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. Factory 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/CO
2
shielding gas or 100% CO
2
shielding
gas (note this requires a CO
2
regulator 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 Figure 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. For
cords over 100 foot, larger copper conductors should be
used. Fuse 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 mm
2
) or larger. The
recommended maximum lengths are 25 ft (7.5 m) if #14 AWG
(2.1 mm
2
) is used and 50 ft (15 m) if #12 AWG (3.3 mm
2
) 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
Place Lug
Between
Nuts
Do not remove
bottom nut
WARNING
WARNING
MEGA FORCE
®
140i MP
®
