Lincoln Electric POWER-MIG 140C User manual

Power MIG® . The Professional’s ChoiceSM .
ome projects and repair, sheet metal autobody work, farm
and small shop welding—the Power MIG®140C designed for
120 volt household power does it all!
Use the continuous voltage control to precisely dial in the
settings some thin sheet metal and aluminum
applications require for optimal results.
Diamond Core Technology™and the rugged drive system
aid arc performance for MIG welding on thin gauge steel,
stainless and aluminum. Or, use gas-less flux-cored
welding for deep penetration on thicker steel, even
outdoors! Compare performance, features and price and
you’ll agree. . . Power MIG®. The Professional’s ChoiceSM!
Processes
MIG, Flux-Cored
WIRE FEEDER/WELDERS
CV
DC
1
60
Hz
Pu lication E7.23 4/08
www.lincolnelectric.com
Advantage Lincoln
Power MIG®140C
Output
Input
Dimensions
Product Product ated Output Input Current @ H x W x D Net Weight
Name Number Input Power Current/Voltage/Duty Cycle ated Output Output ange inches (mm) lbs.(kg)
Power MIG®140C K2471-1 120/1/60 90A/19.5V/20% 20A 30-140 Amps DC 14 x 10.15 x 18.6 58
50-500 ipm WFS (357 x 258 x 472) (26.3)
(1.3-12.7 m/min)
Max. OCV: 33
TECHNICAL SPECIFICATIONS
Superior Arc Performance:
•Exclusive Diamond Core Technology™ delivers an outstanding arc
you notice immediately compared to competitive models:
– Great arc starts make getting started easy.
– Wide voltage ‘sweet spot’ gives you a very forgiving arc, so setting
controls is a snap.
– Extremely low spatter reduces clean-up.
– Outstanding aluminum & stainless performance, not just mild
steel.
•Wide 30-140 amp welding output range is the highest output in
120 volt input power welder class.
•MIG weld 24 gauge up to 10 gauge (.135”) sheet metal in a single
pass. Weld up to 5/16" steel using self-shielded Lincoln Innershield
wires (FCAW-S).
Professional Features:
•Industrial Cast Aluminum Drive features:
– Dual gear-driven drive rolls for positive traction.
– Patented split wire guides for optimal wire alignment.
– Brass-to-Brass gun connections for enhanced connectivity.
– Large industrial closed-design drive motor for improved torque
and trouble-free performance.
•Spool Gun eady – add the optional Magnum®100SG spool gun for
reliable operation at the high wire feed speeds aluminum welding
demands. No expensive outboard modules required.
•No Hassle Tool-less Design – for wire spool mounting, wire drive
service and polarity changes.
•Get More, Do More – Start out with more contact tips, nozzles, drive
rolls and wire electrode for MIG or flux-cored welding.
•Innovative contact tip, drive roll and nozzle storage keeps all your
consumables close at hand.
•Electrically ‘cold’ electrode provides an added measure of operator
safety.
Superb Quality:
•Patent-pending Power Chassis™ channels airflow to cool power
systems, structurally secures key components and traps wires and
cables to avoid unnecessary abrasion.
•Toughest PC Board Protection in the industry – ‘Potted’ to seal sen-
sitive components from the environment, ‘trayed’ in a tough plastic
tray to add rigidity and shock resistance.
• Three-year Lincoln warranty. Two-year extended warranty available –
(U.S. and Canada only).
Shown:
K2471-1 Power MIG®140C

Power MIG®140C
www.lincolnelectric.com
[2]
A CLOSER LOOK
SUPERIOR ARC PERFORMANCE
Diamond Core Technology™delivers
a superior arc across the entire
welding range.
PROFESSIONAL WIRE DRIVE
Enhanced uality
1. Brass Gun Connection Enhances Connectivity
2. Rigid Cast Aluminum Drive
Aids Wire Alignment
3. Patented Split Wire Guide
Reduces Tangles
4. Dual Gear-Driven Drive Rolls Deliver
Positive Traction
Easy to Use
5. Easy Turn Tension Adjustment
6. Tool-less Quick Lock Drive
Roll Changeovers
1
26
4
5
3
PRECISION ALUMINUM WELDING
Magnum®100SG Spool Gun
ur low-priced spool gun is your most reliable aluminum
feeding solution.
Home Projects
Repair Work
Great For Projects
or Repair
Thin Sheet Metal Auto ody Work
Complete Kit. No Bulky Module Required.
Order K2532-1

Power MIG®140C
www.lincolnelectric.com
[3]
A CLOSER LOOK
SP = Single Pass.
MP = Multiple Pass.
WHAT’S INCLUDED
Power MIG®140C (K2471-1) Includes:
Gun
• Magnum®100L gun and 10 ft. (3.0 m) cable assembly with brass
gun connection and 4-pin MS-Type connection for trigger control
(K530-6)
• .025" (0.6 mm) Contact Tips (Qty. 3) (KP11-23)
• .035" (0.9 mm) Contact Tips (Qty. 3) (KP11-35)
• Gasless Nozzle for Innershield®welding (KP1939-1)
• Gas Nozzle for MIG welding (KP21T-37)
Drive
• Spindle Adapter for 8" (203 mm) Diameter Spools (M15445-R)
• .025"-.035" (0.6-0.9 mm) Wire Diameter Wire Guide (KP2531-1)
• .025" (0.6 mm) Wire Diameter Drive Roll for MIG welding
(KP2529-1)
• .025"-.030" (0.6-0.7 mm) Wire Diameter Drive Roll for MIG welding
(KP2529-2)
• .030"-.045" (0.7-1.1 mm) Wire Diameter Knurled Drive Roll for
Flux-Cored welding (KP2529-3)
Shielding Gas Apparatus
• Gas Regulator and 52 in. (1.3 m) Hose for use with C 2or argon
blend gases. (For use with C 2shielding gas, order a Lincoln®
S19298 C 2shielding gas bottle adapter.)
Welding Wire
• 2 lb. (0.90 kg) Spool of .025" (0.6 mm) diameter SuperArc®L-56®
premium MIG wire (ED030583)
• 1 lb. (0.45 kg) Spool of .035" (0.9 mm) diameter Innershield®
NR®-211-MP flux-cored wire (ED027641)
Other
• Work Clamp and 10 ft. (3.0 m) Cable
• Instruction Manual (IM-890)
• How to Use DVD (S26375)
• Learn to Weld Manual (LTW1)
INNERSHIELD® NR®-211 MP
INNERSHIELD® NR®-211 MP
SUPERARC® L-56
SUPERARC® L-56
SUPERGLAZE® 4043
SP
SP
SP
SP
SP
MP
MP
PERFORMANCE PLUS
Power MIG®140C Welding Capabilities
Product Wire Diameter Type/
Number in (mm) Process
Drive olls
KP2529-1 .025-.030 (0.6-0.7) Smooth/MIG
KP2529-2 .035 (0.9) Smooth/MIG
KP2529-3 .030-.035 (0.8-1.1) Knurled/Flux-Cored
Inner Wire Guides
KP2531-1 .025-.035 (0.6-0.9) All
KP2531-2 .045 (1.1) All
DRIVE ROLLS AND WIRE GUIDES
•Protect your welder for up to 5 full years!
•No out-of-pocket costs for the life of the Extended
Warranty –– parts and labor are fully covered.
•Nation-wide coverage for all repairs.
•Backed by The Lincoln Electric Company ––
Not a third party.
•Price is less than the cost of a typical single repair.

PRODUCT DESCRIPTION ORDER NUMBER UANTITY PRICE
POWER MIG®140C – 120/1/60 K2471-1
Recommended General Options
2-Year Extended Warranty - Power MIG®140C X2471
Welding Cart K2275-1
Utility Cart K520
Small Canvas Cover K2377-1
Fume Extraction System See Bulletin E13.40
Recommended Wire Feeder Options
Magnum®100SG Spool Gun K2532-1
Spot Timer Kit K2525-1
TOTAL:
THE LINCOLN ELECTRIC COMPANY®
22801 St. Clair Ave., Cleveland, H 44117-1199 • 216.481.8100 • www.lincolnelectric.com
POWER MIG®140C ORDER FORM
RECOMMENDED OPTIONS
GENERAL OPTIONS
Welding Cart
Full-featured cart is designed to
store and transport a welder, 80
cubic foot gas cylinder, welding
cables and accessories. Includes
an angled top shelf for easy
access to welder controls, a lower
tray for added storage space, a
sturdy handle and a convenient
cable wrap hanger.
Order K2275-1
Utility Cart
Heavy duty cart stores and trans-
ports 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.
Order K520
Small Canvas Cover
Protect your welder when not in
use. Made from attractive red
canvas that is flame retardant,
mildew resistant and water repel-
lent. Includes a convenient side
pocket to hold your welding torch
or gun.
Order K2377-1
WIRE FEEDER OPTIONS
Magnum®100SG Spool Gun
Designed to easily feed 4" (102
mm) diameter 1 lb. (0.45 kg)
spools of .030" (0.8 mm) or .035"
(0.9 mm) diameter SuperGlaze®
aluminum MIG wire. Includes gun,
adapter kit, .035" (0.9 mm) con-
tact tips (qty. 3), gas nozzle, and a
1 lb. (0.45 kg) spool of
SuperGlaze®4043 .035" (0.9 mm)
MIG wire. Packaged in a conven-
ient carrying case.
Order K2532-1
Spot Timer Kit
This timer allows you to set a
fixed weld time of up to 10 sec-
onds that is initiated when you
pull the gun trigger. Ideal for
making consistent spot welds on
thin sheet metal.
Order K2525-1
Welding Fume Extractors
Lincoln offers a wide variety
of welding fume extraction
environmental system solutions,
ranging from portable systems
easily wheeled around the shop
to shop-wide central systems
servicing many dedicated welding
stations.
Request Publication E13.40
C U S T O M E R A S S I S T A N C E P O L I C Y
The business of The Lincoln Electric Company®is manufacturing and selling high quality welding equipment, consumables, and cutting equipment. ur challenge is to meet the needs of our customers and to exceed
their expectations. n occasion, purchasers may ask Lincoln Electric®for advice or information about their use of our products. We respond to our customers based on the best information in our possession at that time.
Lincoln Electric®is not in a position to warrant or guarantee such advice, and assumes no liability, with respect to such information or advice. We expressly disclaim any warranty of any kind, including any warranty of
fitness for any customer’s particular purpose, with respect to such information or advice. As a matter of practical consideration, we also cannot assume any responsibility for updating or correcting any such information
or advice once it has been given, nor does the provision of information or advice create, expand or alter any warranty with respect to the sale of our products.
Lincoln Electric®is a responsible manufacturer, but the selection and use of specific products sold by Lincoln Electric®is solely within the control of, and remains the sole responsibility of the customer. Many variables
beyond the control of Lincoln Electric®affect the results obtained in applying these types of fabrication methods and service requirements.
Subject to Change – This information is accurate to the best of our knowledge at the time of printing. Please refer to www.lincolnelectric.com for any updated information.