
the end of the contact tip to the end of the wire.
See Figure B.24.
Practice
Once the arc has been established, maintaining
The best way of getting practice in the four skills that
the correct ESO becomes extremely important.
enable you to maintain:
The ESO should be approximately 3/8 to 1/2 inch
(10 to 12 mm) long.
1. Correct welding position
The easiest way to tell whether the ESO is the cor-
2. Correct way to strike an arc
rect length is by listening to its sound. The correct
ESO has a distinctive “crackling� sound, very much
3. Correct electrical stickout
like eggs frying in a pan. A long ESO has a hollow,
blowing or hissing sound. If the ESO is too short,
4. Correct welding speed
you may stick the contact tip or nozzle to the weld
puddle and/or fuse the wire to the contact tip.
is to perform the following exercise.
4. The Correct Welding Speed
For the SP-125 Plus, use the following:
The important thing to watch while welding is the
puddle of molten metal right behind the arc. See Mild Steel 16 gauge or 1/16 inch
Figure B.25. Do not watch the arc itself. It is the (1.6 mm)
appearance of the puddle and the ridge where the
Electrode Lincolnweld 0.025 L-56
molten Puddle solidifies that indicates correct weld-
electrode
ing speed. The ridge should be approximately 3/8�
CO2
(10 mm) behind the wire electrode.
Voltage Setting “V� G
Most beginners tend to weld too fast, resulting in a
Wire Feed Speed “o|o� 5
thin, uneven, “wormy� looking bead. They are not
watching the molten metal.
Refer to Figure B.22.
1. Learn to strike an arc by positioning the gun over
the joint and touching the wire to the work.
Molten puddle
2. Position face shield to protect face and eyes.
Weld metal ridge
3. Depress gun trigger, hold gun so contact tip to
Base metal
work distance Is about 3/8 to 1/2 inch (10 to 12
mm) and the gun is at proper angle.
FIGURE B.25
SP-125 PLUS
B-17
LEARNING TO WELD
4. After you strike the arc, practice the correct electri- 2. Decrease stickout.
cal stickout. Learn to distinguish it by its sound.
3. Decrease WFS (wire feed speed.
4. Decrease travel speed.
5. When you are sure that you can hold the correct
electrical stickout, with a smooth “crackling� arc, 5. Decrease drag angle.
start moving. Look at the molten puddle constantly.
6. Check for correct gas, if used.
6. Run beads on a flat plate. Run them parallel to the
To Reduce Spatter (in order of importance):
top edge (the edge farthest away from you). This
gives you practice in running straight welds, and
also gives you an easy way to check your
progress. The 10th weld will look considerably bet-
ter than the first weld. By constantly checking on
your mistakes and your progress, welding will soon
be a matter of routine.
TROUBLESHOOTING WELDS 1. Increase voltage.
Good welds have excellent appearance.
2. Increase drag angle.
3. Decrease stickout.
4. Increase WFS (wire feed speed).
5. Decrease travel speed.
6. Check for correct gas, if used.
To Correct Poor Penetration (in order of impor-
tance):
To Eliminate Porosity (in order of importance):
1. Decrease stickout.
2. Increase WFS (wire feed speed).
3. Increase voltage.
4. Decrease speed.
5. Decrease drag angle.
6. Check for correct gas, if used.
1. Turn on gas supply, if used
If Arc Blow Occurs (in order of importance):
2. Decrease voltage.
NOTE: Try different ground connection locations
3. Increase stickout. before adjusting procedures.
4. Increase WFS (wire feed speed). 1. Decrease drag angle.
5. Decrease drag angle. 2. Increase stickout.
6. Decrease travel speed. 3. Decrease voltage.
NOTE: Always be sure the joint is free from moisture, 4. Decrease WFS (wire feed speed.
oil, rust, paint or other contaminants.
5. Decrease travel speed.
To Eliminate a Ropy Convex Bead
To Eliminate Stubbing* (in order of importance):
(in order of importance):
1. Increase voltage
2. Decrease WFS (wire feed speed)
3. Decrease stickout
4. Increase drag angle
* Stubbing occurs when the electrode drives through
the molten puddle and hits the bottom plate tending
to push the gun up.
1. Increase voltage
SP-125 PLUS
B-18 LEARNING TO WELD
Proper Gun Handling
Most feeding problems are caused by improper han-
dling of the gun cable or electrodes.
1. Do not kink or pull the gun around sharp corners
2. Keep the gun cable as straight as practical when
welding.
3. Do not allow dolly wheels or trucks to run over the
cables.
4. Keep the cable clean.
5. Innershield electrode has proper surface lubrica-
tion. Use only clean, rust-free electrode.
6. Replace contact tip when it becomes worn or the
end is fused or deformed.
SP-125 PLUS
B-19
APPLICATION CHART
SP-125 PLUS
C-1 ACCESSORIES
OPTIONAL ACCESSORIES 6. KP666-035C Knurled Drive Roll (optional) �
Reversible Drive Roll with double knurled grooves
1. K520 Utility Cart � Designed to transport the for .035 (0.9 mm) cored electrode.
Lincoln family of small welders. Has provisions for
mounting a single gas cylinder. Has front casters 7. K695-2 Spot / Stitch Timer Kit � Includes spot
and large rear wheels. Handle height is easily timer to control the spot welding arc time, and a
adjustable. Bottom tray provided for tools and stitch timer to control the on/off cycle time of the
accessories. Easy assembly required; takes less arc to prevent burnthrough on thin gauge metals.
than 15 minutes. Also includes spot welding nozzle.
2. K1800-1 CO2 Adjustable Regulator and Hose Kit � The Spot/Stitch Timer Kit installs inside the wire
Includes an adjustable pressure flow regulator for feed compartment, replacing the blank panel locat-
use on CO2 cylinders. ed below the gun trigger lead connectors, per the
Weld shielding gas may be obtained from a weld- installation instructions included with the kit.
ing supply distributor.
Also included is a gas hose which connects to the 8. K697-1 Power Cord Extension � Extension 115V
rear of the welder. power cord (20�/6.1m) allows extra convenience
when work is located some distance away from
See “Gas Connection� in Installation section for
power receptacle.
installation instructions.
9. K549-1 .035 (0.9 mm) Innershield Welding Kit
3. K1799-1 Argon-Mixed Gas Adjustable Includes a contact tip, a gasless nozzle and a cable
Regulator and Hose Kit (1) liner to permit the Magnumâ„? 100L gun and cable
Includes an adjustable pressure and flow regulator to use .035� (0.9 mm) diameter flux-cored elec-
for use on argon-mixed gas cylinders. Also includ- trode. Also included is a spool of .035 (0.9 mm)
ed is a gas hose which connects to the rear of the Innershield NR-211-MP.
welder.
4. K586-1 Deluxe Adjustable Gas Regulator &
Hose Kit
Accommodates CO2 or mixed Gas Cylinders.
5. K663-2 Aluminum Welding Kit � This kit
required for welding with .035 Aluminum wire.
Included with this kit are a drive roll, liner and con-
tact tip. It is important when changing between
welding with steel wire and aluminum to
exchange these components due to the lubri-
cant applied to steel wire. Failure to do so may
result in contaminated welds when welding alu-
minum.
See Maintenance section for instructions on
installing drive roll, cable liner, contact tip and their
proper configuration.
This regulator comes standard with a 4.5 foot hose
(1)
with the SP125+.
SP-125 PLUS
C-2
ACCESSORIES
INNERSHIELD (FCAW) REPLACEMENT PARTS
CONVERSION
Complete Gun and Cable Assembly
L8311-6 (K530-4)
Several changes are needed to convert the unit for
operation with the Innershield (FCAW) process. The
Contact Tip .025� (0.6 mm)
K549-1 Innershield Kit includes all the necessary
S19726-1
accessories for this conversion and are provided for
this purpose. The following conversions should be Contact Tip .030� (0.8 mm)
made using the contents of this kit: S19726-2
1. Change the output polarity to DC(-). See “Work Contact Tip .035� (0.9 mm)
Cable Installation� section for details. S19726-3
Contact Tip .045� (1.2 mm)
2. Install proper drive roll for the wire size selected.
S19726-4
See “Changing Drive Roll� in Maintenance section
for details.
Contact Tip-Tapered .025� (0.6 mm)
S20278-1
3. Install the proper gun liner and tip for the wire size
selected. See “Component Replacement� in Contact Tip-Tapered .030� (0.8 mm)
Maintenance section for details. S20278-2
4. Remove gas nozzle (if installed) and install gasless Contact Tip-Tapered .035� (0.9 mm)
nozzle. To remove, simply unscrew. S20278-3
Contact Tip-Tapered .045� (1.2mm)
S20278-4
Liner .023 - .030� (0.6 - 0.8 mm)
M16291-2
Liner .030 - .035� (0.8 - 0.9 mm)
M16291-6
Liner .035/.045� (0.9/1.2 mm)
M16291-1
Gas Diffuser
S19728
Gas Nozzle
M16294
Gas Nozzle-Tip Recessed 3/8� (9.5 mm)
Opening I.D.
M16684
Gas Nozzle-Tip Recessed 1/2� (12.7 mm)
Opening I.D.
M16684-1
Gas Nozzle-Tip Recessed 5/8� (15.9 mm)
Opening I.D.
M16684-2
Spot Welding Nozzle
M17846-1
Gasless Nozzle (Innershield Only)
M16418
SP-125 PLUS
D-1 MAINTENANCE
AFTER FEEDING 50# OF FLUX CORED
MAINTENANCE
WIRE OR 300# OF SOLID WIRE
SAFETY PRECAUTIONS
� Unplug machine or turn power switch to OFF � “O�
WARNING position. Remove gun and cable from machine.
� Remove gas nozzle and contact tip from gun.
ELECTRIC SHOCK can kill.
� Lay cable out straight - blow out gently into gun end
� Disconnect input power by remov- with compressed air. Bend cable back and forth �
ing plug from receptacle before blow out again � Repeat until clean.
working inside SP-125 PLUS. Use
only grounded receptacle. Do not
WARNING
touch electrically “hot� parts
inside SP-125 PLUS.
Excessive pressure at start may cause the dirt to
form a plug.
� Have qualified personnel do the
maintenance and trouble shooting
work.
PERIODICALLY AS REQUIRED
� Blow dirt out of the welder with low pressure air to
ITEMS REQUIRING NO eliminate excessive dirt and dust buildup that could
MAINTENANCE cause welder to run hot.
� Drive Motor and Gearbox � Lifetime lubrication � Blow dirt out of: Rectifier & Fan Motor Assembly;
� Fan Motor- Lifetime lubrication. PC Board located on Case Side Assembly; and
� Wire Reel Spindle � Do NOT lubricate shaft. Center Assembly components.
ROUTINE AND PERIODIC MAINTE- � Vacuum accumulated dirt from gearbox and wire
NANCE feed section.
BEFORE EACH USE � Inspect the incoming guide tube and clean inside
diameter if necessary. Replace when excessively
� Check over machine and accessories for any obvious
worn.
condition that may prevent safe performance or oper-
ation, repair or replace items as necessary to correct
� Replace Contact Tip � when hole is enlarged or
any abnormal condition.
elongated (refer to “CHANGING THE CONTACT
AFTER 5 MINUTES OF WELDING TIP�, in this section).
or when spatter accumulates in nozzle
� Replace gas nozzle.
� Clean nozzle to avoid bridging between nozzle and
� Replace Liner � when wire feeding problems occur
contact tip which results in shorted nozzle, poor welds
and other items have been checked (refer to
and overheated gun. Hint: Anti-stick spray or gel
“CHANGING LINER� procedure in this section).
available from a welding supply distributor may
reduce buildup and aid in spatter removal.
� Replace internal gun handle parts as necessary
(see Procedure at the end of this section).
AFTER EACH SPOOL OF WIRE FEED
� Remove contact tip and clean inside diameter with
short piece of wire
� Clean cable liner � when rough and erratic wire feed-
ing occur.
SP-125 PLUS
D-2
MAINTENANCE
GUN AND CABLE 2. Replace worn contact tips as required. A variable
or “hunting� arc is a typical symptom of a worn con-
MAINTENANCE
tact tip. To install a new tip, choose the correct size
contact tip for the electrode being used (wire size is
FOR MAGNUMâ„? 100L GUN
stenciled on the side of the contact tip) and screw it
snugly into the gas diffuser.
Gun Cable Cleaning
Clean cable liner after using approximately 300 lbs
3. Remove spatter from inside of gas nozzle and from
(136 kg) of solid wire or 50 lbs (23 kg) of flux-cored
tip after each 10 minutes of arc time or as required.
wire. Remove the cable from the wire feeder and lay it
out straight on the floor. Remove the contact tip from
4. Be sure the gas nozzle is fully screwed onto the
the gun. Using low pressure air, gently blow out the
diffuser for gas shielded processes. For the
cable liner from the gas diffuser end.
Innershield® process, the gasless nozzle should
be screwed onto the diffuser.
CAUTION
5. To remove gun tube from gun, remove gas nozzle
Excessive pressure at the start may cause the dirt
or gasless nozzle and remove diffuser from gun
to form a plug.
tube. Remove both collars from each end of the
gun handle and separate the handle halves.
Loosen the locking nut holding the gun tube in
Flex the cable over its entire length and again blow
place against the gun end cable connector.
out the cable. Repeat this procedure until no further
Unscrew gun tube from cable connector. To install
dirt comes out.
gun tube, screw the locking nut on the gun tube as
far as possible. Then screw the gun tube into the
cable connector until it bottoms. Then unscrew (no
Contact Tips, Nozzles, and Gun Tubes
more than one turn) the gun tube until its axis is
1. Dirt can accumulate in the contact tip hole and
perpendicular to the flat sides of the cable connec-
restrict wire feeding. After each spool of wire is
tor and pointed in the direction of the trigger.
used, remove the contact tip and clean it by push-
Tighten the locking nut so as to maintain the proper
ing a short piece of wire through the tip repeatedly.
relationship between the gun tube and the cable
Use the wire as a reamer to remove dirt that may
connector. Replace the gun handle, trigger and dif-
be adhering to the wall of the hole through the tip.
fuser. Replace the gas nozzle or gasless nozzle.
CONFIGURATION OF COMPONENTS IN WIRE FEEDING SYSTEM
Contact Tip Cable Liner Drive Roll
Components shipped with S19726-1(In Gun) M16291-6 M15448 Stenciled (.030 / .035)
SP-125 PLUS .025� (0.6mm) .035� (0.9mm) 2 Smooth grooves
S19726-2(Loose) Small .030 (0.8mm)
.030� (0.8mm) Large .035� (0.9mm)
K549-1 .035� (0.9mm) S19726-3 M16291-6 KP666-035 Use Large groove
Innershield Welding Kit .035� (0.9mm) .035 (0.9mm)
K663-2 .035 (0.9mm) S24221-1 M18971-1 S24220 .035-3/64 (Drive roll)
Aluminum or Stainless Kit*� .035A (0.9mm) .045� (1.2mm) S24219 (Idle roll)
KP666-035C M15448-1 Stenciled
2 Knurled grooves for .035� (0.9mm)
� If .030 Solid wire feeding is desired obtain an S19726-2 Contact Tip, an M16291-2 Cable Liner and an M15448 Drive Roll (Smaller Groove).
* It is important when changing between welding with steel wire and aluminum to exchange feeding components due to the lubricant applied to steel wire. Failure
to do so may result in contaminated welds when welding aluminum.
� Recommended for best feeding performance.
SP-125 PLUS
D-3 MAINTENANCE
COMPONENT REPLACEMENT CAUTION
PROCEDURES
When inching the welding wire, the drive rolls,
CHANGING THE CONTACT TIP
gun connector block, and gun contact tip are
energized relative to work and ground and remain
1. Unplug or turn power switch to Off “O� position.
energized for several seconds after the gun trig-
ger is released.
2. Refer to Figure D.2. Remove the gas nozzle from
the gun by unscrewing counter-clockwise.
4. Remove the drive roll, flip over and reinstall with the
3. Remove the existing contact tip from the gun by
opposite groove closest to the gearbox.
unscrewing counter-clockwise.
NOTE: The stencil of the groove that you want to use
4. Insert and hand tighten desired contact tip.
is marked on the outside of the drive unit
(when installed)
5. Replace gas nozzle.
5. Push a length of straightened welding wire through
CHANGING THE SP-125 Plus FOR USE
the wire feeder guide tubes and reset the Phillips
WITH INNERSHIELD FLUX CORED WIRE
Head screw to secure the drive roll onto the shaft.
� Change The Contact Tip
6. Reapply the spring loaded idle arm tensioner.
1. Refer to Figure D.2. Remove the gas nozzle from
7. Turn the power “ON� (I) and check the drive roll for
the gun by unscrewing counter-clockwise.
slipping when feeding wire. DO NOT OVERTIGHTEN - If
necessary, tighten or loosen the spring loaded idle arm tension-
2. Remove the existing contact tip from the gun by
er (2).
unscrewing counter-clockwise.
3. Insert and hand tighten the contact tip for use with
0.035� Innershield Flux Cored Wire.
4. Replace gas nozzle � The gasless nozzle may be
used instead of the gas nozzle to give improved visi-
bility of the arc.
3
CHANGING DRIVE ROLL
The drive roll, Figure D.1 Item 1, has two grooves; one
2
for .023" � .025" (0.6 mm) solid steel electrode and a
larger groove for .030" (0.8 mm) solid and .035" (0.9 mm)
flux-cored steel electrode. As shipped, the drive roll is
installed in the .023"-.025" (0.6 mm) position. 1
If .030"/.035" (0.8/0.9 mm) wire is to be used, the
drive roll must be reversed as follows:
1. Turn the power switch to OFF (marked “O�).
FIGURE D.1
2. Release the spring-loaded idle arm tensioner, Figure D.1
Item 2, and lift the idle roll arm, Figure D.1 Item 3, away
from the drive roll.
3. Loosen the Phillips Head screw holding the drive
roll onto the drive shaft.
SP-125 PLUS
D-4
MAINTENANCE
CHANGING LINER
NOTICE: The variation in cable lengths pre-
vents the interchangeability of liners. Once
a liner has been cut for a particular gun, it
should not be installed in another gun
1-1/4 (31.8 mm)
unless it can meet the liner cutoff length
Liner Trim Length
requirement. Refer to Figure D.2.
1. Remove gun and cable assembly from
Gas Diffuser machine.
Slotted Brass Cable Contact Tip
2. Remove the gas nozzle from the gun
(Threaded)
Set Screw Connector
by unscrewing counter-clockwise.
Gas Nozzle or
Gasless Nozzle
3. Remove the existing contact tip from
(Threaded)
the gun by unscrewing counter-clock-
Liner Assembly wise.
(Liner bushing to be seated tight
against brass cable connector)
4. Remove the gas diffuser from the gun
FIGURE D.2 tube by unscrewing counter-clockwise.
Liner trim length for gun with red trigger (Magnumâ„? 100L)
5. Lay the gun and cable out straight on a
flat surface. Loosen the set screw locat-
ed in the brass connector at the wire
feeder end of the cable. Pull the liner
out of the cable.
6. Insert a new untrimmed liner into the
connector end of the cable. Be sure the
liner bushing is stenciled appropriately
for the wire size being used.
7. Fully seat the liner bushing into the
connector. Tighten the set screw on the
brass cable connector. At this time, the
gas diffuser should not be installed onto
the end of the gun tube.
8. With the gas nozzle and diffuser
removed from the gun tube, be sure the
cable is straight, and then trim the liner
to the length shown in the Figure D.2.
Remove any burrs from the end of the
liner.
9. Screw the gas diffuser onto the end of
the gun tube and securely tighten.
10. Replace the contact tip and nozzle.
SP-125 PLUS
D-5 MAINTENANCE
GUN HANDLE PARTS
The gun handle consists of two halves that are held
together with a collar on each end. To open up the
handle, turn the collars approximately 60 degrees
counter-clockwise until the collar reaches a stop. Then
pull the collar off the gun handle. If the collars are diffi-
cult to turn, position the gun handle against a corner,
place a screwdriver against the tab on the collar and
give the screwdriver a sharp blow to turn the collar
past an internal locking rib. See Figure D-3.
âž?
Counter-clockwise
FIGURE D.3
SP-125 PLUS
E-1
TROUBLESHOOTING
HOW TO USE TROUBLESHOOTING GUIDE
WARNING
Service and Repair should only be performed by Lincoln Electric Factory Trained Personnel.
Unauthorized repairs performed on this equipment may result in danger to the technician and
machine operator and will invalidate your factory warranty. For your safety and to avoid
Electrical Shock, please observe all safety notes and precautions detailed throughout this
manual.
__________________________________________________________________________
This Troubleshooting Guide is provided to Step 2. PERFORM EXTERNAL TESTS.
help you locate and remedy possible The second column labeled “POSSIBLE
machine problems. Simply follow the three- AREAS OF MISADJUSTMENT(S)� lists the
step procedure listed below. obvious external possibilities that may con-
tribute to the machine symptom. Perform
these tests/checks in the order listed. In
Step 1. LOCATE PROBLEM (SYMPTOM).
general, these tests can be conducted with-
Look under the column labeled “PROBLEM
out removing the case wrap-around cover.
(SYMPTOMS)�. This column describes pos-
sible symptoms that the machine may
Step 3. PERFORM COMPONENT TESTS.
exhibit. Find the listing that best describes
If you have exhausted all of the recom-
the symptom that the machine is exhibiting.
mended tests in Step 2, consult your local
Authorized Field Service facility.
Symptoms are grouped into the following
categories: Output Problems; Feeding
Problems; Gas Flow Problems; and
Welding Problems.
CAUTION
If for any reason you do not understand the test procedures or are unable to Perform
the tests/repairs safely, contact your LOCAL AUTHORIZED LINCOLN ELECTRIC
FIELD SERVICE FACILITY for assistance before you proceed.
___________________________________________________________________
CAUTION
If machine case sides and top are removed, the case front must be supported.
Failure to do this could result in mechanical or electrical damage to the SP-125 Plus.
___________________________________________________________________
SP-125 PLUS
E-2 TROUBLESHOOTING
TROUBLESHOOTING GUIDE Observe Safety Guidelines
detailed in the beginning of this manual.
PROBLEMS POSSIBLE AREAS OF RECOMMENDED
(SYMPTOMS) MISADJUSTMENT(S) COURSE OF ACTION
OUTPUT PROBLEMS
Major physical or electrical damage Contact your LOCAL LINCOLN
is evident. AUTHORIZED FIELD SERVICE
FACILITY.
No wire feed, weld output or gas 1. Make sure correct voltage is
flow when gun trigger is pulled. Fan applied to the machine (115
does NOT operate. vac).
2. Make certain that power switch
is in the ON position.
No weld output or wire feed when Contact your LOCAL LINCOLN
gun trigger is pulled. Fan runs and AUTHORIZED FIELD SERVICE
gas flows normally. FACILITY.
No weld output when gun trigger is 1. Arc voltage may be set too low.
pulled. Fan runs, gas flows and
wire feeds normally. 2. Gun tip may be worn � Replace. Contact your local Lincoln
Authorized Field Service Facility.
3. Check for correct input voltage
to machine.
4. Gun or work cable may be
faulty.
No Wire feed, weld output or gas 1. Check the circuit breaker locat-
flow when the gun trigger is pulled - ed in the machine’s wire drive
Fan operates normally. compartment. Reset if tripped.
2. The thermostat may be tripped
due to overheating. Let machine
cool. Weld within the duty cycle
or remove any air obstruction to
machine.
3. Wire feed motor may be over-
loaded. Correct feeding prob-
lem.
4. Gun trigger may be faulty.
CAUTION
If for any reason you do not understand the test procedures or are unable to Perform the tests/repairs safely, contact your
LOCAL AUTHORIZED LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed.
SP-125 PLUS
E-3
TROUBLESHOOTING
Observe Safety Guidelines TROUBLESHOOTING GUIDE
detailed in the beginning of this manual.
PROBLEMS POSSIBLE AREAS OF RECOMMENDED
(SYMPTOMS) MISADJUSTMENT(S) COURSE OF ACTION
FEEDING PROBLEMS
No wire feed when gun trigger is 1. If the wire drive motor is running
pulled. Fan runs, gas flows and check to see if the correct wire
machine has correct open circuit is in the machine.
voltage (28 vdc maximum) � weld
output. 2. If the wire drive motor is running
make sure that the correct drive
rolls are installed in the Contact your local Lincoln
machine. Authorized Field Service Facility.
3. Check for clogged cable liner or
feeding problems.
Wire feed speed motor runs very 1. Make sure that the wire speed
fast. Weld output, gas flow and fan control is not set at maximum.
operate normally.
PROBLEMS POSSIBLE AREAS OF RECOMMENDED
(SYMPTOMS) MISADJUSTMENT(S) COURSE OF ACTION
GAS FLOW PROBLEMS
Low or no gas flow when gun 1. Check gas supply, flow regulator
trigger is pulled. Wire feed, weld and gas hoses.
output and fan operate normally. Contact your local Lincoln
2. Check gun connection to Authorized Field Service Facility.
machine for obstruction or leaky
seals.
CAUTION
If for any reason you do not understand the test procedures or are unable to Perform the tests/repairs safely, contact your
LOCAL AUTHORIZED LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed.
SP-125 PLUS
E-4 TROUBLESHOOTING
Observe Safety Guidelines TROUBLESHOOTING GUIDE
detailed in the beginning of this manual.
PROBLEMS POSSIBLE AREAS OF RECOMMENDED
(SYMPTOMS) MISADJUSTMENT(S) COURSE OF ACTION
WELDING PROBLEMS
Arc is unstable � Poor starting 1. Check for correct input voltage
to machine � 115 vac.
2. Check for proper electrode
polarity for process.
3. Check gun tip for wear or dam- Contact your local Lincoln
age � Replace. Authorized Field Service Facility.
4. Check for proper gas and flow
rate for process.
5. Check work cable for loose or
faulty connections.
6. Check gun for damage or
breaks.
CAUTION
If for any reason you do not understand the test procedures or are unable to Perform the tests/repairs safely, contact your
LOCAL AUTHORIZED LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed.
SP-125 PLUS
Do not Operate with covers removed.
Disconnect input power by unplugging
ARC VOLTAGE
power cord before servicing
CONTROL P.C. BOARD 5K
R1 Do Not touch electrically live parts.
7 7
205 207 Only qualified persons should install,
HIGH VOLTAGE
can kill use or service this machine.
32A
32A 206
*
( J2 )
GAS JUMPERED PLUG STANDARD
SOLENOID
*
SPOT/STITCH TIMER OPTIONAL
( J1 )
WIRE SPEED THERMOSTAT
N.C.
5K (MOUNTED TO
*
DIODE HEATSINK)
R2
( J3 )
31A
531 1 2 1 2 3 4 6
3 5 6 5 8 9 10
4 7
5 3 2 1
4 GUN TRIGGER
208 203
209 212
203
32 206 213 208
539 204
205 541 203 211
207 209
215 213
215
211
(W)
213A
TO GROUND
FAN
539
PER NATIONAL
MOTOR
ELECTRICAL CODE
204 +
541
(B)
203
OUTPUT CHOKE
WIRE FEED MOTOR
24 VAC
L2 AUX WDG.
L1 +
204
CIRCUIT
204
S1 31A 531
BREAKER
D1
ON-OFF
D2 204
SWITCH 202
31 GUN CABLE
+
WIRING DIAGRAMS
N.D. 59,000 f
N.A. CONDUCTOR
N.D. 40V
C1
BLOCK
N.C.
203
SP-125 PLUS WIRING DIAGRAM: CODE 10260, 10481
201
32
T1
N.B., N.D.
D4
D3 203
ELECTRICAL SYMBOLS PER E1537 TO
203 WORK
LEAD COLOR CODE: -
B-BLACK W-WHITE J2
J1 J3
LATCH
*
5
1 2 3 1 2 3 4
NOTES: CONNECTOR CAVITY NUMBER
N.A. DIODES D1 & D3 ARE MOUNTED ON THE OUTSIDE HEATSINK.
N.B. DIODES D2 & D4 ARE MOUNTED ON THE INSIDE HEATSINK,
54321
4 5 6 6 7 8 9 10
WHICH IS CLOSEST TO THE CENTER PANEL.
LATCH LATCH
N.C. COMPONENT VIEWED FROM REAR.
specific diagram for a particular code is pasted inside the machine on one of the enclosure panels.
N.D. BOLTED ALUMINUM CONNECTIONS REQUIRE T12837 JOINT CAVITY NUMBERING SEQUENCE
COMPOUND (DOW CORNING 340) WHEN REATTACHING. (COMPONENT SIDE OF BOARD) CRM28481 (3/98)
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The
M18196
SP-125 PLUS
F-1
NOTES
F-2
SP-125 PLUS
NOTES
SP-125 PLUS
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The Procedure Handbook of Arc Welding Lessons, simply written, cover manipulatory techniques;
With over 500,000 copies of previous editions published machine and electrode characteristics; related subjects,
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The book contains the latest information and application
“hands on�
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For details write: Lincoln Welding School
Symbols. Detailed discussion tells how engineers and
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on assembly and welding information to shop personnel. Cleveland, Ohio 44117-1199.
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Lincoln Welding School Titles: Price Code Quantity Cost
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G Do not touch electrically live parts or G Keep flammable materials away. G Wear eye, ear and body protection.
WARNING electrode with skin or wet clothing.
G Insulate yourself from work and
ground.
Spanish
G No toque las partes o los electrodos G Mantenga el material combustible G Protéjase los ojos, los oÃdos y el
AVISO DE bajo carga con la piel o ropa moja- fuera del área de trabajo. cuerpo.
da.
PRECAUCION G Aislese del trabajo y de la tierra.
French G Ne laissez ni la peau ni des vête- G Gardez à l’écart de tout matériel G Protégez vos yeux, vos oreilles et
ments mouillés entrer en contact inflammable. votre corps.
ATTENTION avec des pièces sous tension.
G Isolez-vous du travail et de la terre.
G Berühren Sie keine stromführenden
German G Entfernen Sie brennbarres Material! G Tragen Sie Augen-, Ohren- und Kör-
Teile oder Elektroden mit Ihrem perschutz!
WARNUNG Körper oder feuchter Kleidung!
G Isolieren Sie sich von den
Elektroden und dem Erdboden!
Portuguese
G Não toque partes elétricas e elec- G Mantenha inflamáveis bem guarda- G Use proteção para a vista, ouvido e
trodos com a pele ou roupa molha- dos. corpo.
ATENÇÃO da.
G Isole-se da peça e terra.
Japanese
Chinese
Korean
Arabic
READ AND UNDERSTAND THE MANUFACTURER’S INSTRUCTION FOR THIS EQUIPMENT AND THE CONSUMABLES TO BE
USED AND FOLLOW YOUR EMPLOYER’S SAFETY PRACTICES.
SE RECOMIENDA LEER Y ENTENDER LAS INSTRUCCIONES DEL FABRICANTE PARA EL USO DE ESTE EQUIPO Y LOS
CONSUMIBLES QUE VA A UTILIZAR, SIGA LAS MEDIDAS DE SEGURIDAD DE SU SUPERVISOR.
LISEZ ET COMPRENEZ LES INSTRUCTIONS DU FABRICANT EN CE QUI REGARDE CET EQUIPMENT ET LES PRODUITS A
ETRE EMPLOYES ET SUIVEZ LES PROCEDURES DE SECURITE DE VOTRE EMPLOYEUR.
LESEN SIE UND BEFOLGEN SIE DIE BETRIEBSANLEITUNG DER ANLAGE UND DEN ELEKTRODENEINSATZ DES HER-
STELLERS. DIE UNFALLVERHÃœTUNGSVORSCHRIFTEN DES ARBEITGEBERS SIND EBENFALLS ZU BEACHTEN.
G Keep your head out of fumes. G Turn power off before servicing. G Do not operate with panel open or
G Use ventilation or exhaust to
WARNING
guards off.
remove fumes from breathing zone.
Spanish
G Los humos fuera de la zona de res- G Desconectar el cable de ali- G No operar con panel abierto o
AVISO DE
piración. mentación de poder de la máquina guardas quitadas.
G Mantenga la cabeza fuera de los antes de iniciar cualquier servicio.
PRECAUCION
humos. Utilice ventilación o
aspiración para gases.
French
G Débranchez le courant avant l’entre- G N’opérez pas avec les panneaux
G Gardez la tête à l’écart des fumées.
G Utilisez un ventilateur ou un aspira- tien. ouverts ou avec les dispositifs de
ATTENTION
protection enlevés.
teur pour ôter les fumées des zones
de travail.
German
G Strom vor Wartungsarbeiten G Anlage nie ohne Schutzgehäuse
G Vermeiden Sie das Einatmen von
abschalten! (Netzstrom völlig öff- oder Innenschutzverkleidung in
Schweibrauch!
WARNUNG
G Sorgen Sie für gute Be- und nen; Maschine anhalten!) Betrieb setzen!
Entlüftung des Arbeitsplatzes!
Portuguese
G Não opere com as tampas removidas. G Mantenha-se afastado das partes
G Mantenha seu rosto da fumaça.
G Desligue a corrente antes de fazer
G Use ventilação e exhaustão para moventes.
ATENÇÃO
serviço. G Não opere com os paineis abertos
remover fumo da zona respiratória.
G Não toque as partes elétricas nuas. ou guardas removidas.
Japanese
Chinese
Korean
Arabic
LEIA E COMPREENDA AS INSTRUÇÕES DO FABRICANTE PARA ESTE EQUIPAMENTO E AS PARTES DE USO, E SIGA AS
PRÃTICAS DE SEGURANÇA DO EMPREGADOR.
� World's Leader in Welding and Cutting Products �
� Sales and Service through Subsidiaries and Distributors Worldwide �
Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com
|