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POWER MIG 211i
®
CONNECTION DIAGRAM(S), SYSTEM
GUN AND CABLE INSTALLATION
The Magnum® PRO 1 L gun and cable provided with the Power
MIG® 21 is factory installed with a liner
for .025-.035" (0.9-1.2 mm) 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.
Turn the welder power switch "off" before installing gun
and cable.
1. Lay the cable straight.
2. Unscrew the bolt which is threaded into the brass
connecting block (inside wire feed compartment).
3. Insert the male end of gun into the female casting through
opening in front panel. Ensure the connector is fully
inserted, and then tighten the knurled 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 Gas Metal Arc Welding Processes)
Customer must provide cylinder of appropriate type shielding gas for
the process being used.
A gas ow regulator, for Argon blend gas, and an inlet gas hose are
factory provided with the Power MIG® 21 . When using 100% CO2 an
additional adapter will be required to connect the regulator to the gas
bottle.
CYLINDER may explode if damaged.
Gas under pressure is explosive. Always
keep gas cylinders in an upright position and
always keep chained to undercarriage or
stationary support. See American National
Standard Z-49.1. "Safety in Welding and
Cutting" published by the American Welding
Society.
Install shielding gas supply as follows:
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.
WARNING
WARNING
WARNING
DO NOT ATTACH THE REGULATOR IF OIL, GREASE OR DAMAGE IS
PRESENT! Inform your gas supplier of this condition. Oil or grease in
the presence of high pressure oxygen is explosive.
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.
The user should distance his or her body from the valve outlet
when "cracking" the valve.
nut(s) securely with a wrench.
NOTE: If connecting to 100% CO2 cylinder, 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 CO2 cylinder.
Attach one end of the inlet gas hose to the outlet tting of the ow
regulator, the other end to the Power MIG® 21 rear tting, and
tighten the union nuts with a wrench. Maximum gas pressure
leaving the regulator and entering the machine to not exceed 5 bar
(0.5MPa) or 72 psi.
Before opening the cylinder valve, turn the regulator adjusting knob
counterclockwise until the adjusting spring pressure is released.
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.
when opening the cylinder valve. Always stand to one side.
rate recommended for the procedure and process being used.
15
INSTALLATION
WARNING
WARNING
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