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IM759
WELD-PAK 3200HD May, 2002
For use with machine Code Number:10932
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:
OPERATORS 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 © 2002 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.
2.d.3. Do not place your body between the electrode and
Do not attempt to override the governor or
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
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
iii iii
SAFETY
CYLINDER may explode
WELDING SPARKS can
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
5. Toujours porter des lunettes de sécurité dans la zone de
PRÉCAUTIONS DE SÛRETÉ soudage. Utiliser des lunettes avec écrans lateraux dans les
zones où l’on pique le laitier.
Pour votre propre protection lire et observer toutes les instruc-
tions et les précautions de sûreté specifiques qui parraissent
6. Eloigner les matériaux inflammables ou les recouvrir afin de
dans ce manuel aussi bien que les précautions de sûreté
prévenir tout risque d’incendie dû aux étincelles.
générales suivantes:
7. Quand on ne soude pas, poser la pince à une endroit isolé de
Sûreté Pour Soudage A L’Arc
la masse. Un court-circuit accidental peut provoquer un
1. Protegez-vous contre la secousse électrique:
échauffement et un risque d’incendie.
a. Les circuits à l’électrode et à la piéce sont sous tension
8. S’assurer que la masse est connectée le plus prés possible
quand la machine à souder est en marche. Eviter toujours
de la zone de travail qu’il est pratique de le faire. Si on place
tout contact entre les parties sous tension et la peau nue
la masse sur la charpente de la construction ou d’autres
ou les vétements mouillés. Porter des gants secs et sans
endroits éloignés de la zone de travail, on augmente le risque
trous pour isoler les mains.
de voir passer le courant de soudage par les chaines de lev-
b. Faire trés attention de bien s’isoler de la masse quand on
age, câbles de grue, ou autres circuits. Cela peut provoquer
soude dans des endroits humides, ou sur un plancher
des risques d’incendie ou d’echauffement des chaines et des
metallique ou des grilles metalliques, principalement dans
câbles jusqu’� ce qu’ils se rompent.
les positions assis ou couché pour lesquelles une
grande partie du corps peut être en contact avec la
9. Assurer une ventilation suffisante dans la zone de soudage.
masse.
Ceci est particuliérement important pour le soudage de tôles
c. Maintenir le porte-électrode, la pince de masse, le câble
galvanisées plombées, ou cadmiées ou tout autre métal qui
de soudage et la machine à souder en bon et sûr état
produit des fumeés toxiques.
defonctionnement.
d.Ne jamais plonger le porte-électrode dans l’eau pour le
10. Ne pas souder en présence de vapeurs de chlore provenant
refroidir.
d’opérations de dégraissage, nettoyage ou pistolage. La
e. Ne jamais toucher simultanément les parties sous tension
chaleur ou les rayons de l’arc peuvent réagir avec les
des porte-électrodes connectés à deux machines à soud-
vapeurs du solvant pour produire du phosgéne (gas forte-
er parce que la tension entre les deux pinces peut être le
ment toxique) ou autres produits irritants.
total de la tension à vide des deux machines.
f. Si on utilise la machine à souder comme une source de
11. Pour obtenir de plus amples renseignements sur la sûreté,
courant pour soudage semi-automatique, ces precautions
voir le code “Code for safety in welding and cutting� CSA
pour le porte-électrode s’applicuent aussi au pistolet de
Standard W 117.2-1974.
soudage.
2. Dans le cas de travail au dessus du niveau du sol, se pro-
téger contre les chutes dans le cas ou on recoit un choc. Ne
jamais enrouler le câble-électrode autour de n’importe quelle
PRÉCAUTIONS DE SÛRETÉ POUR
partie du corps.
LES MACHINES À SOUDER À
3. Un coup d’arc peut être plus sévère qu’un coup de soliel,
TRANSFORMATEUR ET À
donc:
REDRESSEUR
a. Utiliser un bon masque avec un verre filtrant approprié
ainsi qu’un verre blanc afin de se protéger les yeux du
rayonnement de l’arc et des projections quand on soude 1. Relier à la terre le chassis du poste conformement au code
ou quand on regarde l’arc. de l’électricité et aux recommendations du fabricant. Le dis-
b. Porter des vêtements convenables afin de protéger la positif de montage ou la piece à souder doit être branché Ã
peau de soudeur et des aides contre le rayonnement de une bonne mise à la terre.
l‘arc.
c. Protéger l’autre personnel travaillant à proximité au 2. Autant que possible, I’installation et l’entretien du poste
soudage à l’aide d’écrans appropriés et non-inflamma- seront effectués par un électricien qualifié.
bles.
3. Avant de faires des travaux à l’interieur de poste, la
4. Des gouttes de laitier en fusion sont émises de l’arc de debrancher 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, 4. Garder tous les couvercles et dispositifs de sûreté à leur
pantalons sans revers, et chaussures montantes. place.
Mar. �93
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.
vi
MASTER TABLE OF CONTENTS FOR ALL SECTIONS
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-6
Code Requirements ..............................................................................................A-6
Undercarriage Assembly .......................................................................................A-7
________________________________________________________________________
Operation .........................................................................................................Section B
Safety Precautions ................................................................................................B-1
General Description ...............................................................................................B-1
Design Features..............................................................................................B-1,B-2
Welding Capability .................................................................................................B-2
Limitations..............................................................................................................B-2
Controls and Settings ............................................................................................B-2
Welding Operations ...............................................................................................B-3
Overload Protection ...............................................................................................B-6
Learning to Weld....................................................................................................B-7
Application Chart .................................................................................................B-18
________________________________________________________________________
Accessories .....................................................................................................Section C
Optional Accessories.............................................................................................C-1
Replacement Parts ................................................................................................C-2
________________________________________________________________________
Maintenance ....................................................................................................Section D
Safety Precautions ................................................................................................D-1
Items Requiring No Maintenance ..........................................................................D-1
Routine Maintenance.............................................................................................D-1
Gun and Cable Maintenance.................................................................................D-2
Component Replacement Procedures ..................................................................D-3
Changing Liner ......................................................................................................D-4
Gun Handle Parts ..................................................................................................D-4
________________________________________________________________________
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-135T Wiring Diagram .......................................................................................F-1
________________________________________________________________________
Parts Lists .....................................................................................P442 Series, P202-E
________________________________________________________________________
A-1 A-1
INSTALLATION
TECHNICAL SPECIFICATIONS � WELD-PAK 3200HD
INPUT � SINGLE PHASE ONLY
Standard Voltage/Frequency Input Current
120V/60Hz 20 Amps - Rated Output
RATED OUTPUT
Duty Cycle Amps Volts at Rated Amperes
20% Duty Cycle 90 19
OUTPUT
Welding Current Range Maximum-Open Circuit Voltage 50 - 300 in/min
25-135 Amps 29V (1.3 - 7.6 m/min)
RECOMMENDED INPUT CABLE AND FUSE SIZES
Fuse or
Output Mode Input Voltage Breaker Size1 Input Amps Power Cord Extension Cord
Three Conductor
#14 AWG
(2.1 mm2) or Larger
Up to 25 Ft. (7.6 mm)
RATED 120V/60Hz 20 Amp 20 15 Amp, 125V,
Three Prong Plug Three Conductor
(NEMA Type 5-15P) #12 AWG
(3.3 mm2) or Larger
Up to 50 Ft. (15.2 mm)
PHYSICAL DIMENSIONS
Height Width Depth Weight
12.0 in 9.75 in 16.5 in 48 Ibs
305 mm 248 mm 419 mm 21.8 kg
1If connected to a circuit protected by fuses use Time Delay Fuse marked “D�.
WELD PAK 3200HD
A-2 A-2
INSTALLATION
Read entire installation section before starting
11. Undercarriage:
installation.
a) Base
SAFETY PRECAUTIONS b) Gas bottle support base
c) (2) Gas bottle support brackets
WARNING
For available options and accessories refer to the
ELECTRIC SHOCK can kill. Accessories Section of this manual.
� Only qualified personnel should perform
this installation. As shipped from the factory, the WELD-PAK
1)
3200HD gun liner is ready to feed .023� (0.6 mm) -
� Only personnel that have read and under-
stood the WELD-PAK 3200 HD Operating .035 (0.9 mm) wire. The contact tip is sized for .023�-
Manual should install and operate this
.025� (0.6 mm) wire feeding.
equipment.
� Machine must be plugged into a receptacle
FIGURE A.1
which is grounded per any national, local
or other applicable electrical codes.
� The WELD-PAK 3200 HD power switch is
2
to be in the OFF (“O�) position when
1
installing work cable and gun and when
connecting power cord to input power.
IDENTIFY AND LOCATE
COMPONENTS
If you have not already done so, unpack the WELD-
PAK 3200HD from its carton and remove all packing
material around the WELD-PAK 3200HD. Remove the 4
following loose items from the carton (see Figure A.1):
1. WELD-PAK 3200HD
6
2. Gun and cable assembly(1) 3
7
3. Literature and miscellaneous including:
a) This operating manual
5
b) 3 extra .023"-.025� (0.6 mm) contact tips
c) 3 extra .035� (.09mm)contact tips
d) Hex key wrench for removal of drive roll.
9
4. 10 ft (3.0 m) work cable.
8
5. Work clamp.
6. Sample spool of .025� (0.6 mm) L-56 MIG wire.
7. Sample spool of.035� (.09mm) NR-211 MP
Innershield Flux Cored Wire
8. Handshield with filter plate and lens.
9. Adjustable mixed-Gas Regulator & Hose.
10. Mig Nozzle Assembly
WELD-PAK 3200HD
A-3 A-3
INSTALLATION
Work Clamp Installation
SELECT SUITABLE LOCATION
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.
WELD-PAK 3200HD cannot be stacked.
TILTING
FIGURE A.3
Each machine must be placed on a secure, level sur-
face, either directly or on either recommended cart. Strain Relief Hole
The machine may topple over if this procedure is not
Work Cable
followed. Nut & Bolt
OUTPUT CONNECTIONS
Refer to Figure A.2.
Work Clamp
1. Work Cable Access Hole.
2. Gun Cable and Control Lead Access Hole.
3. Connector Block.
4. Gun Trigger Lead Connectors.
5. Positive (+) and negative (�) output terminals.
6. Wire Feed Gearbox.
7. Cable Hanger.
8. Thumbscrew.
4
5
+
8
-
6
3 7
1 2
FIGURE A.2
WELD-PAK 3200HD
A-4 A-4
INSTALLATION
Connecting Gun Cable to the WELD-PAK
Work Cable Installation
3200HD.
Refer to Figure A.2.
1. Refer to Figure A.2. Unplug the machine or turn
1. Open the wire feed section door on the right side of
power switch to the OFF “O� position.
the WELD-PAK 3200HD.
2. Pass the insulated terminals of the gun trigger con-
2. Pass the end of the work cable that has the termi-
trol leads, one at a time, through the Gun Cable
nal lug with the smaller hole through the Work
and Control Lead Access Slot (2) in the case front.
Cable Access Hole (1) in the case front.
The leads are to be routed under the Wire Feed
Gearbox (6) and through the Cable Hanger (7) on
3. Route the cable under and around the back of the
the inner panel.
Wire Feed Gearbox (6).
3. Insert the connector on the gun conductor cable
4. For Innershield Only: Refer to Figure A.4. As
through the Gun Cable Access Hole (2) in the
delivered, The machine is connected for negative
WELD-PAK 3200H case front. Make sure the con-
polarity (required for the Innershield process), con-
nector is all the way in the brass connector block.
nect the short cable attached to the connector
Unscrew thumbscrew on the connector block a few
block (1) to the negative (�) output terminal (2) and
turns if gun connector will not insert fully. Rotate
the work cable (3) to the positive (+) terminal (4).
the connector so control leads are on the under-
side and tighten the Thumbscrew (8) in the con-
5. For GMAW Only: Refer to Figure A..2. To wire for
nector block.
positive electrode polarity. the appropriate configu-
ration for the GMAW (MIG) process use the provid-
4. Connect the gun trigger control lead terminals to
ed wing nut to connect the work cable’s terminal
the two insulated 1/4" (6.4 mm) tab terminal con-
lug to the negative (�) output terminal (5) located
nector bushings located below the “Gun Trigger
above the Wire Feed Gearbox (6). Make sure that
Connection� decal in the wire feed section (4).
both wing nuts are tight.
Either lead can go to either connector. Form the
leads so that they are as close as possible to the
inside panel.
4
3
CAUTION
2
If the gun trigger switch being used is other than
that supplied with the WELD-PAK 3200HD, the
switch must be a normally open, momentary
1
switch. The terminals of the switch must be insu-
lated from the welding circuit. Malfunction of the
WELD-PAK 3200HD may result if this switch
shorts to the WELD-PAK 3200HD welding output
circuit or is common to any electrical circuit other
than the WELD-PAK 3200HD trigger circuit.
GAS CONNECTION
FIGURE A.4
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 WELD-PAK 3200HD
selecting gas cylinders for use with the WELD-PAK
is ready to feed .023�-.025" (0.6 mm) solid wire. If
3200HD refer to the ACCESSORIES section.
.030 (0.8mm) solid wire. If .030" (0.8 mm) solid wire is
to be used, change the contact tip to the appropriate
size.
NOTE: If .035" (0.9 mm) Innershield flux-cored wire is
to be used, assemble the mig nozzle and .035� tip on
to gun and reverse drive roll.
WELD-PAK 3200HD
A-5 A-5
INSTALLATION
2. With the cylinder securely installed, remove the
WARNING cylinder cap. Stand to one side away from the out-
CYLINDER may explode if dam- let and open the cylinder valve very slightly for an
aged. Keep cylinder upright and instant. This blows away any dust or dirt which may
chained to support have accumulated in the valve outlet.
� Keep cylinder away from areas
where it may be damaged.
WARNING
� Never lift welder with cylinder
attached. BE SURE TO KEEP YOUR FACE AWAY FROM
� Never allow welding electrode to THE VALVE OUTLET WHEN “CRACKING� THE
touch cylinder. VALVE. Never stand directly in front of or behind
the flow regulator when opening the cylinder
� Keep cylinder away from welding
valve. Always 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, make
BUILDUP OF SHIELDING GAS may
certain the plastic washer is seated in the fitting
harm health or kill.
that attaches to the CO2 cylinder.
� Shut off shielding gas supply
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 WELD-PAK 3200HD
LISHED BY THE AMERICAN Gas Solenoid Inlet Fitting (5/8-18 female threads
WELDING SOCIETY. � for 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, if not
using undercarriage. Insulate the cylinder from the
work circuit and earth ground. Refer to Figure A.5.
Cylinder Valve
Flow Regulator
Gas Hose
FIGURE A.5
WELD-PAK 3200HD
A-6 A-6
INSTALLATION
INPUT CONNECTIONS Requirements For Rated Output
A power cord with a 15 amp, 125 volt, three prong
Refer to Figure A.6.
plug (NEMA Type 5-15P) is factory installed on the
WELD-PAK 3200HD. Connect this plug to a mating
The WELD-PAK 3200HD has a power input cable
grounded receptacle which is connected to a 20 amp
located on the rear of the machine.
branch circuit with a nominal voltage rating of 115 to
125 volts, 60 Hertz, AC only.
The rated output with this installation is 90 amps,19
Volts, 20% duty cycle (2 minutes of every 10 minutes
used for welding).
CAUTION
GAS SOLENOID
INLET FITTING
POWER INPUT Do not connect the WELD-PAK 3200HD to an input
CABLE power supply with a rated voltage that is greater
than 125 volts.
Do not remove the power cord ground prong.
FIGURE A.6
CODE REQUIREMENTS FOR INPUT
CONNECTIONS
WARNING
This welding machine must be connected to a
power source in accordance with applicable elec-
trical codes.
The United States National Electrical Code (Article
630-B, 1990 Edition) provides standards for
amperage handling capability of supply conduc-
tors 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.
WELD-PAK 3200HD
A-7 A-7
INSTALLATION
10. Tighten Gas Bottle Support Brackets with supplied
UNDERCARRIAGE ASSEMBLY
1/4"-20 wing screws and wing nuts.
WARNING
FIGURE A.7
CYLINDER may explode
if damaged. 3
� Keep cylinder upright and secured
to support.
� Keep cylinder away from areas where it may be
damaged.
� Never lift welder with cylinder attached.
� Never allow welding electrode to touch cylinder. 6
� Keep cylinder away from welding or other live 7
electrical circuits.
� The undercarriage is not intended for transport-
ing the Weld-Pak 3200HD. 2
� If the Weld-Pak 3200HD is going to be transport- 1
ed, remove the under-carriage.
4
� Do not lift the Weld-Pak 3200HD when a gas bot- 5
tle is connected.
� If the Weld-Pak 3200HD is going to be moved or
lifted, remove the gas bottle.
------------------------------------------------------------------------
(Refer to Figure A.7)
Note: The following instructions assume a gas bottle
is going to be used. If a gas bottle is not going to be
used, skip steps 5 and steps 7-10.
1. Remove both sheet metal screws (1) from case.
2. Align undercarriage base (2) with side mount screw
holes as shown. Make sure the two caster mount-
ing holes are located in front of the machine.
3. Replace sheet metal screws removed in step 1
making sure to secure undercarriage to the Weld-
Pak 3200HD (1).
4. Use both supplied black round head screws to
secure door side of the Weld-Pak 3200HD (3) to
undercarriage.
5. Attach Gas Bottle Support Base to rear of undercar-
riage using supplied 1/4"-20 fasteners (4).
6. Attach the supplied fixed casters to the rear of the
undercarriage assembly (5).
7. Attach the supplied swivel caster to the front of the
undercarriage with the supplied 5/16" acorn nuts.
8. Attach both Gas Bottle Support Brackets (6) as
shown.
9. Insert gas bottle if available.
WELD-PAK 3200HD
B-1 B-1
OPERATION
Read entire operation section before GENERAL DESCRIPTION
operating the WELD-PAK 3200HD.
The WELD-PAK 3200HD is a complete semiautomatic
constant-voltage DC wire feeder / power source arc
welder. It has been designed for workshop, hobby,
WARNING automotive and light maintenance. Included is a tap-
switch controlled, single phase constant voltage trans-
ELECTRIC SHOCK can kill. former / rectifier power source and a wire feeder weld-
ing gun for feeding .023 - .025� (0.6 mm) through
� Do not touch electrically live
.030� (0.8 mm) solid steel electrode and .035� (0.9
parts or electrode with skin or
mm) Innershield® NR-211-MP flux-cored wire.
wet clothing. Insulate yourself
from work and ground.
The WELD-PAK 3200HD is ideally suited for individu-
� Always wear dry insulating
als having access to 120 volt AC input power, and
gloves.
wanting the ease of use, quality and dependability of
both gas metal arc welding or GMAW (also known as
MIG welding) and the Innershield electrode process
FUMES AND GASES can be (self shielded flux cored or FCAW). The WELD-PAK
dangerous. 3200HD is a rugged and reliable machine that has
been designed 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 WELD-PAK 3200HD can be used for welding
mild steel using the Gas Metal Arc Welding (GMAW or
MIG, Metal Inert Gas) single pass process, which
WELDING SPARKS can requires a supply of shielding gas, or the flux-cored
arc welding (FCAW) process using Innershield® elec-
cause fire or explosion.
trode wire. The WELD-PAK 3200HD is configured for
� Keep flammable material away.
use with the FCAW process as delivered from the fac-
� Do not weld on closed contain- tory.
ers.
OPERATIONAL CONTROLS
The WELD-PAK 3200HD has the following controls as
standard: Control Power ON/OFF Switch, Voltage
Control, Wire Speed Control, Trigger Switch, and a
ARC RAYS can burn eyes Circuit Breaker. With the optional Spot/Stitch Timer Kit
and skin. installed, the following controls are also included:
Mode switch and Time Control.
� Wear eye, ear and body protec-
tion.
DESIGN FEATURES
G Operates on 120 volt input � no special wiring
required.
G “Cold electrode� until gun trigger is pressed for an
added measure of safety.
Observe all safety information throughout
G Overload protection � incorporates both a thermo-
this manual. stat and a circuit breaker.
G Quality wire drive with electronic overload protec-
tion.
G “Quick Release� idle roll pressure arm is easily
adjusted.
G Reversible, dual groove drive roll. Drive roll will
feed .023 � .025� (0.6 mm) and .030" - .035" (0.8 -
0.9 mm) diameter wire.
WELD-PAK 3200HD
B-2 B-2
OPERATION
G No external shielding gas is required when used Refer to Figure B.1b.
with Lincoln Innershield® .035� (0.9 mm) NR-211- 4. Circuit Breaker � Protects machine from damage if
MP electrode. maximum output is exceeded. Button will extend
out when tripped (Manual reset) Refer to Figure B.1b.
G Accommodates both 4� (100 mm) diameter and 8�
(200 mm) diameter spools of wire.
5. Gun Trigger - Activates welding output, wire feed,
and gas solenoid operation. Releasing the trigger
WELDING CAPABILITY
deactivates welding and simultaneously activates
the “burnback� function so that the welding wire
The WELD-PAK 3200HD is rated at 90 amps, 19
does not stick in the weld puddle.
volts, at 20% duty cycle on a ten minute basis. It is
capable of higher output currents at lower duty cycles.
LIMITATIONS
Arc Gouging cannot be performed with the WELD-
PAK 3200HD. The WELD-PAK 3200HD is not recom-
mended for pipe thawing or TIG welding.
CONTROLS AND SETTINGS
Refer to Figure B.1a.
1. Control 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. The weld-
OFF
ing output and wire feeder
remain off until the gun trigger
is pressed.
2. Wire Speed Control �
ON
Controls the wire feed speed
from 50 � 300 in /min (1.3 �
7.6 m/min). The control can
be preset on the dial to the
WIRE SPEED
setting specified on the
WELDPAK3200HD
Application Chart located on
the inside of the wire feed
section door.
3. Voltage Control � A 4-posi-
tion tap selector switch gives
full range adjustment of
power source output voltage.
Do not switch while welding. ARC VOLTS
WELD-PAK 3200HD
B-3 B-3
OPERATION
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
2 tab, the tab cannot be depressed to load or unload the
1 wire spool.
FIGURE B.2
3
DO NOT SWITCH
WHEN WELDING
Wire Spool Spindle
8� Wire Spool
FIGURE B.1a 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.
To use 4� (100 mm) diameter spools, the 2� (50 mm)
diameter spindle must be removed (See Figure B.3).
Remove the wing nut and spacer at the end of the
shaft and remove the outside plastic wire spool spin-
dle. The spindle can be stored in the wire feed com-
FIGURE B.1b
partment. A 4� (100 mm) diameter spool is mounted
directly on the 5/8� (16 mm) diameter shaft and held in
WELDING OPERATIONS place with the previously removed hardware. Also
make certain the start end of the wire, which may pro-
SEQUENCE OF OPERATION
trude through the side of the spool does not contact
any metallic case parts.
Wire Loading
Refer to Figures B.2 and B.3. FIGURE B.3
The machine power switch should be turned to the
OFF (“O�) position before working inside the wire feed
enclosure.
4" Wire Spool
Wire Spindle Shaft
The welder is shipped from the factory ready to feed
8" (200 mm) diameter spools with 2.2" (56 mm) maxi-
mum width. These spools fit on a 2" (51 mm) diameter
spindle that has a built in, adjustable friction brake to
prevent overrun of the spool and excess slack in the
wire.
Wing Nut
and Spacer
To Wire Drive
WELD-PAK 3200HD
B-4 B-4
OPERATION
Friction Brake Adjustment
With wire spool installed on the spindle shaft and the
wing nut loose, turn the spool by hand while slowly
tightening the wing nut until a light drag is felt. Tighten
the wing nut an additional 1/4 turn.
2
Note: When properly adjusted, the brake should pro-
vide only enough drag to prevent overrun of the spool
and excess slack in the wire. Too much drag may
1
result in wire feeding problems, and may cause pre-
4
5
mature wear of wire drive system components.
3 The Wire Drive Feed Roll can
Wire Threading accommodate two wire sizes
by flipping the wire drive feed
Refer to Figure B.4
roll over.
1. Release the Spring Loaded Pressure Arm (1)
rotate the Idle Roll Arm (2) away from. the Wire
FIGURE B.4
Feed Drive Roll (3). Ensure that the groove size in
the feeding position on the drive roll matches the 7. Refer to Figure B.5. Remove gas nozzle and con-
wire size being used. tact tip from end of gun.
2. Carefully detach the end of the wire from the 8. Turn the WELD-PAK 3200HD ON (“I�).
spool. To prevent the spool from unwinding,
maintain tension on 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. Turn the WELD-PAK 3200HD OFF (“O�).
5. Close the idle roll arm (2) and latch the spring
loaded pressure arm (1) in place. Rotate the spool 12. Replace contact tip and gas nozzle.
counterclockwise if required in order to take up
extra slack in the wire. 13. Refer to Figure B-6. Cut the wire off 1/4� � 3/8� (6
� 10 mm) from the end of the tip. The WELD-PAK
6. The idle roll pressure adjustment wing nut is factory 3200HD is now ready to weld.
set to approximately five full turns from where the
wing nut first engages the threads of the pressure
arm (1). If feeding problems occur because the wire
is flattened excessively, turn the pressure adjust-
ment counter-clockwise to reduce distortion of the Gun Handle
wire. Slightly less pressure may be required when
using 0.023 � 0.025" (0,6 mm) wire. If the drive roll
slips while feeding wire, the pressure should be Gas Diffuser/
increased until the wire feeds properly. Contact Tip
WARNING Gas Nozzle
When inching the welding wire, the drive rolls, the
gun connector block and the gun contact tip are FIGURE B.5
electrically energized relative to work and ground
and remain energized for several seconds after
the gun trigger is released.
WELD-PAK 3200HD
B-5 B-5
OPERATION
6. Refer to Figure B.7. Connect work clamp to metal
to be welded. Work clamp must make good elec-
trical contact to the workpiece. The workpiece
must also be grounded as stated in “Arc Welding
Contact Tip Safety Precautions� in the beginning of this manu-
al.
7. Position gun over joint. End of wire may be lightly
Wire Electrode
touching the work.
3/8" � 1/2" Electrical Stickout
8. Lower welding helmet, close gun trigger, and
begin welding. Hold the gun so the contact tip to
work distance is about 3/8 inch (10 mm).
FIGURE B.6
9. To stop welding, release the gun trigger and then
pull the gun away from the work after the arc goes
Making A Weld
out.
1. See “Process Guidelines� in this section for selec-
tion of welding wire and shielding gas and for
10. When no more welding is to be done, close valve
range of metal thicknesses that can be welded.
on gas cylinder (if used), momentarily operate gun
trigger to release gas pressure, and turn off the
2. See the Application chart on the inside of the wire
WELD-PAK 3200HD.
feed compartment door for information on setting
the WELD-PAK 3200HD controls. Refer to Table
B.1 for aluminum and stainless wire.
Cleaning Tip And Nozzle
Clean the contact tip and nozzle to avoid arc bridging
3. Set the Voltage (“Vâ€?) and Wire Speed (“olo’â??) con-
between the nozzle and contact tip which can result in
trols to the settings suggested for the welding wire
a shorted nozzle, poor welds and an overheated gun.
and base metal thickness being used, refer to
Hint: Anti-stick spray or gel, available from a welding
Applications chart on the inside of the wire drive
supply distributor, may reduce buildup and aid in spat-
compartment door.
ter removal.
4. Check that the polarity is correct for the welding
wire being used and that the gas supply, if
PROCESS GUIDELINES
required, is turned on.
The WELD-PAK 3200HD can be used for welding
5. When using Innershield electrode, remove the gas
mild steel using the GMAW, single pass, process
nozzle and install the gasless nozzle. This will
which requires a supply of shielding gas or it can be
improve visibility of the arc and protect the gas dif-
used for the self-shielded, Innershield ® process
fuser from weld spatter. Refer to the MAINTE-
(FCAW).
NANCE section for details on nozzle replacement.
The recommended gases and electrodes for GMAW
are welding grade CO2 gas or an argon-CO2 blended
gas (75 to 80% argon and 25 to 20% CO2) and .025"
(0.6 mm) diameter Lincoln L-56 mild-steel welding
wire, supplied on 12-1/2 lb (5.7 kg) spools. The blend-
ed gas is recommended for welding on heavier steel,
GUN CABLE
14 gauge (2.0 mm), for example.
The recommended electrode for the self-shielded
process is .035� (0.9 mm) diameter Lincoln
Innershield® NR-211-MP on 10 lb (4.5 kg) spools.
WORKPIECE
This electrode can be used for all position welding of
ARC
20 gauge (1.0 mm) through 5/16" (8 mm) steel.
Thickness of 1/4" (6 mm) and 5/16" (8 mm) require
WORK CLAMP
multiple passes. This wire can also be used for the
FIGURE B.7 welding of galvanized coated sheet metal.
WELD-PAK 3200HD
B-6 B-6
OPERATION
The WELD-PAK 3200HD is suitable for .035" alu- 2. If using a regulator with an adjustable flow meter,
minum wire and .030" stainless wire. Refer to Table close the gun trigger and adjust the flow to give 15
B.1 for recommended procedure settings (requires � 20 cubic ft per hour (CFH) (7 � 10 I/min) [use 20
K499 Argon Regulator Kit). � 25 CFH (10 � 12 I/min) when welding out of
position or in a drafty location for CO2]. For argon
TABLE B.1 mixed gas, trigger to release gas pressure, and
adjust the flow to give 25 � 30 CFH (12 � 14
Voltage/Wire Speed
Shielding
I/min).
Process Welding Wire Gas 16 ga 14 ga 12 ga 10 ga
MIG DC+ .035 Dia 100% Argon B-5 D-7 D-9 D-9
3. Keep the cylinder valve closed, except when using
4043 Aluminum
Wire
the WELD-PAK 3200HD. When finished welding:
MIG DC+ .035 Dia 100% Argon B-5 C-7 D-9 D-10
5356 Aluminum a) Close the cylinder valve to stop gas flow.
Wire
b) Depress the gun trigger briefly to release the
MIG DC+ .030 Dia 98% Argon/ A-3 C-6 D-7.5 D-7.5
308L Stainless 2% Oxygen
pressure in the gas hose.
Steel Wire
c) Turn off the WELD-PAK 3200HD.
WELDING WITH FCAW (Innershield)
CHANGING MACHINE OVER TO
FEED OTHER WIRE SIZES When using the FCAW process, the correct drive roll
and electrode polarity must be used. See Work Cable
The WELD-PAK 3200HD is shipped from the factory Installation in INSTALLATION section for changing
ready to feed 023�-.025� (0.6 mm) diameter wire. To the polarity.
operate the WELD-PAK 3200HD with other sizes of
wire, it is necessary to change the contact tip and
OVERLOAD PROTECTION
change the drive roll over to other sizes. Refer to
Changing the Contact Tip and Changing the Drive
Roll, in the MAINTENANCE section, for specific infor- Output Overload
mation on these procedures. The WELD-PAK 3200HD is equipped with a circuit
breaker and a thermostat which protects the machine
from damage if maximum output is exceeded. The cir-
cuit breaker button will extend out when tripped. The
WELDING WITH GMAW (MIG) circuit breaker must be manually reset.
Shielding Gas
Thermal Protection
When using the GMAW process, obtain and install a The WELD-PAK 3200HD has a rated output duty
gas regulator and hose kit; K463 (for CO2) or K499 cycle of 20%. If the duty cycle is exceeded, a thermal
(Argon mixed) gas regulator and hose kit. protector will shut off the output until the machine
cools to a reasonable operating temperature. This is
1. For CO2, open the cylinder very slowly. For argon- an automatic function of the WELD-PAK 3200HD and
mixed gas, open cylinder valve slowly a fraction of does not require user intervention. The fan continues
a turn. When the cylinder pressure gauge pointer to run during cooling.
stops moving, open the valve fully.
Electronic Wire Drive Motor Protection
The WELD-PAK 3200HD has built-in protection for
wire drive motor overload.
WELD-PAK 3200HD
B-7 B-7
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 Innershield type electrodes recom-
will help the inexperienced operator to understand mended for use with this welding
welding and develop this skill. For more detailed infor- machine can be toxic.
mation, 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 OPERATORS 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 maintaining a contact tip to work distance of about 3/8
cable, gun, and contact tip, to the wire and across the to 1/2 inch (10 � 12 mm) This is called electrical stick-
arc. On the work side of the arc, current flows through out. This electrical stickout (ESO) must be properly
the base metal to the work cable and back to the maintained by the operator. The electric arc is made
welding machine. This circuit must be complete for the in the gap between the work and the tip end of a small
current 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
32 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 triggers depressed. good physical condition, and good eyesight. The oper-
ator controls the welding arc, and, therefore, the quali-
To weld, the work clamp must be tightly connected to ty 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-
THE SELF-SHIELDED FCAW WELDING
vent current from going through an unwanted path.
ARC
Avoid allowing the welding circuit to pass through
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.
Electronic Components
Burning of core materials
Cored Wire inside wire electrode
results in shield of gas.
Protective Slag
Arc Stream
Weld Metal
FIGURE B.9
Bearings
Hinges
FIGURE B.8
WELD-PAK 3200HD
B-8 B-8
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 contaminant's 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� (0.9 mm) 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. process for the job you have at hand. In selecting a
process, you should consider:
WELD-PAK 3200HD
B-9 B-9
LEARNING TO WELD
JOINT TYPES AND POSITIONS
For GMAW (MIG) Process
1. Is most of my welding performed on 16 gauge and
Five types of welding joints are: Butt Welds, Fillet
lighter materials?
Welds, Lap Welds, Edge Welds and Corner Welds.
See Figure B.11.
2. Can I afford the extra expense, space, and lack of
portability required for gas cylinders and gas sup-
Of these, the Butt Weld and Fillet Weld are the two
ply?
most common welds.
3. Do I require clean, finished-looking welds?
If you have answered yes to all the above questions
GMAW may be the process for you. If you have
answered no to any of the above questions, then you
should consider using the FCAW process. Butt weld Lap weld
For FCAW (Innershield) Process
1. Do I want simplicity and portability?
2. Will welding be performed outdoors or under windy
conditions?
Edge weld Fillet weld Corner weld
3. Do I require good all position welding capability?
4. Will most welding be performed on 16 gauge and
FIGURE B.11
heavier, somewhat rusty or dirty materials?
Butt Welds
5. Weld must be cleaned prior to painting.
Place two plates side by side, leaving a space approx-
imately one half the thickness of the metal between
COMMON METALS them in order to get deeper penetration.
Securely clamp or tack weld the plates at both ends,
Most metals found around the farm, small shop or
otherwise the heat will cause the plates to move apart.
home are low carbon steel, sometimes referred to as
See Figure B.12.
mild steel. Typical items made with this type of steel
include most sheet metal, plate, pipe and rolled
Now weld the two plates together. Weld from left to
shapes such as channels and angle irons. This type of
right (if right handed). Point the wire electrode down in
steel can usually be easily welded without special pre-
the crack between the two plates, keeping the gun
cautions. Some steels, however, contain higher car-
slightly tilted in the direction of travel. Watch the
bon levels or other alloys and are more difficult to
molten metal to be sure it distributes itself evenly on
weld. Basically, if a magnet sticks to the metal and
both edges and in between the plates. This is referred
you can easily cut the metal with a file, chances are
to as the “pull technique�. On thin gauge sheet metal,
good that the metal is mild steel and that you will be
use the “push technique�. See “Welding Techniques
able to weld the material. In addition, aluminum and
for GMAW (MIG) Process�.
stainless steel can be welded using the K664-1
Aluminum Welding Kit. For further information on
identifying various types of steels and other metals,
and for proper procedures for welding them, we again
suggest you purchase a copy of “New Lessons in Arc
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 contaminant's.
WELD-PAK 3200HD
B-10 B-10
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.
WELD-PAK 3200HD
B-11 B-11
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.
WELD-PAK 3200HD
B-12 B-12
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.
WELD-PAK 3200HD
B-13 B-13
LEARNING TO WELD
Helpful Hints For the WELD-PAK 3200HD, use the following:
Mild Steel 12 gauge or 1/8 inch
1. For general welding, it is not necessary to weave
(3.0 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� D
when welding on heavy plate, it is necessary to go
more slowly in order to get good penetration. Wire Feed Speed “o|o� 3
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
WELD-PAK 3200HD
B-14 B-14
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.)
WELD-PAK 3200HD
B-15 B-15
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
more slowly in order to get good penetration.
ESO
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 WELD-PAK 3200HD, 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
molten Puddle solidifies that indicates correct weld- Electrode Lincolnweld 0.025 L-56
ing speed. The ridge should be approximately 3/8� electrode
(10 mm) behind the wire electrode. CO2
Voltage Setting “V� C
Most beginners tend to weld too fast, resulting in a
thin, uneven, “wormy� looking bead. They are not Wire Feed Speed “o|o� 4
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
WELD-PAK 3200HD
B-16 B-16
LEARNING TO WELD
To Reduce Spatter (in order of importance):
TROUBLESHOOTING WELDS
Good welds have excellent appearance.
1. Increase voltage.
2. Increase drag angle.
3. Decrease stickout.
4. Increase WFS (wire feed speed).
To Eliminate Porosity (in order of importance):
5. Decrease travel speed.
6. Check for correct gas, if used.
To Correct Poor Penetration (in order of impor-
tance):
1. Decrease stickout.
2. Increase WFS (wire feed speed).
1. Turn on gas supply, if used
3. Increase voltage.
2. Decrease voltage.
4. Decrease speed.
3. Increase stickout.
5. Decrease drag angle.
4. Increase WFS (wire feed speed).
6. Check for correct gas, if used.
5. Decrease drag angle.
If Arc Blow Occurs (in order of importance):
6. Decrease travel speed.
NOTE: Try different ground connection locations
NOTE: Always be sure the joint is free from moisture,
before adjusting procedures.
oil, rust, paint or other contaminant's.
1. Decrease drag angle.
To Eliminate a Ropy Convex Bead
2. Increase stickout.
(in order of importance):
3. Decrease voltage.
4. Decrease WFS (wire feed speed.
5. Decrease travel speed.
To Eliminate Stubbing* (in order of importance):
1. Increase voltage
2. Decrease WFS (wire feed speed)
1. Increase voltage.
3. Decrease stickout
2. Decrease stickout.
4. Increase drag angle
3. Decrease WFS (wire feed speed.
* Stubbing occurs when the electrode drives through
4. Decrease travel speed.
the molten puddle and hits the bottom plate tending
5. Decrease drag angle. to push the gun up.
6. Check for correct gas, if used.
WELD-PAK 3200HD
B-17 B-17
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.
WELD-PAK 3200HD
B-18 B-18
APPLICATION CHART
WELD-PAK 3200HD
C-1 C-1
ACCESSORIES
3. 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. K664-2 Aluminum Feeding Kit � This kit
and large rear wheels. Handle height is easily
required for welding with .035 Aluminum wire.
adjustable. Bottom tray provided for tools and
Included with this kit are a drive roll, liner and con-
accessories. Easy assembly required; takes less
tact tip. It is important when changing between
than 15 minutes.
welding with steel wire and aluminum to
exchange these components due to the lubri-
4. K586-1 Deluxe Adjustable Gas Regulator &
cant applied to steel wire. Failure to do so may
Hose Kit
result in contaminated welds when welding alu-
Accommodates CO2 or mixed Gas Cylinders.
minum.
2. KP665-045C Drive Roll � Optional � Knurled
drive roll for feeding .035 (0.9 mm) diameter flux-
cored electrode.
WELD-PAK 3200HD
C-2 C-2
ACCESSORIES
REPLACEMENT PARTS
Liner .035/.045� (0.9/1.2 mm)
M16291-1
Complete Gun and Cable Assembly
L8311-5 (K530-4)
Gas Diffuser
S19728
Contact Tip .025� (0.6 mm)
S19726-1
Gas Nozzle
M16294
Contact Tip .030� (0.8 mm)
S19726-2
Gas Nozzle-Tip Recessed 3/8� (9.5 mm)
Opening I.D.
Contact Tip .035� (0.9 mm)
M16684
S19726-3
Gas Nozzle-Tip Recessed 1/2� (12.7 mm)
Contact Tip-Tapered .025� (0.6 mm)
Opening I.D.
S20278-1
M16684-1
Contact Tip-Tapered .030� (0.8 mm)
Gas Nozzle-Tip Recessed 5/8� (15.9 mm)
S20278-2
Opening I.D.
M16684-2
Contact Tip-Tapered .035� (0.9 mm)
S20278-3
Spot Welding Nozzle
M17846
Liner .023 - .030� (0.6 - 0.8 mm)
M16291-2
Gasless Nozzle (Innershield Only)
M16418
Liner .030 - .035� (0.8 - 0.9 mm)
M16291-6
WELD-PAK 3200HD
D-1 D-1
MAINTENANCE
MAINTENANCE
SAFETY PRECAUTIONS
WARNING
ELECTRIC SHOCK can kill.
� Disconnect input power by removing
plug from receptacle before working
inside WELD-PAK 3200HD. Use only
grounded receptacle. Do not touch elec-
trically “hot� parts inside WELD-PAK
3200HD.
� Have qualified personnel do the mainte-
nance and trouble shooting work.
ROUTINE MAINTENANCE
POWER SOURCE COMPARTMENT
No user serviceable parts inside! Do not attempt to perform
service in the power source (fixed) side of the WELD-PAK
3200HD. Take the unit to an authorized Lincoln Service
Center if you experience problems. NO maintenance is
required.
In extremely dusty locations, dirt may clog the air passages
causing the welder to run hot with premature tripping of ther-
mal protection. If so, blow dirt out of the welder with low pres-
sure air at regular intervals to eliminate excessive dirt and dust
build-up on internal 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.
WELD-PAK 3200HD
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 S19726-3 M16291-6 KP665-035
WELD-PAK 3200HD� .035� (0.9mm) .035� (0.9mm) 2 Smooth grooves
Small .023-.025 (0.6mm)
Large .030� (0.8mm)
K664-2 .035 (0.9mm) S24221-1 M18971-1 M19631
Aluminum or Stainless Kit* .035A (0.9mm) .035� (0.9mm)
� F0r 0.025 wire feeding use the included S19726-1 contact tip.
� If .030 Solid wire feeding is desired obtain an S19726-2 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.
WELD-PAK 3200HD
D-3 D-3
MAINTENANCE
COMPONENT
8. Push a length of straightened welding wire through
REPLACEMENT
the wire feeder guide tubes and adjust the position
PROCEDURES of the drive roll so that the groove is centered on
the wire. Make certain the set screw is located on
CHANGING THE CONTACT TIP the flat portion of the shaft and tighten.
1. Refer to Figure D.2. Remove the gas nozzle from FIGURE D.1
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.
4. Replace gas nozzle.
3
CHANGING DRIVE ROLL
The drive roll has two grooves; one for .023" � .025"
2
(0.6 mm) solid steel electrode and a larger knurled
groove for .030" (0.8 mm) solid and .035" (0.9 mm)
flux-cored steel electrode. As shipped, the drive roll is
1
installed in the .030"/.035" (0.8/0.9 mm) position.
If .023" � .025" (0.6 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
.023 � .025" (0.6 mm) groove (the smaller groove)
closest to the gearbox.
WELD-PAK 3200HD
D-4 D-4
MAINTENANCE
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 8. Screw the gas diffuser onto the end of the gun tube
Liner trim length and securely tighten.
CHANGING LINER
9. Replace the contact tip and nozzle.
NOTICE: The variation in cable lengths prevents the
interchangeability of liners. Once a liner has been cut
GUN HANDLE PARTS
for a particular gun, it should not be installed in anoth-
er gun unless it can meet the liner cutoff length
The gun handle consists of two halves that are held
requirement. Refer to Figure D.2.
together with a collar on each end. To open up the
handle, turn the collars approximately 60 degrees
1. Remove the gas nozzle from the gun by unscrew-
counter-clockwise until the collar reaches a stop. Then
ing counter-clockwise.
pull the collar off the gun handle. If the collars are diffi-
cult to turn, position the gun handle against a corner,
2. Remove the existing contact tip from the gun by
place a screwdriver against the tab on the collar and
unscrewing counter-clockwise.
give the screwdriver a sharp blow to turn the collar
past an internal locking rib. See Figure D-3.
3. Remove the gas diffuser from the gun tube by
unscrewing counter-clockwise.
4. Lay the gun and cable out straight on a flat surface.
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.
5. Insert a new untrimmed liner into the connector end
of the cable. Be sure the liner bushing is stenciled
âž?
Counter-clockwise
appropriately for the wire size being used.
6. 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.
7. 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.
FIGURE D.3
Remove any burrs from the end of the liner.
WELD-PAK 3200HD
E-1 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 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.
WELD-PAK 3200HD
E-2 E-2
TROUBLESHOOTING
Observe all Safety Guidelines detailed throughout this manual
PROBLEMS POSSIBLE AREAS OF RECOMMENDED
(SYMPTOMS) MISADJUSTMENT(S) 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 (115vac).
does NOT operate.
2. Make certain that power switch
is in the ON position.
3. Make sure circuit breaker inside
wire drive compartment is reset. If all recommended possible areas
of misadjustment have been
No wire feed, weld output or gas 1. The thermostat may be tripped checked and the problem persists,
flow when gun trigger is pulled Fan due to overheating. Let machine Contact your local Lincoln
operates normally. cool. Weld at lower duty cycle. Authorized Field Service
Facility.
2. Check for obstructions in air
flow. Check Gun Trigger connec-
tions. See Installation section.
3. 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 Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
WELD-PAK 3200HD
E-3 E-3
TROUBLESHOOTING
Observe all Safety Guidelines detailed throughout 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 make sure that the correct drive
machine has correct open circuit rolls are installed in the machine.
voltage (32VDC maximum) � weld If all recommended possible areas
output. 2. Check for clogged cable liner or of misadjustment have been
contact tip. checked and the problem persists,
Contact your local Lincoln
3. Check for proper size cable liner Authorized Field Service
and contact tip. Facility.
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.
2. Check gun connection to If all recommended possible areas
machine for obstruction or leaky of misadjustment have been
seals. checked and the problem persists,
Contact your local Lincoln
Authorized Field Service
Facility.
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.
WELD-PAK 3200HD
E-4 E-4
TROUBLESHOOTING
Observe all Safety Guidelines detailed throughout 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 � 115vac.
2. Check for proper electrode
polarity for process.
3. Check gun tip for wear or dam-
age and proper size � Replace.
If all recommended possible areas
4. Check for proper gas and flow of misadjustment have been
rate for process. (For MIG only.) checked and the problem persists,
Contact your local Lincoln
5. Check work cable for loose or Authorized Field Service
faulty connections. Facility.
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 Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
WELD-PAK 3200HD
WELD-PAK 3200HD WIRING DIAGRAM
F-1
Do not operate with covers removed.
Disconnect input power by unplugging
power cord before servicing
Do not touch electrically live parts
J1
CONTROL P.C. BOARD Only qualified persons should install, use or
H2 LS1
HIGH VOLTAGE service this machine.
can kill
H2
S1
JUMPERED PLUG STANDARD
1 2 3 4 6
5 8 9 10
7
ON-OFF H2 N.O. THERMOSTAT
SPOT/STITCH TIMER OPTIONAL
SWITCH
(MOUNTED TO
209 213 208 203 SEC. COIL)
N.C.
WIRE SPEED
F1 CR1
214 539
204
541 N.C.
5K
J3
H1
115V/60HZ GUN TRIGGER
2 R2
3 1
4
115V/60HZ GAS
FAN MOTOR SOLENOID
213
H1 214
24V
208 209
211
AUXILIARY
WINDING
213A
211
214
(W)
-
539 WIRE
214 FEED
541 + MOTOR
(B)
OUTPUT
CIRCUIT
204
203 CHOKE
BREAKER
+
204
DIAGRAMS
S2
WELD-PAK 3200HD
204
SELECTOR D1
H1
SWITCH D2 GUN CABLE
204
202
X2
CONDUCTOR
+ 59,000 f
X3 N.D.
X4 C1
N.B. BLOCK
40V
X5
N.D.
203
H2 X1
T1 N.A.
D4
CASE
N.A. DIODES D2 & D4 ARE MOUNTED 203
D3
GROUNDING
ON THE OUTSIDE HEATSINK.
LATCH
STUD -
203
N.B. DIODES D1 & D3 ARE MOUNTED
J3
TO
ON THE INSIDE HEATSINK, WHICH
WORK
IS CLOSEST TO THE CENTER PANEL.
432 1
TO EARTH GROUND PER
N.C. COMPONENT VIEWED FROM REAR.
NATIONAL, LOCAL OR J1
OTHER APPLICABLE ELECTRICAL SYMBOLS PER E1537
N.D. BOLTED ALUMINUM CONNECTIONS
12345
ELECTRICAL CODES. REQUIRE T12837 JOINT COMPOUND LEAD COLOR CODE:
(DOW CORNING 340) WHEN REATTACHING.
6 7 8 9 10
B-BLACK
LATCH
W-WHITE
specific diagram for a particular code is pasted inside the machine on one of the enclosure panels.
CAVITY NUMBERING SEQUENCE
( COMPONENT SIDE OF BOARD ) 4-01
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The
M19924
F-1
NOTES
WELD-PAK 3200HD
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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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to visualize mechanically drawn objects as they will appear Welding School Registrar.
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187 pages with more than 100 illustrations. Size 8-1/2� x 11� Lincoln Welding School
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BOOKS OR FREE INFORMATIVE CATALOGS
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
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