Lincoln Electric Pro-MIG 135 Manuel utilisateur
- Catégorie
- Système de soudage
- Taper
- Manuel utilisateur
Pro-MIG 135
OPERATOR’S MANUAL
IM740
April, 2002
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.
For use with machine Code Number:10889
Pro-MIG™ 135
• 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
• World's Leader in Welding and Cutting Products •
Date of Purchase:
Serial Number:
Code Number:
Model:
Where Purchased:
ISO 9001
CERTIFICATE NUMBER: 30273
Designed and Manufactured Under a
Quality Program Certified by
ABS Quality Evaluations, Inc.
to ISO 9001 Requirements.
QMS
ANSI RAB
Copyright © 2002 Lincoln Global Inc.
™
This manual covers equipment which is no
longer in production by The Lincoln Electric Co.
Specications and availability of optional
features may have changed.
FOR ENGINE
powered equipment.
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.
____________________________________________________
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
refueling to prevent spilled fuel from vaporiz-
ing on contact with hot engine parts and
igniting. Do not spill fuel when filling tank. If
fuel is spilled, wipe it up and do not start
engine until fumes have been eliminated.
____________________________________________________
1.d. Keep all equipment safety guards, covers and devices in
position and in good repair.Keep hands, hair, clothing and
tools away from V-belts, gears, fans and all other moving
parts when starting, operating or repairing equipment.
____________________________________________________
1.e. In some cases it may be necessary to remove safety
guards to perform required maintenance. Remove
guards only when necessary and replace them when the
maintenance requiring their removal is complete.
Always use the greatest care when working near moving
parts.
___________________________________________________
1.f. Do not put your hands near the engine fan.
Do not attempt to override the governor or
idler by pushing on the throttle control rods
while the engine is running.
___________________________________________________
1.g. To prevent accidentally starting gasoline engines while
turning the engine or welding generator during maintenance
work, disconnect the spark plug wires, distributor cap or
magneto wire as appropriate.
i
SAFETY
i
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.
WARNING
Mar ‘95
ELECTRIC AND
MAGNETIC FIELDS
may be dangerous
2.a. Electric current flowing through any conductor causes
localized Electric and Magnetic Fields (EMF). Welding
current creates EMF fields around welding cables and
welding machines
2.b. EMF fields may interfere with some pacemakers, and
welders having a pacemaker should consult their physician
before welding.
2.c. Exposure to EMF fields in welding may have other health
effects which are now not known.
2.d. All welders should use the following procedures in order to
minimize exposure to EMF fields from the welding circuit:
2.d.1.
Route the electrode and work cables together - Secure
them with tape when possible.
2.d.2. Never coil the electrode lead around your body.
2.d.3. Do not place your body between the electrode and
work cables. If the electrode cable is on your right
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.
2.d.5. Do not work next to welding power source.
1.h. To avoid scalding, do not remove the
radiator pressure cap when the engine is
hot.
Diesel engine exhaust and some of its constituents
are known to the State of California to cause can-
cer, birth defects, and other reproductive harm.
The engine exhaust from this product contains
chemicals known to the State of California to cause
cancer, birth defects, or other reproductive harm.
CALIFORNIA PROPOSITION 65 WARNINGS
The Above For Diesel Engines
The Above For Gasoline Engines
ii
SAFETY
ii
ARC RAYS can burn.
4.a. Use a shield with the proper filter and cover
plates to protect your eyes from sparks and
the rays of the arc when welding or observing
open arc welding. Headshield and filter lens
should conform to ANSI Z87. I standards.
4.b. Use suitable clothing made from durable flame-resistant
material to protect your skin and that of your helpers from
the arc rays.
4.c. Protect other nearby personnel with suitable, non-flammable
screening and/or warn them not to watch the arc nor expose
themselves to the arc rays or to hot spatter or metal.
ELECTRIC SHOCK can
kill.
3.a. The electrode and work (or ground) circuits
are electrically “hot” when the welder is on.
Do not touch these “hot” parts with your bare
skin or wet clothing. Wear dry, hole-free
gloves to insulate hands.
3.b. Insulate yourself from work and ground using dry insulation.
Make certain the insulation is large enough to cover your full
area of physical contact with work and ground.
In addition to the normal safety precautions, if welding
must be performed under electrically hazardous
conditions (in damp locations or while wearing wet
clothing; on metal structures such as floors, gratings or
scaffolds; when in cramped positions such as sitting,
kneeling or lying, if there is a high risk of unavoidable or
accidental contact with the workpiece or ground) use
the following equipment:
• Semiautomatic DC Constant Voltage (Wire) Welder.
• DC Manual (Stick) Welder.
• AC Welder with Reduced Voltage Control.
3.c. In semiautomatic or automatic wire welding, the electrode,
electrode reel, welding head, nozzle or semiautomatic
welding gun are also electrically “hot”.
3.d. Always be sure the work cable makes a good electrical
connection with the metal being welded. The connection
should be as close as possible to the area being welded.
3.e. Ground the work or metal to be welded to a good electrical
(earth) ground.
3.f.
Maintain the electrode holder, work clamp, welding cable and
welding machine in good, safe operating condition. Replace
damaged insulation.
3.g. Never dip the electrode in water for cooling.
3.h. Never simultaneously touch electrically “hot” parts of
electrode holders connected to two welders because voltage
between the two can be the total of the open circuit voltage
of both welders.
3.i. When working above floor level, use a safety belt to protect
yourself from a fall should you get a shock.
3.j. Also see Items 6.c. and 8.
FUMES AND GASES
can be dangerous.
5.a. Welding may produce fumes and gases
hazardous to health. Avoid breathing these
fumes and gases.When welding, keep
your head out of the fume. Use enough
ventilation and/or exhaust at the arc to keep
fumes and gases away from the breathing zone. When
welding with electrodes which require special
ventilation such as stainless or hard facing (see
instructions on container or MSDS) or on lead or
cadmium plated steel and other metals or coatings
which produce highly toxic fumes, keep exposure as
low as possible and below Threshold Limit Values (TLV)
using local exhaust or mechanical ventilation. In
confined spaces or in some circumstances, outdoors, a
respirator may be required. Additional precautions are
also required when welding on galvanized steel.
5.b.
Do not weld in locations near chlorinated hydrocarbon
vapors
coming from degreasing, cleaning or spraying operations.
The heat and rays of the arc can react with solvent vapors
to
form phosgene, a highly toxic gas, and other irritating
products.
5.c. Shielding gases used for arc welding can displace air and
cause injury or death. Always use enough ventilation,
especially in confined areas, to insure breathing air is safe.
5.d. Read and understand the manufacturer’s instructions for this
equipment and the consumables to be used, including the
material safety data sheet (MSDS) and follow your
employer’s safety practices. MSDS forms are available from
your welding distributor or from the manufacturer.
5.e. Also see item 1.b.
Mar ‘95
FOR ELECTRICALLY
powered equipment.
8.a. Turn off input power using the disconnect
switch at the fuse box before working on
the equipment.
8.b. Install equipment in accordance with the U.S. National
Electrical Code, all local codes and the manufacturer’s
recommendations.
8.c. Ground the equipment in accordance with the U.S. National
Electrical Code and the manufacturer’s recommendations.
CYLINDER may explode
if damaged.
7.a. Use only compressed gas cylinders
containing the correct shielding gas for the
process used and properly operating
regulators designed for the gas and
pressure used. All hoses, fittings, etc. should be suitable for
the application and maintained in good condition.
7.b. Always keep cylinders in an upright position securely
chained to an undercarriage or fixed support.
7.c. Cylinders should be located:
• Away from areas where they may be struck or subjected to
physical damage.
• A safe distance from arc welding or cutting operations and
any other source of heat, sparks, or flame.
7.d. Never allow the electrode, electrode holder or any other
electrically “hot” parts to touch a cylinder.
7.e. Keep your head and face away from the cylinder valve outlet
when opening the cylinder valve.
7.f. Valve protection caps should always be in place and hand
tight except when the cylinder is in use or connected for
use.
7.g. Read and follow the instructions on compressed gas
cylinders, associated equipment, and CGA publication P-l,
“Precautions for Safe Handling of Compressed Gases in
Cylinders,” available from the Compressed Gas Association
1235 Jefferson Davis Highway, Arlington, VA 22202.
iii
SAFETY
iii
Mar ‘95
WELDING SPARKS can
cause fire or explosion.
6.a.
Remove fire hazards from the welding area.
If this is not possible, cover them to prevent
the welding sparks from starting a fire.
Remember that welding sparks and hot
materials from welding can easily go through small cracks
and openings to adjacent areas. Avoid welding near
hydraulic lines. Have a fire extinguisher readily available.
6.b. Where compressed gases are to be used at the job site,
special precautions should be used to prevent hazardous
situations. Refer to “Safety in Welding and Cutting” (ANSI
Standard Z49.1) and the operating information for the
equipment being used.
6.c. When not welding, make certain no part of the electrode
circuit is touching the work or ground. Accidental contact
can cause overheating and create a fire hazard.
6.d. Do not heat, cut or weld tanks, drums or containers until the
proper steps have been taken to insure that such procedures
will not cause flammable or toxic vapors from substances
inside. They can cause an explosion even
though
they have
been “cleaned”. For information, purchase “Recommended
Safe Practices for the
Preparation
for Welding and Cutting of
Containers and Piping That Have Held Hazardous
Substances”, AWS F4.1 from the American Welding Society
(see address above).
6.e. Vent hollow castings or containers before heating, cutting or
welding. They may explode.
6.f.
Sparks and spatter are thrown from the welding arc. Wear oil
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.
Always wear safety glasses with side shields when in a
welding area.
6.g. Connect the work cable to the work as close to the welding
area as practical. Work cables connected to the building
framework or other locations away from the welding area
increase the possibility of the welding current passing
through lifting chains, crane cables or other alternate cir-
cuits. This can create fire hazards or overheat lifting chains
or cables until they fail.
6.h. Also see item 1.c.
iv
SAFETY
iv
PRÉCAUTIONS DE SÛRETÉ
Pour votre propre protection lire et observer toutes les instruc-
tions et les précautions de sûreté specifiques qui parraissent
dans ce manuel aussi bien que les précautions de sûreté
générales suivantes:
Sûreté Pour Soudage A L’Arc
1. Protegez-vous contre la secousse électrique:
a. Les circuits à l’électrode et à la piéce sont sous tension
quand la machine à souder est en marche. Eviter toujours
tout contact entre les parties sous tension et la peau nue
ou les vétements mouillés. Porter des gants secs et sans
trous pour isoler les mains.
b. Faire trés attention de bien s’isoler de la masse quand on
soude dans des endroits humides, ou sur un plancher
metallique ou des grilles metalliques, principalement dans
les positions assis ou couché pour lesquelles une
grande partie du corps peut être en contact avec la
masse.
c. Maintenir le porte-électrode, la pince de masse, le câble
de soudage et la machine à souder en bon et sûr état
defonctionnement.
d.Ne jamais plonger le porte-électrode dans l’eau pour le
refroidir.
e. Ne jamais toucher simultanément les parties sous tension
des porte-électrodes connectés à deux machines à soud-
er parce que la tension entre les deux pinces peut être le
total de la tension à vide des deux machines.
f. Si on utilise la machine à souder comme une source de
courant pour soudage semi-automatique, ces precautions
pour le porte-électrode s’applicuent aussi au pistolet de
soudage.
2. Dans le cas de travail au dessus du niveau du sol, se pro-
téger contre les chutes dans le cas ou on recoit un choc. Ne
jamais enrouler le câble-électrode autour de n’importe quelle
partie du corps.
3. Un coup d’arc peut être plus sévère qu’un coup de soliel,
donc:
a. Utiliser un bon masque avec un verre filtrant approprié
ainsi qu’un verre blanc afin de se protéger les yeux du
rayonnement de l’arc et des projections quand on soude
ou quand on regarde l’arc.
b. Porter des vêtements convenables afin de protéger la
peau de soudeur et des aides contre le rayonnement de
l‘arc.
c. Protéger l’autre personnel travaillant à proximité au
soudage à l’aide d’écrans appropriés et non-inflamma-
bles.
4. Des gouttes de laitier en fusion sont émises de l’arc de
soudage. Se protéger avec des vêtements de protection
libres de l’huile, tels que les gants en cuir, chemise épaisse,
pantalons sans revers, et chaussures montantes.
5. Toujours porter des lunettes de sécurité dans la zone de
soudage. Utiliser des lunettes avec écrans lateraux dans les
zones où l’on pique le laitier.
6. Eloigner les matériaux inflammables ou les recouvrir afin de
prévenir tout risque d’incendie dû aux étincelles.
7. Quand on ne soude pas, poser la pince à une endroit isolé de
la masse. Un court-circuit accidental peut provoquer un
échauffement et un risque d’incendie.
8. S’assurer que la masse est connectée le plus prés possible
de la zone de travail qu’il est pratique de le faire. Si on place
la masse sur la charpente de la construction ou d’autres
endroits éloignés de la zone de travail, on augmente le risque
de voir passer le courant de soudage par les chaines de lev-
age, câbles de grue, ou autres circuits. Cela peut provoquer
des risques d’incendie ou d’echauffement des chaines et des
câbles jusqu’à ce qu’ils se rompent.
9. Assurer une ventilation suffisante dans la zone de soudage.
Ceci est particuliérement important pour le soudage de tôles
galvanisées plombées, ou cadmiées ou tout autre métal qui
produit des fumeés toxiques.
10. Ne pas souder en présence de vapeurs de chlore provenant
d’opérations de dégraissage, nettoyage ou pistolage. La
chaleur ou les rayons de l’arc peuvent réagir avec les
vapeurs du solvant pour produire du phosgéne (gas forte-
ment toxique) ou autres produits irritants.
11. Pour obtenir de plus amples renseignements sur la sûreté,
voir le code “Code for safety in welding and cutting” CSA
Standard W 117.2-1974.
PRÉCAUTIONS DE SÛRETÉ POUR
LES MACHINES À SOUDER À
TRANSFORMATEUR ET À
REDRESSEUR
1. Relier à la terre le chassis du poste conformement au code
de l’électricité et aux recommendations du fabricant. Le dis-
positif de montage ou la piece à souder doit être branché à
une bonne mise à la terre.
2. Autant que possible, I’installation et l’entretien du poste
seront effectués par un électricien qualifié.
3. Avant de faires des travaux à l’interieur de poste, la
debrancher à l’interrupteur à la boite de fusibles.
4. Garder tous les couvercles et dispositifs de sûreté à leur
place.
Mar. ‘93
Thank You
for selecting a QUALITY product by Lincoln Electric. We want you
to take pride in operating this Lincoln Electric Company product
••• as much pride as we have in bringing this product to you!
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.
This statement appears where the information must be followed to avoid minor personal injury or damage to
this equipment.
CAUTION
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.
vv
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
Operation .........................................................................................................Section B
Safety Precautions ................................................................................................B-1
General Description...............................................................................................B-1
Design Features ....................................................................................................B-1
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
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
Pro-MIG 135 Wiring Diagram.................................................................................F-1
Parts Lists .....................................................................................P408 Series, P202-E
A-1
Pro-MIG 135
A-1
Fuse or
Output Mode Input Voltage Breaker Size
1
Input Amps Power Cord Extension Cord
Three Conductor
#14 AWG
(2.1 mm
2
) or Larger
RATED 120V/60Hz 20 Amp 20 15 Amp, 125V,
Up to 25 Ft. (7.6 mm)
Three Prong Plug Three Conductor
(NEMA Type 5-15P) #12 AWG
(3.3 mm
2
) or Larger
Up to 50 Ft. (15.2 mm)
INSTALLATION
TECHNICAL SPECIFICATIONS – Pro-MIG 135
INPUT – SINGLE PHASE ONLY
RATED OUTPUT
OUTPUT
RECOMMENDED INPUT CABLE AND FUSE SIZES
Height Width Depth Weight
12.0 in 9.75 in 16.5 in 48 Ibs
305 mm 248 mm 419 mm 21.8 kg
PHYSICAL DIMENSIONS
Standard Voltage/Frequency Input Current
120V/60Hz 20 Amps - Rated Output
Duty
Cycle Amps Volts at Rated Amperes
20% Duty Cycle 90 19
Welding Current Range Maximum-Open Circuit Voltage 50 - 300 in/min.
25-135 Amps 29V (1.3 - 7.6 m/min.)
1
If connected to a circuit protected by fuses use Time Delay Fuse marked “D”.
A-2
INSTALLATION
Pro-MIG 135
A-2
Read entire installation section before starting
installation.
SAFETY PRECAUTIONS
IDENTIFY AND LOCATE
COMPONENTS
If you have not already done so, unpack the Pro-MIG
135 from its carton and remove all packing material
around the Pro-MIG 135. Remove the following loose
items from the carton (see Figure A.1):
1. Pro-MIG 135
2. Gun and cable assembly
(1)
3. Literature and miscellaneous including:
a) This operating manual
b) 2 extra .023"-.025” (0.6 mm) contact tips
c) 3 extra .035” (0.9 mm) contact tips
d) Hex key wrench for removal of drive roll.
4. 10 ft (3.0 m) work cable.
5. Work clamp.
6. a) Sample spool of .025” (0.6 mm) L-56 MIG wire.
b) Sample spool of Innershield .035” (0.9 mm)
NR-211-MP.
7. Hand shield with filter plate and lens.
8. Adjustable mixed-Gas Regulator & Hose.
9. Instructional video.
10. Gasless Nozzle.
For available options and accessories refer to the
Accessories Section of this manual.
1)
As shipped from the factory, the Pro-MIG 135 gun
liner is ready to feed .023” (0.6 mm) -.035 (0.9 mm)
wire. The contact tip is sized for .023”-.025” (0.6
mm) wire feeding.
ELECTRIC SHOCK can kill.
• Only qualified personnel should perform
this installation.
• Only personnel that have read and under-
stood the Pro-MIG 135 Operating Manual
should install and operate this equipment.
• Machine must be plugged into a receptacle
which is grounded per any national, local
or other applicable electrical codes.
• The Pro-MIG 135 power switch is to be in
the OFF (“O”) position when installing
work cable and gun and when connecting
power cord to input power.
WARNING
FIGURE A.1
1
2
3
4
6
7
8
5
Pro-MIG
™ 135
9
10
A-3
INSTALLATION
Pro-MIG 135
A-3
Pro-MIG™ 135
4
5
8
3
6
7
1
2
DO NOT SWITCH
WHEN WELDING
+
-
FIGURE A.2
Work Clamp Installation
Attach the work clamp per the following:
1. Unplug the machine or turn the power switch to the
“OFF” position.
2. Insert the work cable terminal lug with the larger
hole through the strain relief hole in the work clamp
as shown in Figure A-3.
3. Fasten securely with the bolt and nut provided.
FIGURE A.3
SELECT SUITABLE LOCATION
Locate the welder in a dry location where there is free
circulation of clean air into the louvers in the back and
out the front of the unit. A location that minimizes the
amount of smoke and dirt drawn into the rear louvers
reduces the chance of dirt accumulation that can block
air passages and cause overheating.
STACKING
Pro-MIG 135’s cannot be stacked.
TILTING
Each machine must be placed on a secure, level sur-
face, either directly or on either recommended cart.
The machine may topple over if this procedure is not
followed.
OUTPUT CONNECTIONS
Refer to Figure A.2.
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.
Strain Relief Hole
Nut & Bolt
Work Clamp
Work Cable
Work Cable Installation
Refer to Figure A.2.
1. Open the wire feed section door on the right side of
the Pro-MIG 135.
2. Pass the end of the work cable that has the termi-
nal lug with the smaller hole through the Work
Cable Access Hole (1) in the case front.
3. Route the cable under and around the back of the
Wire Feed Gearbox (6).
4. For GMAW Only: Refer to Figure A.2. As deliv-
ered, the machine is connected for positive elec-
trode polarity. This is the appropriate configuration
for the GMAW (MIG) process. To complete installa-
tion, use the provided wing nut to connect the work
cable’s terminal lug to the negative (–) output ter-
minal (5) located above the Wire Feed Gearbox
(6). Make sure that both wing nuts are tight.
5. For Innershield Only: Refer to Figure A.4. To wire
for negative polarity (required for the Innershield
process), connect the short cable attached to the
connector block (1) to the negative (–) output termi-
nal (2) and the work cable (3) to the positive (+)
terminal (4).
A-4
INSTALLATION
Pro-MIG 135
A-4
Connecting Gun Cable to the Pro-MIG 135
1. Refer to Figure A.2. Unplug the machine or turn
power switch to the OFF “O” position.
2. Pass the insulated terminals of the gun trigger con-
trol leads, one at a time, through the Gun Cable
and Control Lead Access Slot (2) in the case front.
The leads are to be routed under the Wire Feed
Gearbox (6) and through the Cable Hanger (7) on
the inner panel.
3. Insert the connector on the gun conductor cable
through the Gun Cable Access Hole (2) in the Pro-
MIG 135 case front. Make sure the connector is all
the way in the brass connector block. Unscrew
thumbscrew on the connector block a few turns if
gun connector will not insert fully. Rotate the con-
nector so control leads are on the underside and
tighten the Thumbscrew (8) in the connector block.
4. Connect the gun trigger control lead terminals to
the two insulated 1/4" (6.4 mm) tab terminal con-
nector bushings located below the “Gun Trigger
Connection” decal in the wire feed section (4).
Either lead can go to either connector. Form the
leads so that they are as close as possible to the
inside panel.
If the gun trigger switch being used is other than
that supplied with the Pro-MIG 135, the switch
must be a normally open, momentary switch. The
terminals of the switch must be insulated from the
welding circuit. Malfunction of the Pro-MIG 135
may result if this switch shorts to the Pro-MIG 135
welding output circuit or is common to any electri-
cal circuit other than the Pro-MIG 135 trigger cir-
cuit.
GAS CONNECTION
When using the GMAW process, a cylinder of shield-
ing gas, must be obtained. For more information about
selecting gas cylinders for use with the Pro-MIG 135
refer to the ACCESSORIES section.
2
4
3
1
FIGURE A.4
GUN INSTALLATION
As shipped from the factory, the Pro-MIG 135 is ready
to feed .023" – .025" (0.6 mm) 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, see Innershield (FCAW) Conversion in the
Accessories section.
CAUTION
CYLINDER may explode if dam-
aged. Keep cylinder upright and
chained 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.
• Keep cylinder away from welding
or other live electrical circuits.
BUILDUP OF SHIELDING GAS may
harm health or kill.
• Shut off shielding gas supply
when not in use.
• SEE AMERICAN NATIONAL
STANDARD Z-49.1, “SAFETY IN
WELDING AND CUTTING” PUB-
LISHED BY THE AMERICAN
WELDING SOCIETY.
1. Chain the cylinder to a wall or other stationary sup-
port to prevent the cylinder from falling over.
Insulate the cylinder from the work circuit and earth
ground. Refer to Figure A.5.
FIGURE A.5
A-5
INSTALLATION
Pro-MIG 135
A-5
WARNING
Cylinder Valve
Gas Hose
Flow Regulator
WARNING
2. With the cylinder securely installed, remove the
cylinder cap. Stand to one side away from the out-
let and open the cylinder valve very slightly for an
instant. This blows away any dust or dirt which may
have accumulated in the valve outlet.
BE SURE TO KEEP YOUR FACE AWAY FROM
THE VALVE OUTLET WHEN “CRACKING” THE
VALVE. Never stand directly in front of or behind
the flow regulator when opening the cylinder
valve. Always stand to one side.
3. Attach the flow regulator to the cylinder valve and
tighten the union nut securely with a wrench.
NOTE: If connecting to 100% CO
2
cylinder, make
certain the plastic washer is seated in the fitting
that attaches to the CO
2
cylinder.
4. Refer to Figure A.6. Attach one end of inlet gas
hose to the outlet fitting of the flow regulator and
tighten the union nut securely with a wrench.
Connect the other end to the Pro-MIG 135 Gas
Solenoid Inlet Fitting (5/8-18 female threads — for
CGA — 032 fitting). Make certain the gas hose is
not kinked or twisted.
WARNING
A-6
INSTALLATION
Pro-MIG 135
A-6
INPUT CONNECTIONS
Refer to Figure A.6.
The Pro-MIG 135 has a power input cable located on
the rear of the machine.
FIGURE A.6
CODE REQUIREMENTS FOR INPUT
CONNECTIONS
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.
Requirements For Rated Output
A power cord with a 15 amp, 125 volt, three prong
plug (NEMA Type 5-15P) is factory installed on the
Pro-MIG 135. Connect this plug to a mating grounded
receptacle which is connected to a 20 amp branch cir-
cuit with a nominal voltage rating of 115 to 125 volts,
60 Hertz, AC only.
The rated output with this installation is 90 amps,19
Volts, 20% duty cycle (2 minutes of every 10 minutes
used for welding).
Do not connect the Pro-MIG 135 to an input power
supply with a rated voltage that is greater than 125
volts.
Do not remove the power cord ground prong.
POWER INPUT
CABLE
GAS SOLENOID
INLET FITTING
WARNING
CAUTION
B-1
OPERATION
B-1
Pro-MIG 135
Read entire operation section before
operating the Pro-MIG 135.
ELECTRIC SHOCK can kill.
• Do not touch electrically live
parts or electrode with skin or
wet clothing. Insulate yourself
from work and ground.
• Always wear dry insulating
gloves.
FUMES AND GASES can be
dangerous.
• Keep your head out of fumes.
• Use ventilation or exhaust to
remove fumes from breathing
zone.
WELDING SPARKS can
cause fire or explosion.
• Keep flammable material away.
• Do not weld on closed contain-
ers.
ARC RAYS can burn eyes
and skin.
• Wear eye, ear and body protec-
tion.
Observe all safety information throughout
this manual.
WARNING
GENERAL DESCRIPTION
The Pro-MIG 135 is a complete semiautomatic con-
stant-voltage DC wire feeder / power source arc
welder. It has been designed for workshop, hobby,
automotive and light maintenance. Included is a tap-
switch controlled, single phase constant voltage trans-
former / rectifier power source and a wire feeder weld-
ing gun for feeding .023 - .025” (0.6 mm) through
.030” (0.8 mm) solid steel electrode. An optional kit is
available for feeding .035” (0.9 mm) Innershield
®
NR-
211-MP flux-cored wire.
The Pro-MIG 135 is ideally suited for individuals hav-
ing access to 120 volt AC input power, and 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 (self
shielded flux cored or FCAW). The Pro-MIG 135 is a
rugged and reliable machine that has been designed
for dependable service and long life.
RECOMMENDED PROCESSES
The Pro-MIG 135 can be used for welding mild steel
using the Gas Metal Arc Welding (GMAW or MIG,
Metal Inert Gas) single pass process, which requires a
supply of shielding gas, or the flux-cored arc welding
(FCAW) process using Innershield
®
electrode wire.
The Pro-MIG 135 is configured for use with the
GMAW process as delivered from the factory.
OPERATIONAL CONTROLS
The Pro-MIG 135 has the following controls as stan-
dard: Control Power ON/OFF Switch, Voltage Control,
Wire Speed Control, Trigger Switch, and a Circuit
Breaker. With the optional Spot/Stitch Timer Kit
installed, the following controls are also included:
Mode switch and Time Control.
DESIGN FEATURES
● Operates on 120 volt input — no special wiring
required.
● “Cold electrode” until gun trigger is pressed for an
added measure of safety.
● Overload protection — incorporates both a thermo-
stat and a circuit breaker.
● Quality wire drive with electronic overload protec-
tion.
● “Quick Release” idle roll pressure arm is easily
adjusted.
● Reversible, dual groove drive roll. Drive roll will
feed .023 – .025” (0.6 mm) and .030" - .035" (0.8 -
0.9 mm) diameter wire.
B-2
OPERATION
B-2
5. Gun Trigger - Activates welding output, wire feed,
and gas solenoid operation. Releasing the trigger
deactivates welding and simultaneously activates
the “burnback” function so that the welding wire
does not stick in the weld puddle.
6. Optional K695-1 Spot/ Stitch Timer Kit Controls
(see ACCESSORIES section) - If present, replaces
Blank Panel Assembly located on the center panel
inside the case door:
Mode Switch - Selects between Spot, Stitch, or
Seam (normal welding) mode. Spot mode welds
for an adjustable length of time (set by Time
Control; see below) and then stops, whenever the
gun trigger is depressed and held. Stitch mode
cycles between welding and not welding for an
adjustable length of time (also set by Time Control)
while the gun trigger is depressed. In Seam mode
the machine will weld continuously while the gun
trigger is depressed. Releasing the gun trigger in
any of the three modes will interrupt welding imme-
diately.
Time Control - In Spot mode, controls spot mode
ON time between approximately .25 and 4.0 sec-
onds. In Stitch mode, controls stitch mode ON time
and OFF time simultaneously between .25 and 4.0
seconds each. This control is deactivated while in
Seam mode.
● No external shielding gas is required when used
with Lincoln Innershield .035” (0.9 mm) NR
®
-211-
MP electrode.
● Accommodates both 4” (100 mm) diameter and 8”
(200 mm) diameter spools of wire.
● Accepts optional Spot/Stitch Timer Kit.
WELDING CAPABILITY
The Pro-MIG 135 is rated at 90 amps, 19 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 Pro-MIG
135. The Pro-MIG 135 is not recommended 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-
ing output and wire feeder
remain off until the gun trigger
is pressed.
2. Wire Speed Control —
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
setting specified on the Pro-
MIG 135 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
as damage to switch may
occur.
4. Circuit Breaker – Protects machine from damage if
maximum output is exceeded. Button will extend
out when tripped (Manual reset)
Refer to Figure B.1b
.
Pro-MIG 135
OFF
ON
ARC VOLTS
WIRE SPEED
B-3
OPERATION
B-3
FIGURE B.1a
FIGURE B.1b
WELDING OPERATIONS
SEQUENCE OF OPERATION
Wire Loading
Refer to Figures B.2 and B.3.
The machine power switch should be turned to the
OFF (“O”) position before working inside the wire feed
enclosure.
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.
Note:When loading and removing the 8” Spools make
sure that the wing nut (inside the wire spool spindle
hub) is turned 90° from the wire spool spindle locking
tab. If the wing nut is positioned in line with the locking
tab, the tab cannot be depressed to load or unload the
wire spool.
FIGURE B.2
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-
partment. A 4” (100 mm) diameter spool is mounted
directly on the 5/8” (16 mm) diameter shaft and held in
place with the previously removed hardware. Also
make certain the start end of the wire, which may pro-
trude through the side of the spool does not contact
any metallic case parts.
FIGURE B.3
Pro-MIG 135
Pro-MIG™ 135
DO NOT SWITCH
WHEN WELDING
3
2
1
6
4
+
-
Wire Spindle Shaft
To Wire Drive
4" Wire Spool
Wing Nut
and Spacer
Wire Spool must be pushed all the way on the spindle so that the
spindles tab will hold it in place. The Wire Spool will rotate clock-
wise when wire is dereeled.
Be sure that this stud engages
the hole in the wire spool.
To Wire Drive
Wire Spool Spindle
8” Wire Spool
B-4
OPERATION
B-4
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.
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
result in wire feeding problems, and may cause pre-
mature wear of wire drive system components.
Wire Threading
Refer to Figure B.4
1. Release the Spring Loaded Pressure Arm (1)
rotate the Idle Roll Arm (2) away from. the Wire
Feed Drive Roll (3). Ensure that the groove size in
the feeding position on the drive roll matches the
wire size being used.
2. Carefully detach the end of the wire from the
spool. To prevent the spool from unwinding,
maintain tension on the wire until after step 5.
3. Cut the bent portion of wire off and straighten the
first 4” (100 mm).
4. Thread the wire through the In-going guide tube
(4), over the drive roll (3), and into the out-going
guide tube (5).
5. Close the idle roll arm (2) and latch the spring
loaded pressure arm (1) in place. Rotate the spool
counterclockwise if required in order to take up
extra slack in the wire.
6. The idle roll pressure adjustment wing nut is factory
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
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
increased until the wire feeds properly.
When inching the welding wire, the drive rolls, the
gun connector block and the gun contact tip are
electrically energized relative to work and ground
and remain energized for several seconds after
the gun trigger is released.
FIGURE B.4
7. Refer to Figure B.5. Remove gas nozzle and con-
tact tip from end of gun.
8. Turn the Pro-MIG 135 ON (“I”).
9. Straighten the gun cable assembly.
10. Depress the gun trigger switch and feed welding
wire through the gun and cable. (Point gun away
from yourself and others while feeding wire.)
Release gun trigger after wire appears at end of
gun.
11. Turn the Pro-MIG 135 OFF (“O”).
12. Replace contact tip and gas nozzle.
13. Refer to Figure B-6. Cut the wire off 1/4”– 3/8” (6
– 10 mm) from the end of the tip. The Pro-MIG
135 is now ready to weld.
FIGURE B.5
Pro-MIG 135
WARNING
The Wire Drive Feed Roll can
accommodate two wire sizes
by flipping the wire drive feed
roll over.
1
2
3
4
5
Gun Handle
Gas Diffuser/
Contact Tip
Gas Nozzle
B-5
OPERATION
B-5
FIGURE B.6
Making A Weld
1. See “Process Guidelines” in this section for selec-
tion of welding wire and shielding gas and for
range of metal thicknesses that can be welded.
2. See the Application chart on the inside of the wire
feed compartment door for information on setting
the Pro-MIG 135 controls. Refer to Table B.1 for
aluminum and stainless wire.
3. Set the Voltage (“V”) and Wire Speed (“olo’”) con-
trols to the settings suggested for the welding wire
and base metal thickness being used, refer to
Applications chart on the inside of the wire drive
compartment door.
4. Check that the polarity is correct for the welding
wire being used and that the gas supply, if
required, is turned on.
5. When using Innershield electrode, remove the gas
nozzle and install the gasless nozzle. This will
improve visibility of the arc and protect the gas dif-
fuser from weld spatter. Refer to the MAINTE-
NANCE section for details on nozzle replacement.
FIGURE B.7
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
Safety Precautions” in the beginning of this manu-
al.
7. Position gun over joint. End of wire may be lightly
touching the work.
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).
9. To stop welding, release the gun trigger and then
pull the gun away from the work after the arc goes
out.
10. When no more welding is to be done, close valve
on gas cylinder (if used), momentarily operate gun
trigger to release gas pressure, and turn off the
Pro-MIG 135.
Cleaning Tip And Nozzle
Clean the contact tip and nozzle to avoid arc bridging
between the nozzle and contact tip which can result in
a shorted nozzle, poor welds and an overheated gun.
Hint: Anti-stick spray or gel, available from a welding
supply distributor, may reduce buildup and aid in spat-
ter removal.
PROCESS GUIDELINES
The Pro-MIG 135 can be used for welding mild steel
using the GMAW, single pass, process which requires
a supply of shielding gas or it can be used for the self-
shielded, Innershield
®
process (FCAW).
The recommended gases and electrodes for GMAW
are welding grade CO
2
gas or an argon-CO
2
blended
gas (75 to 80% argon and 25 to 20% CO
2
) and .025"
(0.6 mm) diameter Lincoln L-56 mild-steel welding
wire, supplied on 12-1/2 lb (5.7 kg) spools.
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.
This electrode can be used for all position welding of
20 gauge (1.0 mm) through 5/16" (8 mm) steel.
Thickness of 1/4" (6 mm) and 5/16" (8 mm) require
multiple passes. This wire can also be used for the
welding of galvanized coated sheet metal.
Pro-MIG 135
3/8" – 1/2" Electrical Stickout
Contact Tip
Wire Electrode
WORKPIECE
GUN CABLE
ARC
WORK CLAMP
Pro-MIG
™ 135
B-6
OPERATION
B-6
The Pro-MIG 135 is suitable for .035" aluminum wire
and .030" stainless wire. Refer to Table B.1 for recom-
mended procedure settings (requires K499 Argon
Regulator Kit).
TABLE B.1
CHANGING MACHINE OVER TO
FEED OTHER WIRE SIZES
The Pro-MIG 135 is shipped from the factory ready to
feed .023”-.025” (0.6 mm) diameter wire. To operate
the Pro-MIG 135 with other sizes of wire, it is neces-
sary to change the contact tip and change the drive
roll over to other sizes. Refer to Changing the Contact
Tip and Changing the Drive Roll, in the MAINTE-
NANCE section, for specific information on these pro-
cedures.
WELDING WITH GMAW (MIG)
Shielding Gas
When using the GMAW process, obtain and install a
gas regulator and hose kit; K463 (for CO
2
) or K499
(Argon mixed) gas regulator and hose kit.
1. For CO
2
, open the cylinder very slowly. For argon-
mixed gas, open cylinder valve slowly a fraction of
a turn. When the cylinder pressure gauge pointer
stops moving, open the valve fully.
2. If using a regulator with an adjustable flow meter,
close the gun trigger and adjust the flow to give 15
– 20 cubic ft per hour (CFH) (7 – 10 I/min.) [use 20
– 25 CFH (10 – 12 I/min.) when welding out of
position or in a drafty location for CO
2
]. For argon
mixed gas, trigger to release gas pressure, and
adjust the flow to give 25 – 30 CFH (12 – 14
I/min.).
3. Keep the cylinder valve closed, except when using
the Pro-MIG 135. When finished welding:
a) Close the cylinder valve to stop gas flow.
b) Depress the gun trigger briefly to release the
pressure in the gas hose.
c) Turn off the Pro-MIG 135.
WELDING WITH FCAW (Innershield)
When using the FCAW process, the correct drive roll
and electrode polarity must be used. See Work Cable
Installation in INSTALLATION section for changing
the polarity.
Innershield welding kit K549-1 (for .035" / 0.9mm) is
also available.
OVERLOAD PROTECTION
Output Overload
The Pro-MIG 135 is equipped with a circuit breaker
and a thermostat which protects the machine from
damage if maximum output is exceeded. The circuit
breaker button will extend out when tripped. The cir-
cuit breaker must be manually reset.
Thermal Protection
The Pro-MIG 135 has a rated output duty cycle of
20%. If the duty cycle is exceeded, a thermal protector
will shut off the output until the machine cools to a
reasonable operating temperature. This is an auto-
matic function of the Pro-MIG 135 and does not
require user intervention. The fan continues to run
during cooling.
Electronic Wire Drive Motor Protection
The Pro-MIG 135 has built-in protection for wire drive
motor overload.
Pro-MIG 135
Shielding
Voltage/Wire Speed
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
4043 Aluminum
Wire
MIG DC+ .035 Dia 100% Argon B-5 C-7 D-9 D-10
5356 Aluminum
Wire
MIG DC+ .030 Dia 98% Argon/ A-3 C-6 D-7.5 D-7.5
308L Stainless 2% Oxygen
Steel Wire
B-7
LEARNING TO WELD
B-7
LEARNING TO WELD
No one can learn to weld simply by reading about
it. Skill comes only with practice. The following
pages will help the inexperienced operator to under-
stand welding and develop this skill. For more detailed
information, order a copy of “New Lessons in Arc
Welding” listed at the end of this manual.
THE ARC-WELDING CIRCUIT
The operator’s knowledge of arc welding must go
beyond the arc itself. The operator must know how to
control the arc, and this requires a knowledge of the
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
circuit begins where the gun cable is attached to the
welding machine. Current flows through the gun
cable, gun, and contact tip, to the wire and across the
arc. On the work side of the arc, current flows through
the base metal to the work cable and back to the
welding machine. This circuit must be complete for the
current to flow.
This machine’s welding circuit has a voltage output of
32 volts DC maximum. This voltage is quite low and is
only present when the gun triggers depressed.
To weld, the work clamp must be tightly connected to
clean base metal. Remove paint, rust, dirt or oil as
necessary and connect the work clamp as close as
possible to the area you wish to weld. This helps pre-
vent current from going through an unwanted path.
Avoid allowing the welding circuit to pass through
hinges, bearings, electronic components, or similar
devices that can be damaged. See Figure B.8. Always
disconnect electrical devices before welding upon
them.
FIGURE B.8
Fumes and slag generated from
Innershield type electrodes recom-
mended for use with this welding
machine can be toxic.
• Avoid contact with eyes and skin.
• Do not take internally.
• Keep out of reach of children.
• Follow all safety precautions
found in this operating manual.
The gun and cable assembly is held by the operator
who guides the automatically fed wire along the joint,
maintaining a contact tip to work distance of about 3/8
to 1/2 inch (10 – 12 mm) This is called electrical stick-
out. This electrical stickout (ESO) must be properly
maintained by the operator. The electric arc is made
in the gap between the work and the tip end of a small
diameter wire. When the power source is properly set,
the arc gap is maintained automatically.
Arc welding is a manual skill requiring a steady hand,
good physical condition, and good eyesight. The oper-
ator controls the welding arc, and, therefore, the quali-
ty of the weld made.
THE SELF-SHIELDED FCAW (FLUX
CORE) WELDING ARC
Figure B.9 illustrates the action taking place in the self
shielded FCAW (Innershield) welding arc. It closely
resembles what is actually seen while welding.
FIGURE B.9
Pro-MIG 135
Electronic Components
Hinges
Bearings
WARNING
Burning of core materials
inside wire electrode
results in shield of gas.
Arc Stream
Cored Wire
Protective Slag
Weld Metal
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Lincoln Electric Pro-MIG 135 Manuel utilisateur
- Catégorie
- Système de soudage
- Taper
- Manuel utilisateur
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