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IM794
SP-
170T April, 2006
For use with machine Code Numbers 10981
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.
OPERATOR’S MANUAL
Copyright © 2006 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.
ELECTRIC AND
MAGNETIC FIELDS
____________________________________________________
may be dangerous
1.b.Operate engines in open, well-ventilated
areas or vent the engine exhaust fumes
outdoors. 2.a. Electric current flowing through any conductor causes
localized Electric and Magnetic Fields (EMF). Welding
current creates EMF fields around welding cables and
welding machines
2.b. EMF fields may interfere with some pacemakers, and
____________________________________________________
welders having a pacemaker should consult their physician
1.c. Do not add the fuel near an open flame
before welding.
welding arc or when the engine is running.
Stop the engine and allow it to cool before
2.c. Exposure to EMF fields in welding may have other health
refueling to prevent spilled fuel from vaporiz-
effects which are now not known.
ing on contact with hot engine parts and
igniting. Do not spill fuel when filling tank. If
2.d. All welders should use the following procedures in order to
fuel is spilled, wipe it up and do not start
minimize exposure to EMF fields from the welding circuit:
engine until fumes have been eliminated.
____________________________________________________
2.d.1. Route the electrode and work cables together - Secure
1.d. Keep all equipment safety guards, covers and devices in
them with tape when possible.
position and in good repair.Keep hands, hair, clothing and
tools away from V-belts, gears, fans and all other moving
2.d.2. Never coil the electrode lead around your body.
parts when starting, operating or repairing equipment.
____________________________________________________
2.d.3. Do not place your body between the electrode and
1.e. In some cases it may be necessary to remove safety work cables. If the electrode cable is on your right
guards to perform required maintenance. Remove side, the work cable should also be on your right side.
guards only when necessary and replace them when the
maintenance requiring their removal is complete. 2.d.4. Connect the work cable to the workpiece as close as
Always use the greatest care when working near moving possible to the area being welded.
parts.
___________________________________________________ 2.d.5. Do not work next to welding power source.
1.f. Do not put your hands near the engine fan. Do not attempt
to override the governor or idler by pushing on the throttle
control rods while the engine is running. Mar �95
___________________________________________________
1.g. To prevent accidentally starting gasoline engines while
turning the engine or welding generator during maintenance
work, disconnect the spark plug wires, distributor cap or
magneto wire as appropriate.
SAFETY ii
ii
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
clothing; on metal structures such as floors, gratings or
FUMES AND GASES
scaffolds; when in cramped positions such as sitting,
kneeling or lying, if there is a high risk of unavoidable or
can be dangerous.
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.
3.f. Maintain the electrode holder, work clamp, welding cable and 5.b. Do not weld in locations near chlorinated hydrocarbon vapors
welding machine in good, safe operating condition. Replace coming from degreasing, cleaning or spraying operations.
damaged insulation. The heat and rays of the arc can react with solvent vapors to
form phosgene, a highly toxic gas, and other irritating prod-
3.g. Never dip the electrode in water for cooling. ucts.
3.h. Never simultaneously touch electrically “hot� parts of 5.c. Shielding gases used for arc welding can displace air and
electrode holders connected to two welders because voltage cause injury or death. Always use enough ventilation,
between the two can be the total of the open circuit voltage especially in confined areas, to insure breathing air is safe.
of both welders.
5.d. Read and understand the manufacturer’s instructions for this
3.i. When working above floor level, use a safety belt to protect equipment and the consumables to be used, including the
yourself from a fall should you get a shock. material safety data sheet (MSDS) and follow your
employer’s safety practices. MSDS forms are available from
3.j. Also see Items 6.c. and 8. your welding distributor or from the manufacturer.
5.e. Also see item 1.b.
Mar �95
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
iv
iv SAFETY
PRÉCAUTIONS DE SÛRETÉ 6. Eloigner les matériaux inflammables ou les recouvrir afin de
prévenir tout risque d’incendie dû aux étincelles.
Pour votre propre protection lire et observer toutes les instructions
et les précautions de sûreté specifiques qui parraissent dans ce
7. Quand on ne soude pas, poser la pince à une endroit isolé de
manuel aussi bien que les précautions de sûreté générales suiv-
la masse. Un court-circuit accidental peut provoquer un
antes:
échauffement et un risque d’incendie.
Sûreté Pour Soudage A L’Arc
8. S’assurer que la masse est connectée le plus prés possible
1. Protegez-vous contre la secousse électrique:
de la zone de travail qu’il est pratique de le faire. Si on place
la masse sur la charpente de la construction ou d’autres
a. Les circuits à l’électrode et à la piéce sont sous tension
endroits éloignés de la zone de travail, on augmente le risque
quand la machine à souder est en marche. Eviter toujours
de voir passer le courant de soudage par les chaines de lev-
tout contact entre les parties sous tension et la peau nue
age, câbles de grue, ou autres circuits. Cela peut provoquer
ou les vétements mouillés. Porter des gants secs et sans
des risques d’incendie ou d’echauffement des chaines et des
trous pour isoler les mains.
câbles jusqu’� ce qu’ils se rompent.
b. Faire trés attention de bien s’isoler de la masse quand on
soude dans des endroits humides, ou sur un plancher
9. Assurer une ventilation suffisante dans la zone de soudage.
metallique ou des grilles metalliques, principalement dans
Ceci est particuliérement important pour le soudage de tôles
les positions assis ou couché pour lesquelles une grande
galvanisées plombées, ou cadmiées ou tout autre métal qui
partie du corps peut être en contact avec la masse.
produit des fumeés toxiques.
c. Maintenir le porte-électrode, la pince de masse, le câble
de soudage et la machine à souder en bon et sûr état
10. Ne pas souder en présence de vapeurs de chlore provenant
defonctionnement.
d’opérations de dégraissage, nettoyage ou pistolage. La
d.Ne jamais plonger le porte-électrode dans l’eau pour le
chaleur ou les rayons de l’arc peuvent réagir avec les vapeurs
refroidir.
du solvant pour produire du phosgéne (gas fortement toxique)
e. Ne jamais toucher simultanément les parties sous tension
ou autres produits irritants.
des porte-électrodes connectés à deux machines à souder
parce que la tension entre les deux pinces peut être le
11. Pour obtenir de plus amples renseignements sur la sûreté,
total de la tension à vide des deux machines.
voir le code “Code for safety in welding and cutting� CSA
f. Si on utilise la machine à souder comme une source de
Standard W 117.2-1974.
courant pour soudage semi-automatique, ces precautions
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
PRÉCAUTIONS DE SÛRETÉ POUR
contre les chutes dans le cas ou on recoit un choc. Ne jamais
LES MACHINES À SOUDER À
enrouler le câble-électrode autour de n’importe quelle partie
du corps.
TRANSFORMATEUR ET À
REDRESSEUR
3. Un coup d’arc peut être plus sévère qu’un coup de soliel,
donc:
a. Utiliser un bon masque avec un verre filtrant approprié 1. Relier à la terre le chassis du poste conformement au code de
ainsi qu’un verre blanc afin de se protéger les yeux du ray- l’électricité et aux recommendations du fabricant. Le dispositif
onnement de l’arc et des projections quand on soude ou de montage ou la piece à souder doit être branché à une
quand on regarde l’arc. bonne mise à la terre.
b. Porter des vêtements convenables afin de protéger la
peau de soudeur et des aides contre le rayonnement de 2. Autant que possible, I’installation et l’entretien du poste seront
l‘arc. effectués par un électricien qualifié.
c. Protéger l’autre personnel travaillant à proximité au
soudage à l’aide d’écrans appropriés et non-inflammables. 3. Avant de faires des travaux à l’interieur de poste, la debranch-
er à l’interrupteur à la boite de fusibles.
4. Des gouttes de laitier en fusion sont émises de l’arc de
soudage. Se protéger avec des vêtements de protection libres 4. Garder tous les couvercles et dispositifs de sûreté à leur
de l’huile, tels que les gants en cuir, chemise épaisse, pan- place.
talons sans revers, et chaussures montantes.
5. Toujours porter des lunettes de sécurité dans la zone de
Mar. �93
soudage. Utiliser des lunettes avec écrans lateraux dans les
zones où l’on pique le laitier.
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.
Product _________________________________________________________________________________
Model Number ___________________________________________________________________________
Code Number or Date Code_________________________________________________________________
Serial Number____________________________________________________________________________
Date Purchased___________________________________________________________________________
Where Purchased_________________________________________________________________________
Whenever you request replacement parts or information on this equipment, always supply the information you
have recorded above. The code number is especially important when identifying the correct replacement parts.
On-Line Product Registration
- Register your machine with Lincoln Electric either via fax or over the Internet.
� For faxing: Complete the form on the back of the warranty statement included in the literature packet
accompanying this machine and fax the form per the instructions printed on it.
� For On-Line Registration: Go to our WEB SITE at www.lincolnelectric.com. Choose “Quick Links� and then
“Product Registration�. Please complete the form and submit your registration.
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.
vi
vi
TABLE OF CONTENTS
Page
Installation .......................................................................................................Section A
Technical Specifications ........................................................................................A-1
Safety Precautions.................................................................................................A-2
Identify and Locate Components ...........................................................................A-2
Select Suitable Location ........................................................................................A-3
Output Connections ...............................................................................................A-3
Work Clamp Installation ..................................................................................A-3
Work Cable Installation ...................................................................................A-3
Gun Installation......................................................................................................A-4
Gas Connection .....................................................................................................A-4
Input Connections..................................................................................................A-5
Line Cord Connection ............................................................................................A-6
230 Volt Input Connection .....................................................................................A-6
208 Volt Input Connection .....................................................................................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
Wire Loading ...................................................................................................B-3
Wire Threading................................................................................................B-4
Making a Weld ................................................................................................B-5
Process Guidelines................................................................................................B-5
Chaning Over to Feed Other Wire Sizes ...............................................................B-6
Welding with GMAW..............................................................................................B-6
Welding with FCAW...............................................................................................B-6
Overload Protection ...............................................................................................B-6
Application Chart ...................................................................................................B-7
________________________________________________________________________
Accessories .....................................................................................................Section C
Accessories ...........................................................................................................C-1
Replacement Parts ................................................................................................C-2
________________________________________________________________________
Maintenance ....................................................................................................Section D
Safety Precautions ................................................................................................D-1
Routine Maintenance.............................................................................................D-1
Gun and Cable Maintenance.................................................................................D-2
Configuration of Components in Wire Feeding System.........................................D-2
Component Replacement Procedures...........................................................D-3, D-4
Gun Handle Parts ..................................................................................................D-5
________________________________________________________________________
Troubleshooting ..............................................................................................Section E
Safety Precautions.................................................................................................E-1
How to Use Troubleshooting Guide.......................................................................E-1
Troubleshooting Guide.............................................................................E-2 thru E-4
________________________________________________________________________
Wiring Diagrams ..............................................................................................Section F
SP-170T Wiring Diagram .......................................................................................F-1
________________________________________________________________________
SP-170T Parts .....................................................................................P469, P202, P189
________________________________________________________________________
A-1 A-1
INSTALLATION
TECHNICAL SPECIFICATIONS � SP-170T
INPUT � SINGLE PHASE ONLY
Standard Voltage/Frequency Input Current
230V/60Hz 20 Amps @ Rated Output
208V/60Hz 22 Amps @ Rated Output
RATED OUTPUT
Duty Cycle Amps Volts at Rated Amperes
20% Duty Cycle @ 230V/60Hz 130 20
20% Duty Cycle @ 208V/60Hz 130 20
OUTPUT
Welding Current Range Maximum Open Circuit Voltage Wire Speed Range
Rated DC Output: 30 � 170 amps 33 50-400IPM (1.3-10.2m/min)
RECOMMENDED INPUT CABLE AND FUSE SIZES
Fuse or
Output Mode Input Voltage Breaker Size Input Amps Power Cord
RATED 230V/60Hz 40 Super Lag 20/22 50 Amp, 250V,
208V/60Hz Three-Prong Plug
(NEMA Type 6-50P)
PHYSICAL DIMENSIONS
Height Width Depth Weight
12.0 in 9.75 in 16.5 in 57 Ibs
305 mm 248 mm 419 mm 25.9 kg
SP-170T
A-2 INSTALLATION A-2
FIGURE A.1
SAFETY PRECAUTIONS
1
Read entire installation section before starting
2
installation.
WARNING WELD
ING
25-12 AMP RA
NGE
5
ELECTRIC SHOCK can kill.
� Only qualified personnel should perform
this installation.
� Only personnel that have read and under-
stood the SP-170T Operating Manual
should install and operate this equipment.
� Machine must be plugged into a receptacle
which is grounded per any national, local
or other applicable electrical codes.
4
� The SP-170T power switch is to be in the
OFF (“O�) position when installing work
cable and gun and when connecting power
3
cord to input power.
IDENTIFY AND LOCATE 6
COMPONENTS
5
If you have not already done so, unpack the SP-170T
from its carton and remove all packing material
around the SP-170T. Remove the following loose
items from the carton (see Figure A.1):
1. SP-170T 7
2. Gun and cable assembly(1)
3. Literature and miscellaneous including:
a) This operating manual
b) A separate .030" (0.8 mm) contact tip
c) Hex key wrench for removal of drive roll.
4. 10 ft (3,0 m) work cable.
5. Work clamp.
6. 2lb. Spool of Super Arc L-56 .025 MIG Wire.
7. Adjustable mixed-Gas Regulator & Hose.
The gun is ready to feed .023" � .025" diameter
(1)
wire.
SP-170T
A-3
A-3 INSTALLATION
6. Wire Feed Gearbox.
SELECT SUITABLE LOCATION
7. Cable Hanger.
Locate the welder in a dry location where there is free
circulation of clean air into the louvers in the back and
8. Thumbscrew.
out the front of the unit. A location that minimizes the
amount of smoke and dirt drawn into the rear louvers
Refer to the Accessories Section for available optional
reduces the chance of dirt accumulation that can block
equipment.
air passages and cause overheating.
Work Clamp Installation
STACKING
Attach the work clamp per the following: Refer to
Figure A-3.
SP-170T’s cannot be stacked.
TILTING
Each machine must be placed on a secure, level sur-
face, either directly or on the recommended cart. The
machine may topple over if this procedure is not fol-
lowed.
OUTPUT CONNECTIONS FIGURE A.3
Refer to Figure A.2. 1. Insert the work cable terminal lug with the larger
hole through the strain relief hole in the work clamp
1. Work Cable Access Hole. as shown above.
2. Gun Cable and Control Lead Access Hole. 2. Fasten securely with the bolt and nut provided.
3. Connector Block.
4. Gun Trigger Lead Connectors.
5. Positive (+) and negative (�) output terminals.
FIGURE A.2
4
E
5
WELDING AMP RANGE
30-70
+
8
SP-170T
-
WELDING AMP RANGE
30-70
6
3 7
1 2
SP-170T
A-4 A-4
INSTALLATION
Work Cable Installation
Refer to Figure A.2.
NOTE: If .035" or .045" (0.9 mm or 1.2 mm)
1. Open the wire feed section door on the right side of Innershield flux-cored wire is to be used, the appropri-
the SP-170T. ate Innershield kit is required. (see ACCESSORIES
section)
2. Pass the end of the work cable that has the termi-
nal lug with the smaller hole through the Work Connecting Gun Cable to the SP-170T
Cable Access Hole (1) in the case front.
1. Refer to Figure A.2. Unplug the machine or turn
3. Route the cable under and around the back of the power switch to the OFF “O� position.
Wire Feed Gearbox (6).
2. Pass the insulated terminals of the gun trigger con-
4. For GMAW Only: Refer to Figure A.2. As deliv- trol leads, one at a time, through the Gun Cable
ered, the machine is connected for positive elec- and Control Lead Access Slot (2) in the case front.
trode polarity. This is the appropriate configuration The leads are to be routed up the inside of the
for the GMAW (MIG) process. To complete installa- case front, behind the gas line.
tion, use the provided wing nut to connect the work
cable’s terminal lug to the negative (�) output ter- 3. Insert the connector on the gun conductor cable
minal (5) located above the Wire Feed Gearbox through the Gun Cable Access Hole (2) in the
(6). Make sure that both wing nuts are tight. SP-170T case front. Make sure the connector is all
the way in the brass connector block to obtain
5. For Innershield Only: Refer to Figure A.4. To wire proper gas flow. If the gun connector will not fully
for negative polarity (required for the Innershield insert, unscrew the thumbscrew on the connector
process), connect the short cable attached to the block a few turns. Rotate the connector so control
connector block (1) to the negative (�) output termi- leads are on the underside and tighten the
nal (2) and the work cable (3) to the positive (+) ter- Thumbscrew on the connector block.
minal (4).
4. Connect the gun trigger control lead terminals to
FIGURE A.4 the two insulated 1/4" (6,4 mm) tab terminal con-
nector bushings located above the “Gun Trigger
Connection� decal in the wire feed section (4).
4 Either lead can go to either connector.
3
CAUTION
2
If the gun trigger switch being used is other than
that supplied, the switch must be a normally open,
1 momentary switch. The terminals of the switch
must be insulated from the welding circuit.
Malfunction of the SP-170T may result if this
switch shorts to the SP-170T welding output cir-
cuit or is common to any electrical circuit other
than the SP-170T trigger circuit.
GAS CONNECTION
GUN INSTALLATION When using the GMAW process, a cylinder of shield-
ing gas, must be obtained. For more information about
As shipped from the factory, the SP-170T gun is ready selecting gas cylinders for use with the SP-170T, refer
to feed .023" � .025" solid wire. If .030"- .035� (0.8 to the ACCESSORIES section.
mm-.9mm) solid wire is to be used, change the con-
tact tip to the appropriate size. If .035� Flux-cored wire
is to be used, change the contact tip and nozzle to the
appropriate type and orient the drive roll to the approri-
ate groove size.
SP-170T
A-5
A-5 INSTALLATION
2. With the cylinder securely installed, remove the
WARNING cylinder cap. Stand to one side away from the out-
let and open the cylinder valve very slightly for an
CYLINDER may explode if dam-
instant. This blows away any dust or dirt which may
aged. Keep cylinder upright and
have accumulated in the valve outlet.
chained to support
� Keep cylinder away from areas
WARNING
where it may be damaged.
� Never lift welder with cylinder
BE SURE TO KEEP YOUR FACE AWAY FROM THE
attached.
VALVE OUTLET WHEN “CRACKING� THE VALVE.
� Never allow welding electrode to
Never stand directly in front of or behind the flow
touch cylinder.
regulator when opening the cylinder valve. Always
� Keep cylinder away from welding stand to one side.
or other live electrical circuits.
3. Attach the flow regulator to the cylinder valve and
tighten the union nut securely with a wrench.
WARNING NOTE: If connecting to 100% CO2 cylinder, insert
regulator adapter (provided with MIG Conversion
BUILDUP OF SHIELDING GAS may
Kit) between regulator and cylinder valve. If adapter
harm health or kill.
is equipped with a plastic washer, be sure it is seat-
� Shut off shielding gas supply ed for connection to the CO2 cylinder.
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 machine 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- 5. Reinstall case side before connecting input power.
port to prevent the cylinder from falling over.
Insulate the cylinder from the work circuit and earth INPUT CONNECTIONS
ground. Refer to Figure A.5. Refer to Figure A.6.
FIGURE A.5 The machine has two input connections, the power
input cable, and the Gas Solenoid Inlet Fitting. Both
are located on the rear of the machine.
Cylinder Valve
Flow Regulator
FIGURE A.6
Gas Hose
GAS SOLENOID
INLET FITTING
POWER INPUT
CABLE
SP-170T
A-6 INSTALLATION A-6
ELECTRICAL INPUT CONNECTION FOR
Line Cord Connection
RATED OUTPUT
A 3 conductor line cord with a 50 amp, 250 volt, three-
prong plug (NEMA Type 6-50P) is factory installed.
WARNING
Connect this plug to a mating grounded receptacle
which is connected to an appropriate power supply
ELECTRIC SHOCK can kill.
per the U.S. National Electric Code and any applicable
local codes. � Disconnect input power by
removing plug from receptacle
before working inside SP-170T.
Grounding
Type 75°C Wire Fuse
� Use only grounded receptacle.
Wire in Conduit, Copper Size
Input Copper Cond. Cond. (Super
� Do not touch electrically “hot�
Voltage Hertz AWG Size AWG Size Lag)
parts inside SP-170T.
208/230 60 8 10 40
� Have qualified personnel do the
CONNECT TO A SYSTEM
maintenance and troubleshooting
GROUNDING WIRE. SEE
work.
THE UNITED STATES
NATIONAL ELECTRICAL
CODE AND/OR LOCAL
CODES FOR OTHER
DETAILS AND MEANS FOR
230 Volt Input Connection
PROPER GROUNDING.
CONNECT TO HOT WIRES
The SP-170T is shipped from the factory connected
OF A THREE-WIRE SINGLE
for 230 volt input power. If the welder has been recon-
PHASE SYSTEM OR TO
ONE PHASE OF A TWO OR nected for 208 volt input power and 230 volt input is
THREE PHASE SYSTEM.
desired, perform the following reconnection instruc-
tions:
WARNING 1. Disconnect welder from input power and remove
case side panel.
This welding machine must be connected to a
power source in accordance with applicable elec-
2. Remove lead marked “H3� from CR1 on the control
trical codes.
P.C. Board.
The National Electrical Code provides standards
3. Remove tape securing H1 to lead sleeving and
for amperage handling capability of supply con-
connect H1 to CR1.
ductors based on duty cycle of the welding
source.
4. Insulate unused H3 lead for 300 volts with electri-
cal tape and secure to lead sleeving.
If there is any question about the installation
meeting applicable electrical code requirements,
5. Reinstall case side before connecting input power.
consult a qualified electrician.
208 Volt Input Connection
1. Disconnect welder from input power and remove
case side.
2. Remove lead marked “H1� from CR1 on the control
P.C. Board.
3. Remove tape securing H3 to lead sleeving and
connect H3 to CR1.
4. Insulate unused H1 lead for 300V with electrical
tape and secure to lead sleeving.
5. Reinstall case side before connecting input power.
SP-170T
B-1 B-1
OPERATION
SAFTEY PRECAUTIONS GENERAL DESCRIPTION
Read entire operation section before The SP-170T is a complete semiautomatic constant
voltage DC portable arc welder. Included is a tap-
operating the SP-170T.
switch controlled, single phase constant voltage trans-
former/rectifier power source and a wire feeder with
welding gun for feeding .023" (0.6 mm) through .030"
WARNING (0.8 mm) solid steel electrode. Optional kits are avail-
able for .035" (0.9 mm) and .045" (1.2 mm)
ELECTRIC SHOCK can kill. Innershield® NR-211-MP.
� Do not touch electrically live
parts or electrode with skin or wet It is ideally suited for individuals having access to 230
clothing. Insulate yourself from or 208 volt 60 Hz AC input power and want the ease
work and ground. of use, quality and dependability of both gas metal arc
welding or GMAW (also known as MIG welding) and
� Always wear dry insulating
the Innershield® process (self-shielded flux-cored or
gloves.
FCAW). A convenient chart is mounted inside the wire
feed section door for setting welding procedures for 24
gauge (.60 mm) through 5/16" (8.0 mm) mild steel.
FUMES AND GASES can be The machine is rugged and reliable and has designed
dangerous. for dependable service and long life.
� Keep your head out of fumes.
� Use ventilation or exhaust to
RECOMMENDED PROCESSES
remove fumes from breathing
zone. The SP-170T can be used for welding mild steel using
the GMAW, single pass, process which requires a
supply of shielding gas or it can be used for the self-
WELDING SPARKS can shielded, Innershield® process (FCAW).
cause fire or explosion.
� Keep flammable material away.
OPERATIONAL FEATURES AND
� Do not weld on closed containers. CONTROLS
The SP-170T has the following controls as standard:
Power ON/OFF Switch, Voltage Control, Wire Speed
Control, Trigger Switch, and a Circuit Breaker.
ARC RAYS can burn eyes
and skin.
DESIGN FEATURES AND
� Wear eye, ear and body protec- ADVANTAGES
tion.
G Reconnect table for 230 volt or 208 volt single
phase 60 Hz input power.
G “Cold electrode� until gun trigger is pressed for an
added measure of safety.
G Overload protection � incorporates both a thermo-
Observe all safety information throughout
stat and a circuit breaker.
this manual.
G Quality wire drive with electronic overload protec-
tion.
G “Quick Release� idle roll pressure arm is easily
adjusted.
SP-170T
B-2 B-2
OPERATION
G Reversible, dual groove drive roll, shipped ready See Figure B.1b.
to feed .023"/.025" (0.6 mm) diameter wire. The
drive roll is easily reversed to feed .030" (0.8 mm) 4. Circuit Breaker � Protects machine from damage if
diameter solid wire and .035" (0.9 mm) flux-cored maximum output is exceeded. Button will extend
diameter wire. Optional drive roll included in .045" out when tripped (Manual reset).
(1.2 mm) Innershield® welding kit must be installed
to feed .045" (1.2 mm) flux-cored wire. 5. Gun Trigger - Activates welding output, wire feed,
and gas solenoid operation. Releasing the trigger
G No external shielding gas is required when used
deactivates welding and simultaneously activates
with Lincoln .035� (0,9 mm) Innershield NR®-211-
the “burnback� function so that the welding wire
MP electrode.
does not stick in the weld puddle.
G Spindle accommodates both 8 in. (200 mm) diame-
ter and 4 in. (100 mm) diameter spools of wire. FIGURE B.1a
WELDING CAPABILITY
The SP-170T is rated at 130 amps, 20 volts, at 20% 3
duty cycle on a ten minute basis. It is capable of high- 1
er output currents at lower duty cycles. .
2
LIMITATIONS SP-170 T
Arc Gouging cannot be performed with the SP-170T.
The SP-170T is not recommended for pipe thawing or FIGURE B.1b
TIG welding.
4
CONTROLS AND SETTINGS
See Figure B.1a. +
-
1. Power ON/OFF Switch �
When the power is on the
fan motor will run and air will
be exhausted out the louvers
in the front of the machine.
ON
The welding output and wire
feeder remain off until the
gun trigger is pressed.
2. Voltage Control � A 5-posi- OFF
tion tap selector switch gives 5
full range adjustment of
power source output voltage.
Do not switch while welding.
ARC VOLTS
3. Wire Speed Control �
Controls the wire feed speed
from 50 � 400 in/min (1.2 �
10.2 m/min). The control can
WIRE SPEED
be preset on the dial to the
setting specified on the SP-
170T Application Chart
located on the inside of the
wire feed section door
SP-170T
B-3
B-3 OPERATION
To use 4� (100 mm) diameter spools, the 2� (50 mm)
WELDING OPERATIONS diameter spindle must be removed (See Figure B.3).
Remove the wing nut and spacer at the end of the
SEQUENCE OF OPERATION shaft and remove the outside plastic wire spool spin-
dle. The spindle can be stored in the wire feed com-
partment. A 4� (100 mm) diameter spool is mounted
Wire Loading
directly on the 5/8� (16 mm) diameter shaft and held in
Refer to Figure B.2 and B.3.
place with the previously removed hardware. Also
The machine power switch should be turned to the
make certain the start end of the wire, which may pro-
OFF (“O�) position before working inside the wire feed
trude through the side of the spool does not contact
enclosure.
any metallic case parts.
The machine is shipped from the factory ready to feed
8� (200 mm) diameter spools [2.2� (56 mm) max.
FIGURE B.3
width]. These spools fit on a 2� (50 mm) diameter
spindle that has a built-in adjustable friction brake to
prevent overrun of the spool and excess slack in the
wire.
Wire Spindle Shaft
4" Wire Spool
Note:When loading and removing the 8� Spools make
sure that the wing nut (inside the wire spool spindle
hub) is turned 90° from the wire spool spindle locking
tab. If the wing nut is positioned in line with the locking
tab, the tab cannot be depressed to load or unload
Wing Nut
FIGURE B.2
and Spacer
To wire drive
the wire spool.
8� Wire Spool
Wire Spool Spindle
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 will rotate clock-
wise when wire is dereeled.
Load an 8� (200 mm) diameter spool on the wire spool
spindle shown in Figure B.2.
SP-170T
OPERATION
B-4 B-4
FIGURE B.4
Note: The brake should be adjusted with a spool of
wire installed. When properly adjusted it should
move freely but not coast.
Friction Brake Adjustments
1. With wire spool installed, check free movement and
coast of the spool.
2. To tighten the brake turn the wing nut clockwise in
2
1/4 turn increments until coasting stops.
Wire from spool.
3. To loosen the brake turn the wing nut counter-
clockwise in 1/4 turn increments until the wire spool
1
moves freely without coasting.
4
The Wire Drive Feed Roll
Wire Threading
3
can accommodate two wire
Refer to Figure B.4 sizes by flipping the wire
5
drive feed roll over.
1. Release the Spring Loaded Pressure Arm (1)
rotate the Idle Roll Arm (2) away from the Wire
Feed Drive Roll (3). Ensure that the groove size in
WARNING
the feeding position on the drive roll matches the
wire size being used. See Maintenance section for
When inching the welding wire, the drive rolls, the
further information.
gun connector block and the gun contact tip are
electrically energized relative to work and ground
2. Carefully detach the end of the wire from the
and remain energized for several seconds after
spool. To prevent the spool from unwinding, main-
the gun trigger is released.
tain tension on the wire until after step 5.
3. Cut the bent portion of wire off and straighten the 8. Turn the SP-170T ON (“I�).
first 4� (100 mm).
9. Straighten the gun cable assembly.
4. Thread the wire through the ingoing guide tube
(4), over the drive roll (3), and into the outgoing 10. Depress the gun trigger switch and feed welding
guide tube (5). wire through the gun and cable. (Point gun away
from yourself and others while feeding wire.)
5. Close the idle roll arm and latch the spring loaded Release gun trigger after wire appears at end of
pressure arm (2) in place. Rotate the spool coun- gun.
terclockwise if required to take up extra slack in
the wire. 11. Turn the SP-170T OFF (“O�).
6. The idle roll pressure adjustment wing nut is nor- 12. Replace contact tip and gas nozzle.
mally set for mid-position on the pressure arm
FIGURE B.5
threads. If feeding problems occur because the
wire is flattened excessively, turn the pressure
adjustment counter-clockwise to reduce distortion
of the wire. Slightly less pressure may be required
when using 0.023 � 0.025� (0,6 mm) wire. If the
6. drive roll slips while feeding wire, the pressure Gun Handle
should be increased until the wire feeds properly.
Gas Diffuser/
7. Refer to Figure B.5. Remove gas nozzle and con- Contact Tip
tact tip from end of gun.
Gas Nozzle
13. Refer to Figure B-6. Cut the wire off 3/8� � 1/2� (10
� 13 mm) from the end of the tip. The SP-170T is
now ready to weld.
SP-170T
B-5
OPERATION
B-5
FIGURE B.7
FIGURE B.6
Contact Tip
GUN CABLE
Wire Electrode
3/8"� 1/2"(10-13mm) Contact
Tip to Work Distance(CTWD)
WORKPIECE
ARC
Making A Weld
1. See “Process Guidelines� in this section for selec- WORK CLAMP
10. When no more welding is to be done, close valve
tion of welding wire and shielding gas and for
on gas cylinder (if used), momentarily operate gun
range of metal thicknesses that can be welded.
trigger to release gas pressure, and turn off the
SP-170T.
2. See the Application chart on the inside of the wire
feed compartment door for information on setting
the SP-170T controls. Refer to Table B.1 for alu-
Cleaning Tip And Nozzle
minum and stainless wire.
Clean the contact tip and nozzle to avoid arc bridging
between the nozzle and contact tip which can result in
3. Set the Voltage (“Vâ€?) and Wire Speed (“olo’â??) con-
a shorted nozzle, poor welds and an overheated gun.
trols to the settings suggested for the welding wire
Hint: Anti-stick spray or gel, available from a welding
and base metal thickness being used, refer to
supply distributor, may reduce buildup and aid in spat-
3. Applications chart on the inside of the wire drive
ter removal.
compartment door.
4. Check that the polarity is correct for the welding
PROCESS GUIDELINES
wire being used and that the gas supply, if
required, is turned on.
The SP-170T can be used for welding mild steel using
the GMAW, single pass, process which requires a
5. When using Innershield electrode, remove the gas
supply of shielding gas or it can be used for the self-
nozzle and install the gasless nozzle. This will
shielded, Innershield® process (FCAW).
improve visibility of the arc and protect the gas dif-
fuser from weld spatter. Refer to the MAINTE-
The recommended gases and electrodes for GMAW
NANCE section for details on nozzle replacement.
are welding grade CO2 gas or an argon-CO2 blended
gas (75 to 80% argon and 25 to 20% CO2) and .025"
6. Refer to Figure B.7. Connect work clamp to metal
(0.6 mm) diameter Lincoln Super Arc L-56 mild-steel
to be welded. Work clamp must make good elec-
welding wire. The blended gas is recommended for
trical contact to the workpiece. The workpiece
welding on heavier steel, 14 gauge (2.0 mm), for
must also be grounded as stated in “Arc Welding
example.
Safety Precautions� in the beginning of this manu-
al.
The recommended electrode for the self-shielded
process is Lincoln Innershield® NR-211-MP. This elec-
7. Position gun over joint. End of wire may be lightly
trode is available as .035" (0.9 mm) and .045" (1.2
touching the work.
mm) NR-211-MP for all position welding of 18 gauge
(1.2 mm) through 5/16" (8.0 mm) steel. Thickness of
8. Lower welding helmet, close gun trigger, and
1/4" (6.4 mm) and 5/16" (7.9 mm) require multiple
begin welding. Hold the gun so the contact tip to
passes. both wire sizes can also be used for the weld-
work distance is about 3/8 inch (10 mm).
ing of galvanized coated sheet metal.
9. To stop welding, release the gun trigger and then
pull the gun away from the work after the arc goes
out.
SP-170T
B-6 B-6
OPERATION
The SP-170T is suitable for .035" aluminum wire and � 20 cubic ft per hour (CFH) (7 � 10 I/min) [use 20 �
.023"� .035" stainless wire. Refer to Table B.1 for rec- 25 CFH (10 � 12 I/min) when welding out of position
ommended procedure settings. (Requires K586-1 or in a drafty location.
Deluxe Adjustable kit and K664-2 Aluminum -
Stainless Feeding Kit.) 3. Keep the cylinder valve closed, except when using
the SP-170T. When finished welding:
a) Close the cylinder valve to stop gas flow.
CAUTION
b) Depress the gun trigger briefly to release the
pressure in the gas hose.
It is important when changing between welding
with steel wire and aluminum to exchange feeding
c) Turn off the SP-170T.
components due to the lubricant applied to steel
wire. Failure to do so may result in contaminated
welds when welding aluminum.
------------------------------------------------------------------------
WELDING WITH FCAW (Innershield)
TABLE B.1 � SP-170T
WELDING PROCEDURES
When using the FCAW process, the correct drive roll
Voltage/Wire Speed
Shielding and electrode polarity must be used. See Work Cable
Process Welding Wire Gas 22 ga 16 ga 12 ga 1/8� 3/16� 1/4�
Installation in INSTALLATION section for changing the
.035 Dia(0.9mm 100% Argon A-4.5 B-6.5 D-8.5 D-10 E-10 E-10*
polarity.
4043 Aluminum
Wire
MIG DC+
Innershield welding kits K549-1 (for .035") and K549-2
18 ga 16 ga 14 ga 12 ga 10 ga
(for .045") are also available.
.030 Dia 98% Argon/ A-2 B-3 C-5 D-7 E-10
308L Stainless 2% Oxygen
Steel Wire
NOTE: * Test assembly preheat to 250°F.
OVERLOAD PROTECTION
CHANGING MACHINE OVER TO Output Overload
FEED OTHER WIRE SIZES The SP-170T is equipped with a circuit breaker which
protects the machine from damage if a severe over-
load occurs. The circuit breaker button will extend out
The SP-170T is shipped from the factory ready to feed
when tripped. The circuit breaker must be manually
0.023� � .025" (0.9 mm) diameter wire. To operate the
reset.
SP-170T with other sizes of wire, it may be necessary
to change the contact tip, drive roll, and the gun liner
configuration. Refer to the MAINTENANCE section,
Thermal Protection
for component configuration and placement.
The SP-170T has a rated output duty cycle of 20%. If
the duty cycle is exceeded, a thermal protector will
shut off the output until the machine cools to a reason-
WELDING WITH GMAW (MIG) able operating temperature. This is an automatic func-
tion of the SP-170T and does not require user inter-
vention. The fan continues to run during cooling.
Shielding Gas
When using the GMAW process, install the gas regu-
Electronic Wire Drive Motor Protection
lator and hose. If using 100% CO2 a CO2 adapter is
The SP-170T has built-in protection for wire drive
required, sold separately.
motor overload.
1. For CO2, open the cylinder very slowly. For argon-
mixed gas, open cylinder valve slowly a fraction of
a turn. When the cylinder pressure gauge pointer
stops moving, open the valve fully.
2. If using a regulator with an adjustable flow meter,
close the gun trigger and adjust the flow to give 15
SP-170T
B-7 B-7
APPLICATION CHART
SP-170T
C-1
ACCESSORIES
C-1
5. K520 Utility Cart � Designed to transport the
OPTIONAL ACCESSORIES
Lincoln family of small welders. Has provisions for
mounting a single gas cylinder. Has front casters
1. K549-1 .035" (0.9 mm) Innershield® Welding Kit
and large rear wheels. Handle height is easily
� Includes a contact tip, a gasless nozzle and a
adjustable. Bottom tray provided for tools and
.030/.035" (.8/.9 mm) cable liner to permit the
accessories. Easy assembly required; takes less
Magnumâ„? 100L gun and cable to use .035" (0.9
than 15 minutes.
mm) diameter flux-cored electrode. The fitting on
the end of the liner is stenciled with the maximum
6. K586-1 Deluxe Adjustable Gas Regulator &
rated wire size (.045"/1.2 mm). Also included is a
10 lb.(4.5 kg.) spool of .035" (0.9 mm) Innershield® Hose Kit
Accommodates CO2 , Argon or Argon-blend gas
NR-211-MP.
cylinders. Includes a cylinder pressure gauge and
See “Innershield (FCAW) Conversion� in this sec- 4.3 ft. (1.3m) gas hose.
tion for installation instructions and MAINTE-
7. K697-2 Power Cord Extension � Extension 230V
NANCE section for proper feeding component con-
power cord (20�/6.1m) allows extra convenience
figuration and installation.
when work is located some distance away from
power receptacle.
2. K549-2 .045" (1.2 mm) Innershield® Welding Kit
� Includes a contact tip, a gasless nozzle and a 8. K667-1 230 Volt 50 Amp Receptacle � For pro-
.035/.045" (0.9/1.2 mm) cable liner to permit the viding power for your SP-170T at your welding loca-
Magnum� 100L gun and cable to use .045" (1.2 tion. NEMA standard 6-50 R receptacle. See “Line
mm) diameter flux-cored electrode. The fitting on Cord Connection� in INSTALLATION section for
the end of the liner is stenciled with the maximum recommended wire size.
rated wire size (.045"/1.2 mm). Also included is a
10 lb.(4.5 kg.) spool of .045" (1.2 mm) Innershield® This regulator comes standard with a 4.5 foot hose
(1)
NR-211-MP and a knurled drive roll. with the SP-170T.
See “Innershield (FCAW) Conversion� in this sec-
tion for installation instructions and MAINTE-
NANCE section for proper feeding component con-
figuration and installation.
3. K664-2 Aluminum Feeding Kit � This kit is rec-
ommended for welding with .035 Aluminum wire.
Included with this kit are a drive roll, cable liner and
.035 contact tip. 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.
See Maintenance section for instructions on
installing drive roll, cable liner, contact tip and their
proper configuration.
4. KP665-045C Drive Roll � Optional � Knurled
drive roll for feeding .035 - .045� (0.9 - 1.2 mm)
diameter flux-cored electrode.
SP-170T
C-2 C-2
ACCESSORIES
INNERSHIELD (FCAW) REPLACEMENT PARTS
CONVERSION
Complete Gun and Cable Assembly
(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 or K549-2 Innershield Kits include all the nec- KP2039-1
essary accessories for this conversion and are provid-
Contact Tip .030� (0.8 mm)
ed for this purpose. The following conversions should
KP2039-2
be made using the contents of this kit:
Contact Tip .035� (0.9 mm)
1. Change the output polarity to DC(�). See “Work KP2039-3
Cable Installation� in Installation section for details.
Contact Tip .045� (1.2 mm)
KP2039-4B1
2. Install proper drive roll for the wire size selected.
See “Changing Drive Roll� in Maintenance section Contact Tip-Tapered .025� (0.6 mm)
for details. KP2052-1
Contact Tip-Tapered .030� (0.8 mm)
3. Install the proper gun liner(*)and tip for the wire
KP2052-2
size selected. See “Component Replacement� in
Maintenance section for details. Contact Tip-Tapered .035� (0.9 mm)
KP2052-3
4. Remove gas nozzle (if installed) and install gasless
Contact Tip-Tapered .045� (1.2mm)
nozzle. To remove, simply unscrew.
KP2052-4B1
5. Load wire into machine and thread into gun and Liner .030/.035� (0.8/0.9 mm)
cable per “Welding Wire Loading� section. KP1937-3
Liner .035/.045� (0.9/1.2 mm)
KP1937-1
* The factory installed gun liner will feed .025-.035
(0.6-0.9mm)
Gas Diffuser
KP2040-1
Gas Nozzle
KP1938-1
Gas Nozzle-Tip Recessed 3/8� (9.5 mm)
Opening I.D.
KP1942-1
Gas Nozzle-Tip Recessed 1/2� (12.7 mm)
Opening I.D.
KP1942-2
Gas Nozzle-Tip Recessed 5/8� (15.9 mm)
Opening I.D.
KP1942-3
Spot Welding Nozzle
KP1956-1
Gasless Nozzle (Innershield Only)
KP1939-1
SP-170T
D-1
MAINTENANCE
D-1
MAINTENANCE
SAFETY PRECAUTIONS
WARNING
ELECTRIC SHOCK can kill.
� Disconnect input power by removing
plug from receptacle before working
inside SP-170T. Use only grounded
receptacle. Do not touch electrically
“hot� parts inside SP-170T.
� Have qualified personnel do the mainte-
nance and trouble shooting work.
ROUTINE MAINTENANCE
POWER SOURCE COMPARTMENT
In extremely dusty locations, dirt may clog the air passages
causing the welder to run hot. Blow dirt out of the welder with
low pressure air at regular intervals to eliminate excessive dirt
and dust build-up on interval parts.
WIRE FEED COMPARTMENT
1. When necessary, vacuum accumulated dirt from gearbox
and wire feed section.
2. Occasionally inspect the incoming guide tube and clean
inside diameter if necessary.
3. Motor and gearbox have lifetime lubrication and require no
maintenance.
FAN MOTOR
Has lifetime lubrication � requires no maintenance.
WIRE REEL SPINDLE
Requires no maintenance. Do not lubricate shaft.
SP-170T
D-2 D-2
MAINTENANCE
2. Replace worn contact tips as required. A variable
GUN AND CABLE
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 KP2039-1B1 (Installed) KP1937-3 KP665-035
SP-170T� .025� (0.6mm) .030-.035� 2 Smooth grooves
(0.8-0.9mm) Small .023-.025 (0.6mm)
Large .030� (0.8mm)
K549-1 .035� (0.9mm) KP2039-3B1 KP1937-3 Use Large groove of KP665-035
Innershield Welding Kit .035� (0.9mm) .035 (0.9mm)
K549-2 .045� (1.2mm) KP2039-4B1 KP1937-1 KP665-045C - Use Large groove
Innershield Welding Kit .045� (1.2mm) .045� (1.2mm)
K664-2 .035 (0.9mm) KP2078-1B1 KP1959-1 M19631
Aluminum or Stainless Kit* .035A (0.9mm) .035� (0.9mm)
� If .030 (0.8mm) Solid wire feeding is desired use the KP2039-2B1 Contact Tip shipped loose with your SP-170T.
* 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.
SP-170T
D-3
MAINTENANCE
D-3
8. Push a length of straightened welding wire through
COMPONENT
the wire feeder guide tubes and adjust the position
REPLACEMENT of the drive roll so that the groove is centered on
PROCEDURES the wire. Make certain the set screw is located on
the flat portion of the shaft and tighten.
CHANGING THE CONTACT TIP
FIGURE D.1
1. Refer to Figure D.2. Remove the gas nozzle from
the gun by unscrewing counter-clockwise.
2. Remove the existing contact tip from the gun by
unscrewing counter-clockwise.
3. Insert and hand tighten desired contact tip.
3
4. Replace gas nozzle.
2
CHANGING DRIVE ROLL
The drive roll Item 1, has two grooves; one for .023" �
.025" (0.6 mm) solid steel electrode and a larger
1
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.
If .030"/.035" (0.8/0.9 mm) wire is to be used, the
drive roll must be reversed as follows:
1. Connect the machine to its rated input power per
instructions in Installation section.
2. Release the spring-loaded idle arm tensioner,Item 2, and
lift the idle roll arm, Item 3, away from the drive roll, Item
1. (See Figure D.1)
3. Turn the power switch to ON (marked “I�).
4. Set the wire speed to minimum and jog the drive
unit with the trigger switch until the drive roll set
screw is facing up.
CAUTION
When inching the welding wire, the drive rolls,
gun connector block, and gun contact tip are
energized relative to work and ground and remain
energized for several seconds after the gun trig-
ger is released.
5. Turn the power switch to OFF (marked “O�).
6. Loosen the drive roll set screw with the 5/64" (2.0
mm) hex wrench supplied.
7. Remove the drive roll, flip over and reinstall with the
.030/.035" (0.8/0.9 mm) groove (the larger groove)
closest to the gearbox.
SP-170T
D-4 MAINTENANCE D-4
1-1/4 (31.8 mm)
Liner Trim Length
Gas Diffuser
Gas Nozzle or
Gasless Nozzle
Set Screw Brass Cable
Connector
Liner Assembly
(Liner bushing to be sealed tight
against brass cable connector)
FIGURE D.2
Liner trim length
CHANGING LINER 5. Insert a new untrimmed liner into the connector end
of the cable. Be sure the liner bushing is stenciled
NOTICE: The variation in cable lengths prevents the appropriately for the wire size being used.
interchangeability of liners. Once a liner has been cut
for a particular gun, it should not be installed in anoth- 6. Fully seat the liner bushing into the connector.
er gun unless it can meet the liner cutoff length Tighten the set screw on the brass cable connector.
requirement. Refer to Figure D.2. At this time, the gas diffuser should not be installed
onto the end of the gun tube.
1. Remove the gas nozzle from the gun by unscrew-
ing counter-clockwise. 7. With the gas nozzle and diffuser removed from the
gun tube, be sure the cable is straight, and then
2. Remove the existing contact tip from the gun by trim the liner to the length shown in the Figure D.2.
unscrewing counter-clockwise. Remove any burrs from the end of the liner.
3. Remove the gas diffuser from the gun tube by 8. Screw the gas diffuser onto the end of the gun tube
unscrewing counter-clockwise. and securely tighten.
4. Lay the gun and cable out straight on a flat surface. 9. Replace the contact tip and nozzle.
Loosen the set screw located in the brass connec-
tor at the wire feeder end of the cable. Pull the liner
out of the cable.
SP-170T
D-5
MAINTENANCE
D-5
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-170T
E-1
TROUBLESHOOTING
E-1
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 help you Step 3. RECOMMENDED COURSE OF ACTION
locate and repair possible machine malfunctions. This column provides a course of action for the
Simply follow the three-step procedure listed below. Possible Cause, generally it states to contact your
local Lincoln Authorized Field Service Facility.
Step 1. LOCATE PROBLEM (SYMPTOM).
Look under the column labeled “PROBLEM (SYMP- If you do not understand or are unable to perform the
TOMS)�. This column describes possible symptoms Recommended Course of Action safely, contact your
that the machine may exhibit. Find the listing that local Lincoln Authorized Field Service Facility.
best describes the symptom that the machine is
exhibiting.
Step 2. POSSIBLE CAUSE.
The second column labeled “POSSIBLE CAUSE� lists
the obvious external possibilities that may contribute
to the machine symptom.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
SP-170T
E-2 TROUBLESHOOTING E-2
Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS POSSIBLE RECOMMENDED
(SYMPTOMS) CAUSE COURSE OF ACTION
OUTPUT PROBLEMS
Major physical or electrical damage None
is evident. Contact your local 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. See
does NOT operate. Installation section, “Electrical
Connections�.
2. Make certain that power switch
is in the ON position.
Contact your local Lincoln
Authorized Field Service Facility.
3. Make sure circuit breaker is
reset.
No wire feed, weld output or gas 1. The thermostat may be tripped
flow when gun trigger is pulled. Fan due to overheating. Let machine
operates normally. cool. Weld at lower duty cycle.
2. Check for obstructions in air
flow.
3. Check Gun Trigger connections.
See Installation section.
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-170T
E-3
TROUBLESHOOTING
E-3
Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS POSSIBLE RECOMMENDED
(SYMPTOMS) CAUSE 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 make sure that the correct drive
machine has correct open circuit rolls are installed in the
voltage (33 vcd maximum) � weld Contact your local Lincoln
machine.
output. Authorized Field Service Facility.
2. Check for clogged cable liner or
contact tip.
3. Check for proper size cable liner
and contact tip.
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. Contact your local Lincoln
output and fan operate normally. Authorized Field Service Facility.
2. Check gun connection to
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-170T
E-4 E-4
TROUBLESHOOTING
Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS POSSIBLE RECOMMENDED
(SYMPTOMS) CAUSE COURSE OF ACTION
WELDING PROBLEMS
Arc is unstable � Poor starting 1. Check for correct input voltage
to machine. See Installation sec-
tion, “Electrical Input
Connections�.
2. Check for proper electrode
polarity for process.
3. Check gun tip for wear or dam-
age and proper size � Replace.
Contact your local Lincoln
4. Check for proper gas and flow Authorized Field Service Facility.
rate for process. (For MIG only.)
5. Check work cable for loose or
faulty connections.
6. Check gun for damage or
breaks.
7. Check for proper drive roll orien-
tation and alignment.
8. Check liner for proper size.
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-170T
F-1
SP-170T WIRING DIAGRAM: Code10981
SP-170T
WIRING DIAGRAMS
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The
specific diagram for a particular code is pasted inside the machine on one of the enclosure panels.
F-1
NOTES
SP-170T
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
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