RED FORCE Mega Force 140i MP User manual

Operator’s Manual
IM10462 | Issue D ate Apr-18
© Lincoln Global, Inc. All Rights Reserve .
For use with Co e Numbers:
12769
Mega Force®140i MP ®
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Hours of Operation:
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Use “Ask the Experts” at lincolnelectric.com
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no later than the following business ay.
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For Service in Mexico:
Email:
[email protected]
Save for future reference
Date Purchased
Code: (ex: 10859)
Serial: (ex: U1060512345)
LINCOLN ELECTRIC MÁQUINAS S. DE R.L. DE C.V.
Cerrada San José No. 15 Fracc. Ind. Ferropuerto Laguna C.P. 27400 Torreón, Coah.
Ph: [phone] Fax: [phone]
www.lincolnelectric.com.mx

THANK YOU FOR SELECTING
A QUALITY PRODUCT BY
LINCOLN ELECTRIC.
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.
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 thoughtful 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.
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.
KEEP YOUR HEAD OUT OF THE FUMES.
DON’T get too close to the arc.
Use corrective lenses if necessary
to stay a reasonable distance
away from the arc.
READ and obey the Safety Data
Sheet (SDS) and the warning label
that appears on all containers of
welding materials.
USE ENOUGH VENTILATION or
exhaust at the arc, or both, to
keep the fumes and gases from
your breathing zone and the general area.
IN A LARGE ROOM OR OUTDOORS, natural ventilation may be
adequate if you keep your head out of the fumes (See below).
USE NATURAL DRAFTS or fans to keep the fumes away
from your face.
If you develop unusual symptoms, see your supervisor.
Perhaps the welding atmosphere and ventilation system
should be checked.
WEAR CORRECT EYE, EAR &
BODY PROTECTION
PROTECT your eyes and face with welding helmet
properly fitted and with proper grade of filter plate
(See ANSI Z49.1).
PROTECT your body from welding spatter and arc
flash with protective clothing including woolen
clothing, flame-proof apron and gloves, leather
leggings, and high boots.
PROTECT others from splatter, flash, and glare
with protective screens or barriers.
IN SOME AREAS, protection from noise may be appropriate.
BE SURE protective equipment is in good condition.
Also, wear safety glasses in work area
AT ALL TIMES.
SPECIAL SITUATIONS
DO NOT WELD OR CUT containers or materials which previously
had been in contact with hazardous substances unless they are
properly cleaned. This is extremely dangerous.
DO NOT WELD OR CUT painted or plated parts unless special
precautions with ventilation have been taken. They can release
highly toxic fumes or gases.
Additional precautionary measures
PROTECT compressed gas cylinders from excessive heat,
mechanical shocks, and arcs; fasten cylinders so they cannot fall.
BE SURE cylinders are never grounded or part of an
electrical circuit.
REMOVE all potential fire hazards from welding area.
ALWAYS HAVE FIRE FIGHTING EQUIPMENT READY FOR
IMMEDIATE USE AND KNOW HOW TO USE IT.
WARNING
CAUTION
Safety 01 of 04 - 5/16/2018

SECTION A:
WARNINGS
CALIFORNIA PROPOSITION 65 WARNINGS
WARNING: Breathing diesel engine exhaust
exposes you to chemicals known to the State
of California to cause cancer and birth defects,
or other reproductive harm.
• Always start and operate the engine in a
well-ventilated area.
• If in an exposed area, vent the exhaust to the outside.
• Do not modify or tamper with the exhaust system.
• Do not idle the engine except as necessary.
For more information go to
www.P65 warnings.ca.gov/diesel
WARNING: This product, when used for welding or
cutting, produces fumes or gases which contain
chemicals known to the State of California to cause
birth defects and, in some cases, cancer. (California
Health & Safety Code § 25249.5 et seq.)
WARNING: Cancer and Reproductive Harm
www.P65warnings.ca.gov
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 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 vaporizing 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.
1.h. To avoid scalding, do not remove the radiator
pressure cap when the engine is hot.
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 pos-
sible to the area being welded.
2.d.5. Do not work next to welding power source.
SAFETY
Safety 02 of 04 - 5/16/2018

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.
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.
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
hardfacing (see instructions on container or SDS)
or on lead or cadmium plated steel and other
metals or coatings which produce highly toxic
fumes, keep exposure as low as possible and
within applicable OSHA PEL and ACGIH TLV limits
using local exhaust or mechanical ventilation
unless exposure assessments indicate otherwise.
In confined spaces or in some circumstances,
outdoors, a respirator may also be required.
Additional precautions are also required when
welding
on galvanized steel.
5. b. The operation of welding fume control equipment is affected by
various factors including proper use and positioning of the
equipment, maintenance of the equipment and the specific
welding procedure and application involved. Worker exposure
level should be checked upon installation and periodically
thereafter to be certain it is within applicable OSHA PEL and
ACGIH TLV limits.
5.c. 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.d. 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.e. Read and understand the manufacturer’s instructions for this
equipment and the consumables to be used, including the
Safety Data Sheet (SDS) and follow your employer’s safety
practices. SDS forms are available from your welding
distributor or from the manufacturer.
5.f. Also see item 1.b.
SAFETY
Safety 03 of 04 - 5/16/2018

WELDING AND CUTTING
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 circuits. This can create fire
hazards or overheat lifting chains or cables until they fail.
6.h. Also see item 1.c.
6.I. Read and follow NFPA 51B “Standard for Fire Prevention During
Welding, Cutting and Other Hot Work”, available from NFPA, 1
Batterymarch Park, PO box 9101, Quincy, MA 022690-9101.
6.j. Do not use a welding power source for pipe thawing.
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, 14501 George Carter Way
Chantilly, VA 20151.
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.
Refer to
http://www.lincolnelectric.com/safety
for additional safety information.
SAFETY
Safety 04 of 04 - 5/16/2018

2
MEGA FORCE®140i MP®
TABLE OF CONTENTS
PAGE
INTALLATION............................................................................................................................................... ection A
TECHNICAL SPECI ICATIONS - ..................................................................................................................................A-1
ENVIRONMENTAL RATING .........................................................................................................................................A-1
LOCATION AND MOUNTING........................................................................................................................................A-1
GENERATOR REQUIREMENTS.....................................................................................................................................A-1
CASE RONT CONTROLS........................................................................................................................................... A-2
CASE BACK CONTROLS............................................................................................................................................. A-2
INTERNAL CONTROLS................................................................................................................................................A-3
OPERATION ..................................................................................................................................................ection B
HIGH REQUENCY PROTECTION.................................................................................................................................B-1
GRAPHIC SYMBOLS USED IN THIS MANUAL OR BY THIS MACHINE.............................................................................B-1
SETTING UP AND MAKING A MIG WELD.....................................................................................................................B-2
INPUT AND GROUND CONNECTIONS..........................................................................................................................B-2
GUN AND CABLE INSTALLATION................................................................................................................................B-3
SHIELDING GAS ( OR MIG ARC WELDING PROCESSES)..............................................................................................B-3
OUTPUT POLARITY CONNECTIONS.............................................................................................................................B-4
PROCEDURE OR CHANGING DRIVE ROLL..................................................................................................................B-5
POWER-UP SEQUENCE.............................................................................................................................................. B-5
CURRENT OR VOLTAGE BASED ON DIAL POSITION.....................................................................................................B-6
.035 MIG WIRE, .035 OUTERSHIELD 71M, .035 NR-211MP PROCEDURES................................................................. B-6
TIG SETUP AND USE..................................................................................................................................................B-7
OPTION AND ACCE ORIE .........................................................................................................................ection C
MAINTENANCE .............................................................................................................................................. ection D
ROUTINE MAINTENANCE............................................................................................................................................D-1
PERIODIC MAINTENANCE...........................................................................................................................................D-2
TROUBLE HOOTING.......................................................................................................................................ection E
PART LI T ...............................................................................................................PART .LINCOLNELECTRIC.COM
CONTENT/DETAILS MAY BE CHANGED OR UPDATED WITHOUT NOTICE. OR MOST CURRENT INSTRUCTION MANUALS, GO
TO PARTS.LINCOLNELECTRIC.COM.

3
DESCRIPTION MEGA FORCE®140i MP®
General Description
This multi-process welding machine is intended for light
fabrication, maintenance, home and auto-body shops. The unit is
housed in a portable and rugged case, and features an intuitive
user interface with a push button for selecting processes and two
knobs for adjusting welding parameters. The machine also
features a cast aluminum wire drive system for reliable wire
feeding and an integrated switch for activating a Magnum®Pro
100SG spool gun. The multi-process machine is designed to be
connected to 120VAC single phase 60 Hz power.
This machine is capable of MIG, CAW, TIG, and STICK welding.
The machine can support 4-inch and 8-inch spools of wire for MIG
and CAW welding. The machine is intended for the following wire
diameters and composition; SuperArc®L-56® .025” through
.035” solid steel, self-shielded NR®-211MP .030” and .035”, and
Outershield®71M .035” CAW-GS. Welding aluminum ER4043
.035” requires use of the Magnum®Pro 100SG Spool Gun. An
integrated spool gun switch is pre-installed from the factory and
located above the wire drive. The machine also permits TIG
welding with .040, 1/16” and 3/32” tungsten and STICK welding
with up to 3/32” electrode.
inclUDeD accessories
1 Magnum®Pro 100L gun
2 Work cable with clamp
3 Spare contact tips
4 Gas regulator* and gas hose
5 Gas and gasless nozzle
6 Electrode holder and cable
7 Sample spool of MIG and CAW wire
8 Quick Start guide and literature
* The gas regu ator knob is ocated in the wire drive compartment and must
be assemb ed to the regu ator.
5
4
7
2
1
6
3 8

A-1
INSTALLATION MEGA FORCE®140i MP®
INSTALLATION
TECHNICAL SPECIFICATIONS -
*Max wire feed speed achieved with a spoo gun
Therma tests have been performed at ambient temperature. The duty
cyc e (duty factor) at 40°C has been determined by simu ation.
select sUitable location
Place the machine on a secure, level surface or recommended
undercarriage. The machine may topple over if this procedure is
not followed. To minimize over heating, locate the welder in a dry
location where there is free circulation of clean air. Do not place
on combustible surfaces.
The machine is capable of higher duty cycles at lower output
currents or higher amperages at lower duty cycles. An overview
of the machine’s input and output capabilities are available on the
rating plate located on the back of the machine.
location anD MoUntinG
The welding machine will operate in harsh environments. Even so,
it is important that preventative measures are followed in order to
assure long life, reliability, and safe operation.
• The welding machine must be located in an area with
circulation of clean air such that air moves in the back of the
machine and out the front louvers.
• Dirt and dust that can be drawn into the welding machine
should be kept to a minimum. ailure to observe these
precautions can result in excessive operating temperatures,
nuisance thermal trips and potential failures.
environMental ratinG
The welding power source carries an IP21S rating. It may be used
in normal industrial and commercial environments. Avoid using in
areas where water / rain is present.
Read and follow the ‘Electric Shock Warnings’ in the safety section
if welding must be performed under electrically hazardous
conditions such as welding in wet areas or water on the work
piece.
enGine Driven Generator
The machine is designed to operate on engine driven generators as
long as the auxiliary can supply adequate voltage, frequency and
power as indicated in the “Technical Specification” Installation
Section of this manual. The auxiliary supply of the generator must
also meet the following conditions:
Frequen y: 60 Hz
RMS voltage of the AC waveform: 90-140 V; Out of this range will
trigger undervoltage and overvoltage protections.
Generator Minimum 6 kW
It is important to check these conditions because many engine driven
generators produce high voltage spikes. Operation of this machine
with engine driven generators not conforming to these conditions is
not recommend and may damage the machine and is also NOT
covered by warranty.
INPUT VOLTAGE AND CURRENT
Duty Cy le
(Output) Input Voltage Input Amperes
Max Idle Amps
60% OR MIG 120 V~ 20 A .7A
RECOMMENDED INPUT WIRE AND FUSE SIZES
Voltage/Phase/
Frequen y
Input Amperes
Effe tive
Fuse (Super Lag) or
Breaker Size
120/1/60Hz 15 A 20 A
PHYSICAL DIMENSIONS
Height Width Depth Weight
13.6”
(345mm)
8.9”
(224mm)
18.1”
(460mm)
34.5 lbs.
(15.6 kg)
WELDING PROCESSES
Pro ess Ele trode Diameter
Range
Output Range
(Amperes)
Wire Feed
Speed Range
MIG .025-.035”
( 0.6-0.9mm) 20-140 40-500* IPM
CAW .030-.035”
(0.8-0.9mm) 20-140 40-400 IPM
TIG .040, 1/16, 3/32”
(1.0, 1.6MM, 2.4mm) 10-120 NA
STICK Up to 3/32”
(2.4mm) 25-90 NA
TEMPERATURE RANGES
Operating
Temperature -4° TO 104° (-20°C TO 40°C)
Storage
Temperature -40° TO 185° (-40°C TO 85°C)
WELDING PROCESSES
Pro ess Duty Cy le Amperage Voltage
MIG & CAW 60% 95 AMPS 18.75 VOLTS
TIG 60% 115 AMPS 14.6 VOLTS
STICK 60% 80 AMPS 23.2 VOLTS
REGULATORY RE UIREMENTS
Market Conformity Mark Standard
MÉXICO NOM NMX-J-038-1
ANSE 2016

A-2
INSTALLATION MEGA FORCE®140i MP®
case Front controls
FIGURE A.1
1. Voltage/Amperage Adjustment Knob – While in WIRE
mode, this knob adjusts the value of the voltage output. While
in TIG or STICK mode, this knob adjusts the value of the
amperage output.
2. Wire Feed peed Adjustment Knob – While in WIRE mode,
this knob adjusts the wire feed speed setting. While in TIG or
STICK mode, this knob is inactive.
3. Input/Output Voltage and Temperature LEDs – The top LED
will illuminate when Input power is present and the machine
is turned on. The middle LED will illuminate when the
machine has thermally tripped. Once the machine has cooled,
the machine will reset and the thermal light will turn off. The
middle LED will flash if the input voltage is above 140 VAC or
below 90 VAC. The middle LED will also flash when power is
removed from the machine. The bottom LED illuminates when
the machine is welding or ready to weld. Safety precautions
must be followed when the machine is welding or ready to
weld. The bottom LED will flash when a short is present.
4. Process election Button – Allows the user to toggle
between processes. The corresponding LED above the button
will indicated the current process.
5. Brass Gun connection– Permits attachment of a MIG
welding gun, TIG torch or spool gun. Ensure the gun or torch
is fully seated into the brass receptacle and tighten the thumb
screw.
6. Eight Pin Connector – Permits triggering the machine for
MIG, CAW, aluminum MIG or TIG welding when a foot pedal
is attached. Also triggers gas flow for MIG, aluminum MIG,
and TIG. Connect the 8-pin connector present on the welding
gun or foot pedal to the receptacle.
7. Wire Drive Polarity Lead – Permits configuring the wire drive
to positive or negative polarity by inserting into the positive or
negative receptacle. Ensure connector is tightly locked into
place by rotating clockwise.
8. Negative Output Receptacle – Permits attaching a work
lead, electrode stinger, or the center wire drive polarity lead
to DC negative polarity. Rotate connector clockwise to lock
into place.
9. Positive Output Receptacle – Permits attaching a work lead,
electrode stinger, or the center wire drive polarity lead to DC
positive polarity. Rotate clockwise to lock into place.
case back controls
FIGURE A.2
1. Power witch – Permits turning the machine on or off.
2. Thermal Breaker – The welding machine features a
resettable 25amp thermal breaker. If the current conducted
through the breaker exceeds 25 amps for an extended period
of time, the breaker will open and require manual reset.
3. Input Power Cord – Permits the machine to be connected to
120VAC input.
4. Integrated gas solenoid – permits connecting the proper
shielding gas
1
2
3
8
9
7
6
5
4
1
2
3
4

A-3
INSTALLATION MEGA FORCE®140i MP®
internal controls
FIGURE A.3
1. Wire Drive pindle – Supports a 4-inch or 8-inch spool of
wire. The center wing-nut can be adjusted to increase tension
on the wire. or 4-inch spools, the hub adapter must be
removed.
2. pool Gun witch – Permits toggling between standard push
gun welding with the Magnum Pro®100L or aluminum
welding with the Magnum Pro®100SG Spool Gun.
3. Wire Drive Tension Pressure Adjustment – Permits
increasing or decreasing the pressure applied to the top drive
roll.
4. Replaceable drive roll - Select the correct drive roll groove
for the wire diameter being fed.
5. Gun Connector Block – Permits securing a welding gun to
the wire drive by ensuring the gun connector is fully seated,
then tightening the knob.
6. Cutouts– A cut out in case back and side allows the input
cord and wire drive polarity lead to be coiled and placed in
the wire drive compartment for ease of transportation.
6
6
2
3
4
5
1

B-1
OPERATION
OPERATION
Read and understand this entire section before operating
your machine
Safety Precautions
Do not attempt to use this equipment until you have
thoroughly read all operating and maintenance manuals
supplied with your equipment and any related welding
machine it will be used with. They include important safety
precautions, operating and maintenance instructions and
parts lists.
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts such
as output receptacles or internal
wiring.
• Insulate yourself from the work and
ground.
• Always wear dry insulating gloves.
• This welder must be grounded to earth
WELDING SPARKS can cause fire
or explosion.
• Keep flammable material away.
• Do not weld upon containers which have
held combustibles.
ARC RAYS can burn.
• Wear eye, ear and body protection.
FUMES AND GASES can
be dangerous.
Although the removal of the particulate
matter from welding smoke may reduce
the ventilation requirement, concentrations
of the clear exhausted fumes and gases may still be
hazardous to health. Avoid breathing concentrations of
these fumes and gases. Use adequate ventilation when
welding. See ANSI Z49.1, "Safety in Welding and Cutting",
published by the American Welding Society.
HiGH FreqUency protection
The high frequency generator being similar to
a radio transmitter may cause interference to
radio, TV and other electronic equipment.
•These problems may be the result of radiated inter-
ference. Proper grounding methods can reduce or
eliminate this.
During operation, distance the welding machine from radio
controlled machinery. The normal operation of the welding
machine may adversely affect the operation of R controlled
equipment, which may result in bodily injury or damage to the
equipment.
GrapHic syMbols UseD in tHis ManUal or by
tHis MacHine
WARNING
CAUTION
MEGA FORCE®140i MP®
INPUT POWER
ON
OPEN CIRCUIT
VOLTAGE
INPUT VOLTAGE
OUTPUT VOLTAGE
INPUT CURRENT
OUTPUT CURRENT
PROTECTIVE
GROUND
WARNING OR CAUTION
EXPLOSION
DANGEROUS VOLTAGE
SHOCK HAZARD
READ INSTRUCTION
MANUAL
OFF
HIGH TEMPERATURE
CIRCUIT BREAKER
INVERTER
NEGATIVE OUTPUT
POSITIVE OUTPUT
WIRE FEEDER STATUS
INPUT POWER
DIRECT CURRENT
U0
U1
U2
I1
I2

B-2
OPERATION
settinG Up anD MakinG a MiG WelD WitH
.025 MiG Wire
A. Items needed for MIG welding
1. 025”(0.6mm) Contact Tip
2. Metal gun nozzle
3. actory Installed Dual-groove Drive Roll
4. .025”(0.6mm) SuperArc®L-56®Solid MIG Wire
5. Welding Gun
6. Work Cable & Clamp (see assembly below)
7. Gas Line
8. Gas Regulator
Bottle of 75/25 Ar/CO2shielding gas or 100% CO2shielding
gas (note this requires a CO2regulator adapter which is sold
separately.
FIGURE B.1
WORK CLAMP ASSEMBLY
inpUt anD GroUnD connections
1. Before starting the installation, check with the local power
company if there are any questions about whether your power
supply is adequate for the voltage, amperes, phase, and
frequency specified on the welder rating plate. Also be sure
the planned installation will meet the U.S. National Electrical
Code and local code requirements.
2. Using the instructions in igure B.2, have a qualified
electrician connect a receptacle (Customer Supplied) or cable
to the input power lines and the system ground per the U.S.
National Electrical Code and any applicable local codes. or
cords over 100 foot, larger copper conductors should be
used. use the two hot lines with super lag type fuses as
shown in the following diagram. The center contact in the
receptacle is for the grounding connection. A green wire in
the input cable connects this contact to the frame of the
welder. This ensures proper grounding of the welder frame
when the welder plug is inserted into a grounded receptacle.
FIGURE B.2
Connect to a system grounding wire. See the United States
National Electrical Code and/or local codes for other details and
means for proper grounding. Connect to hot wires of a three-wire,
single phase system.
This welding machine must be connected to a power source
in accordance with applicable electrical codes.
Do not connect the machine to an input power supply with a
rated voltage that is greater than 125 volts.
Do not remove the power cord ground prong.
EXTENSION CORD USAGE
If an extension cord is required, use one that is rated for the
application and is 3 conductor #14 AWG (2.1 mm2) or larger. The
recommended maximum lengths are 25 ft (7.5 m) if #14 AWG
(2.1 mm2) is used and 50 ft (15 m) if #12 AWG (3.3 mm2) is used.
4
3
2
6
5
1
7
8
75/25
MIXES
.025
L-56 MIG WIRE
CO
100%
2
(REQUIRES ADAPTER
SOLD SEPARATELY)
Strain
Relief
Hole
Work/Ground
Cable
PlaceLug
Between
Nuts
Donotremove
bottomnut
WARNING
WARNING
MEGA FORCE®140i MP®

B-3
OPERATION
GUn anD cable installation
The Magnum PRO 100L gun and cable provided with the welding
machine is factory installed with a liner for .025-.035”
(0.6-0.9mm) wire and an .035” (0.9mm) contact tip. The user
should ensure that the contact tip, liner, and drive rolls match the
size of the wire being used. or .030 wire, use the .035 drive roll
configuration.
Turn the welder power switch “off” before installing gun and
cable.
1. Lay the cable straight.
2. Unscrew the hand screw which is threading into the gun
adapter.
3. Insert the male end of the gun into the female end of the gun
adapter through the opening in the front panel. Ensure the
connector is fully inserted. Then tighten the hand screw.
4. Connect the gun trigger connector from the gun and cable to
the mating receptacle located on the machine case front.
Make sure that the keyways are aligned, insert and tighten
the retaining ring.
sHielDinG Gas (For MiG arc WelDinG
processes)
Customer must provide cylinder of appropriate type shielding gas
for the process being used.
A gas flow regulator, for Argon Blend gas, and an inlet gas hose
are factory provided with the welding machine. When using 100%
CO2an additional adapter will be required to connect the regulator
to the gas bottle. Aluminum welding with a spool gun requires
100% Argon shielding gas.
CYLINDER may explode if damaged.
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.
Install Shielding gas supply as follows:
1. Set the gas cylinder on a flat surface and secure the cylinder
to a sturdy structure to prevent the cylinder from falling over.
2. Remove the cylinder cap. Inspect the cylinder valves and
regulator for damaged threads, dirt , dust, oil, or grease.
Remove dust and dirt with a clean cloth.
DO NOT ATTACH THE REGULATOR IF OIL, GREA E, OR DAMAGE I
PRE ENT! Inform your gas supplier of this condition. Oil or
grease in the presence of high pressure oxygen is explosive.
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.
The user should distance his or her body from the valve outlet
when “cracking” the valve.
3. Stand to one side away from the outlet and open the cylinder
valve for an instant. This will eradicate any dust or dirt which
may have accumulated in the valve outlet.
4. Attach the flow regulator to the cylinder valve and tighten the
union nut(s) securely with a wrench.
NOTE: If connecting to 100% CO2cylinder, an additional regulator
adapter must be installed between the regulator and cylinder
valve. If adapter is equipped with a plastic washer, be sure it
is seated for connection to the CO2cylinder.
5. Attach one end of the inlet gas hose to the outlet fitting of the
flow regulator, the other end to the welding machine’s rear
fitting, and tighten the union nuts with a wrench.
WARNING
WARNING
WARNING
MEGA FORCE®140i MP®

B-4
OPERATION
6. Before opening the cylinder valve, turn the regulator adjusting
knob counterclockwise until the adjusting spring pressure is
released.
7. While standing to one side, open the cylinder valve slowly a
fraction of a turn. When the cylinder pressure gauge pointer
stops moving, open the valve fully.
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.
8. The flow regulator is adjustable. Adjust the regulator to the
flow rate recommended for the procedure and process.
BUILDUP OF SHIELDING GAS
may harm health or kill.
Shut off shielding gas supply when not in
use.
oUtpUt polarity connections
The welding machine features a short lead protruding from the
front of the machine, the lead can be used to configure the wire
drive polarity. or STICK welding the short lead does not need to
be connected and this lead will not be electrically hot. or CAW,
MIG, and TIG welding this lead can be connected to either the
positive output stud or negative output stud. Connecting the lead
to the positive stud will electrically connect the wire drive to
positive polarity; the work clamp would then connect to the
negative stud. Ensure connector is tightly locked into place by
rotating clockwise.
FIGURE B.3 WIRE DRIVE CONNECTED
FOR NEGATIVE POLARITY
FIGURE B.4 WIRE DRIVE CONNECTED
FOR POSITIVE POLARITY
WARNING
WARNING
MEGA FORCE®140i MP®

B-5
OPERATION
proceDUre For cHanGinG Drive roll
1. Turn off the power source.
2. Release the pressure on the idle roll by swinging the
adjustable pressure arm down toward the back of the
machine, allowing the tensioner to spring open.
3. Remove the drive roll retaining hand screw by turning counter
clockwise and remove the drive roll.
4. Remove and reinstall the drive roll based on wire to be used.
NOTE: be sure that the gun liner and contact tip are also sized to
match the selected wire size.
5. Manually feed the wire from the wire reel, through the wire
guide, over the drive roll groove, and into the back of the gun
adapter and gun and cable assembly.
6. Swing the tensioner back onto the wire and reposition the
adjustable pressure arm to its original position to apply
pressure. Adjust pressure as necessary.
FIGURE B.5
poWer-Up seqUence
1. Check that the electrode polarity is correct for the process
being used. Refer to the quick start guide for polarity. Then
turn the power switch ON. The fans will come on and stay on
until power to the machine is removed.
2. Configure the machine for the desired process and
application. Use the Process Selection Button to select the
desired welding process (WIRE, STICK, TIG). Use the
adjustment knobs to set the parameters specified by the
Procedure Decal for your desired welding condition.
3. If you are running a WIRE process, remove the contact tip,
then feed the wire through the liner to the gun tip. Replace
the contact tip then cut the wire within approximately 3/8”
(10 mm) from the end of the contact tip.
4. If shielding gas is to be used, turn on the gas supply and set
the gas to the required flow rate as specified by the
Procedure Decal located on the door.
5. When using an Innershield electrode, the gas nozzle may be
removed and replaced with the gasless nozzle. This will
provide increased visibility and eliminate the possibility of the
gas nozzle overheating.
6. Connect the work cable to the metal to be welded. The work
clamp must make a good electrical contact with the piece
being welded. The work must also be grounded as stated in
“Arc Welding Safety Precautions.”
or additional output ratings reference the rating plate present on
the back of the machine.
The duty cycle is the “on” time (based on a 10 minute interval) the
user can weld with the machine at a specific output without
causing a thermal trip.
Example: 60% duty cycle means welding at a specified output for
6 constant minutes and needing 4 minutes of “off” time before
welding again.
If the duty cycle of the machine is exceeded, then the machine will
thermally trip and the Thermal LED will Illuminate. The machine
must cool down before welding can be performed.
Input Line Volt ge V ri tions
High Line Voltage/Low Line Voltage – The welding machine will
operate between 90 and 140 VAC 60 Hz. If the input voltage is too
low or too high then the thermal LED will blink.
DRIVE ROLLS
Wire Diameter & Type Smooth Drive Roll
(Dual Grooves)
Drive Roll Part
Number
.025”(0.6mm) MIG wire Use .025”(0.6mm)
Drive Roll Groove
KP2948-1
.030”(0.8mm) MIG wire
Use .035”(0.9mm)
Drive Roll Groove
.035”(0.9mm) MIG wire
.030”(0.8mm) flux-cored
.035”(0.9mm) flux-cored
is Enabled.
d
Caution:
.Error Detectedor
for Machine to reset.
- Wait
y y
M h
uD
.ONMachine is powered
ty Cycle Exceeded
Voltage Output
t
.035 Groove
.025 Groove
.025 Groove
.035 Groove
MEGA FORCE®140i MP®
or an output overload has
occurred if blinking.

B-6
OPERATION
cUrrent or voltaGe baseD on Dial positions
Va ues isted in the tab e are approximate and shou d be used for
reference on y
If a foot peda is used for TIG we ding then the output current can be
adjusted between 10 amps and maximum current determined by the
position of the dia
.035 MiG Wire proceDUres
The optimal welding performance is achieved when using .025 or
.030 Solid MIG wire. If required, the recommended settings for
.035 Solid MIG wire are listed below
.035 FcaW-Gs proceDUres
The machine is capable of CAW-GS Welding with Lincoln
Electric®.035 Outershield®71M Wire
The procedures for 100%CO2and 75%Ar/25%CO2are listed
below
.035 FcaW-Gs proceDUres
The machine is capable of CAW-GS Welding with Lincoln
Electric®.035 Outershield®71M Wire
The procedures for 100%CO2and 75%Ar/25%CO2are listed
below
MEGA FORCE®140i MP®
MATERIAL THICKNESS
WIRE DIA 18 GA 16 GA 14 GA 12 GA 1/8" 3/16"
STEEL MIG 75% AR/25% CO2
SUPER ARC L-56 (DC+) 0.035 C/3 D/4 E/5 /6 H/7 J/8
STEEL MIG 100% CO2
SUPER ARC L-56 (DC+) 0.035 D/4 E/4 /5 H/6 I/6 J/6
MATERIAL THICKNESS
WIRE DIA 12 GA 1/8" 3/16" 1/4" 5/16"
STEEL CAW-GS 75% AR/25% CO2
OUTERSHIELD
®
71M (DC+) 0.035 I/5 J/6.5 J/6.5 J/7 J/7
STEEL CAW-GS 100% CO2
OUTERSHIELD
®
71M (DC+) 0.035 H/5 I/6.5 I/6.5 J/7 J/7
MATERIAL THICKNESS
WIRE DIA 18 GA 16 GA 14 GA 12 GA 1/8" 3/16" 1/4" 5/16"
STEEL SEL -SHIELDED NO GAS REQ
NR-211MP (DC-) 0.035 B/2 B/2 C/2 D/3 /6 G/7 I/8 I/8
Knob Position A B C D E F G H I J
MIG Volts
13 14 15 16 17 18 19 20 20.5 21.5
STICK Output Current
25273040506070808590
TIG Output Current
10 25 40 55 70 80 95 105 115 120

B-7
OPERATION
tiG setUp anD Use
Procedure for TIG welding with a Foot Pedal
TIG welding with a foot pedal requires a Lincoln Electric K1782-16
Ready to Weld TIG Torch, a K4361-1 oot Pedal and a bottle of
100% Argon Shielding Gas. The foot pedal permits the output
current to be adjusted while welding. The foot pedal can be used
to initiate the welding output and the flow of argon shielding gas.
The machine will automatically detect when the foot pedal is
connected and set the machine to TIG mode.
Connect the Items to the machine as shown below
FIGURE B.6
The welding arc current will be determined by the position of the
foot pedal and the position of the V/A dial present on the front of
the machine. In order to achieve maximum output, the V/A dial
must be set to the letter “J” position and the foot pedal must be
fully closed. Lower outputs can be achieved by reducing the V/A
dial or by reducing the pressure on the foot pedal. To start the
welding arc, lightly touch the tungsten to the piece that is to be
welded and then press the foot pedal. Slowly pull or rock the
tungsten off the work piece and the welding arc will initiate. After
the foot pedal is released the shielding gas will continue to flow
for 8 seconds. This post flow period is used to prevent contam-
ination to the tungsten while the tungsten is still warm and to
prevent contamination of the weld puddle.
Procedure for TIG welding without a Foot Pedal
TIG welding without a foot pedal requires a Lincoln Electric
K1782-16 Ready to Weld TIG Torch and a bottle of 100% Argon
Shielding Gas.
Connect the Items to the Machine as shown below
FIGURE B.7
The welding output current will be determined by the position of
the V/A dial present on the front of the machine. To start the
welding arc, lightly touch the tungsten to the piece that is to be
welded and keep the tungsten on the work piece for about 1
second to initiate the Argon shielding gas. Slowly pull or rock the
tungsten off the work piece and the welding arc will initiate. After
welding is complete the shielding gas will continue to flow for 8
seconds. This post flow period is used to prevent contamination to
the tungsten while the tungsten is still warm and to prevent conta-
mination of the weld puddle.
K1782-16 Ready to
Weld TIG Torch
100% Argon
Shielding Gas.
K4361-1 Foot Pedal
K1782-16 Ready to
Weld TIG Torch
100% Argon
Shielding Gas.
MEGA FORCE®140i MP®

C-1
ACCESSORIES
OPTIONAL KITS AND
ACCESSORIES
MEGA FORCE®140i MP®
Type Produ t Number Details
General
K520
INDUSTRIAL WELDING CART - Heavy duty cart stores and transports
welder, 150 cubic foot shielding gas cylinder, welding cables and
accessories. Includes stable platforms for welder and gas bottle platform,
lower tray for added storage capacity and adjustable height handle.
K2275-3
WELDING CART (80 CU T. BOTTLE CAPACITY) - Lightweight cart stores
and transports welder, 80 cubic foot shielding gas cylinder, welding cables
and accessories. Includes an angled top shelf for easy access to controls,
lower tray for added storage capacity, a sturdy fixed handle and
convenient cable wrap hanger.
K2377-1
CANVAS COVER - Protect your machine when not in use. Made from
attractive red canvas that is flame retardant, mildew resistant and water
repellent. Includes a convenient side pocket to hold welding gun.
K530-7 REPLACEMENT MAGNUM®PRO 100L GUN - with 8-pin connector
Spool Gun K4360-1
MAGNUM®PRO 100SG SPOOL GUN - Designed to easily feed small 4"
diameter (1lb. spools of) .030 or .035 aluminum wire. Includes gun, adapter
kit, three extra .035 contact tips, gas nozzle, and spool of Superglaze 4043
.035" diameter welding wire. Packaged in a convenient carry case.
TIG
K1782-16
READY TO WELD PTA-9 TIG TORCH ASSEMBLY: eatures a 12.5 ft cable
and a patent-pending brass connector that attaches to the machine’s wire
drive. Package also includes 1/16” and 3/32” tungsten, collets and collet
bodies as well as a backcap and nozzle.
K4361-1
OOT AMPTROL - eatures a durable steel enclosure and 13 foot cable with
an 8-pin connector. The foot pedal can be used to initiate and stop TIG
welding and for adjusting the output current while welding.

D-1
MAINTENANCE
ROUTINE MAINTENANCE
Before carrying out service, maintenance and/or
repair jobs, fully disconnect power to the machine.
Use Personal Protective Equipment (PPE),
including safety glasses, dust mask and gloves to
avoid injury. This also applies to persons who enter
the work area.
MOVING PARTS can injure.
• Do not operate with doors open or guards off.
• Stop engine before servicing.
• Keep away from moving parts.
Have qualified personnel do all maintenance and
troubleshooting work.
General Maintenance
In extremely dusty locations, dirt may clog the air passages
causing the welder to run hot. Blow dirt out of the welder with
low-pressure air at regular intervals to eliminate excessive dirt
and dust build-up on internal parts.
The fan motor has a sealed bearing, which requires no service
DRIVE ROLLS AND GUIDE PLATES
After every coil of wire, inspect the wire drive mechanism. Clean it
as necessary by blowing with low pressure compressed air. Do
not use solvents for cleaning the idle roll because it may wash the
lubricant out of the bearing. All drive rolls are stamped with the
wire sizes they will feed. If a wire size other than that stamped on
the roll is used, the drive roll must be changed.
GUN TUBES AND NOZZLES
1. Replace worn contact tips as required.
2. Remove spatter from inside of gas nozzle and from tip after
each 10 minutes of arc time or as required.
GUN CABLE CLEANING
To help prevent feeding problems, clean cable liner after using
approximately 30 pounds (13.6 kg) of electrode. Remove the cable
from the wire feeder and lay it out straight on the floor. Remove
the contact tip from the gun. Using an air hose and only partial
pressure, gently blow out the cable liner from the gas diffuser end.
Excessive pressure at the beginning of the cleaning procedure
may cause the dirt to form a plug.
lex the cable over its entire length and again blow out the cable.
Repeat this procedure until no further dirt comes out. If this has been
done and feed problems are experienced, replace the liner.
perioDic Maintenance
LINER REMOVAL, INSTALLATION AND TRIMMING
INSTRUCTIONS FOR MAGNUM PRO 100L
NOTE: The variation in cable lengths prevents interchanging
of liners between guns. Once a liner has been cut for a
particular gun, it should not be installed in another gun
unless it can meet the liner cutoff length requirement.
1. Remove the gas nozzle from the gun by unscrewing counter-
clockwise
2. Remove the contact tip from the gun by unscrewing counter-
clockwise
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 connector that connects to
the wire feeder. See bottom image. 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 appropriately for
the wire size being used.
6. ully 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. Remove any
burrs from the end
of the liner.
8. Screw the gas
diffuser onto the end
of the gun tube and
securely tighten.
9. Replace the contact
tip and nozzle.
WARNING
CAUTION
MEGA FORCE®140i MP®
If for any reason you do not understand the procedures or are unable to perform the maintenance or repairs safely, contact your
Lincoln Authorized Service acility for technical troubleshooting assistance before you proceed.
WWW.LINCOLNELECTRIC.COM/LOCATOR
1-1/4” (31.8mm)
Liner Trim Length
Gas Diffuser
Contact Tip
Gas Nozzle or
Gasless Nozzle
Brass Cable Connector
Set Screw
Liner Assembly
FIGURE D.1

F-1
TROUBLESHOOTING
MEGA FORCE®140i MP®
TROUBLESHOOTING
How to Use Troubleshooting Guide
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 locate and
repair possible machine malfunctions. Simply follow the three-
step procedure listed below.
tep 1. LOCATE PROBLEM ( YMPTOM).
Look under the column labeled “PROBLEM (SYMPTOMS).” This
column describes possible symptoms that the machine may
exhibit. ind the listing that 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.
tep 3. RECOMMENDED COUR E OF ACTION
This column provides a course of action for the Possible Cause,
generally it states to contact you local Lincoln Authorized ield
Service acility.
If you do not understand or are unable to perform the
Recommended Course of Action safely, contact your local
Lincoln Authorized ield Service acility.
E
ELECTRIC SHOCK can kill.
• Turn off machine at the disconnect switch
on the rear of the machine and remove
main power supply connections before
doing any troubleshooting.
WARNING
WARNING