Installation & Electrical Requirements - Snap-On MUSCLE MIG SYSTEM MM350XL Owner's Manual

INSTALLATION
POSITIONING THE UNIT
Locate the unit adjacent to the
welding area and position it so
there is adequate clearance all
around for ventilation and mainte-
nance.
WARNING
• Smoke, fumes and gases are created by
the welding process.
Use only in well ventilated area.
Avoid breathing smoke, fumes and
gases.
Smoke, fumes and gases can cause injury.
ELECTRICAL SUPPLY
WARNING
• Electrical shock can result from absence
of grounding prong.
Do not remove or bypass the grounding
prong in any electrical plug.
Electrical shock can cause injury.
Ensure that there is a 208 or 230
volt, single phase, 60 amp electrical
supply within easy reach of the
unit. The input cable supplied is 20
feet long.Attach a suitable plug
making sure the green wire is attached to
the ground terminal of the wall plug. All
wiring should be performed by a
qualified electrician.
230V INPUT SELECTION
1. Factory selected no change is
needed.
208V INPUT SELECTION
1. Remove the left side panel.
CONTACTOR SWITCH
FRONT OF
MACHINE
FIG. 5. INPUT VOLTAGE SELECTIONS
2. Locate the contactor switch,
which is mounted on top of the
main power transformer(See Fig-
ure 5).
MAKE SURE POWER SOURCE IS
UNPLUGGED BEFORE MAKING IN-
PUT SELECTION CHANGE-OVER.
3. Attached to the power source's
contactor are two (2) two posi-
tion plugs which allows easy
selection of input voltages of
either 208 or 230 volts.
4. Remove both plugs labeled 230V
and connect the two (2) plugs
labeled 208V.
5. Reattach the left side panel of
the machine. Voltage input se-
lection is now complete.
(continued on following page)
7
CONNECT "208"
WIRE FOR
OPERATION ON
208 VOLT INPUT
CONNECT
"230" WIRE FOR
OPERATION ON
230 VOLT INPUT.
CAUTION