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B-6
OPERATION
B-6
17. 120VAC RECEPTACLES
These two 120VAC (5-15R) receptacles with GFCI pro-
tection provide 120VAC for auxiliary power. These
receptacles have a 20 amp total rating. Refer to the
AUXILIARY POWER RECEPTACLES section in the
installation chapter for further information about these
receptacles. Also refer to the AUXILIARY POWER
OPERATION section later in this chapter.
18. 15 AMP CIRCUIT BREAKERS
These circuit breakers provide separate overload cur-
rent protection for each 120V receptacle.
19. GROUND STUD
Provides a connection point for connecting the
machine case to earth ground for the safest grounding
procedure. Refer to “MACHINE GROUNDING” in the
Installation chapter for proper machine grounding infor-
mation.
WIRE FEEDER MODE CONTROLS
(Items 20 - 24 Stick & Wire model only)
20. WELD OUTPUT TERMINAL - WIRE
This 1/2-13 stud with flange nut provides a welding
connection point for the electrode and work cables. For
positive polarity welding the electrode cable connects
to the “+” terminal and the work cable connects to this
“-” terminal. For negative polarity welding the work
cable connects to the “+” terminal and the electrode
cable connects to this “-” terminal.
21. 15 AMP CIRCUIT BREAKER
This circuit breaker provides overload protection for the
14-pin connector.
22. VOLTMETER +/- SWITCH
Changes the polarity display on the wire feeder.
23. VOLTS-AMPS SWITCH
Switches the display between volts and amps.
24. 14 - PIN CONNECTOR
For quick connection of wire feeder control cable.
ENGINE OPERATION
STARTING THE ENGINE
1. Open the engine compartment door and check that
the fuel shutoff valve located to the left of the fuel fil-
ter housing is in the open position (lever to be in line
with the hose).
2. Check for proper oil level on the oil dipstick. Close
engine compartment door.
3. Remove all plugs connected to the AC power receptacles.
4. Set IDLER switch to “AUTO”.
5. Set the RUN/STOP switch to “RUN”. Observe that all
engine protection lights momentarily turn on, some lights
may turn off before starting. Check the fuel gauge to
make sure that there is an adequate fuel level.
6. Press and hold the engine START button for a minimum
of 2 seconds.
7. Release the engine START button when the engine starts.
8.
Check that the indicator lights are off. If the LOW FUEL light is
on , the engine will shutdown 30 minutes after starting. If any
other indicator light is on after starting, the engine will shut-
down in a few seconds. Investigate any indicated problem.
9. Allow the engine to warm up at low idle speed for several
minutes before applying a load and/or switching to high
idle. Allow a longer warm up time in cold weather.
COLD WEATHER STARTING / RUNNING
With a fully charged battery and the proper weight oil,
the engine should start satisfactorily even down to
about 0°F. If the engine must be frequently started
below 10
o
F, it may be desirable to install the optional
ether starter kit (K825-1). Installation and operating
instructions are included in the kit. Use ether starting
only when required because excessive use shortens
engine life. If the engine must be operated in extreme
cold environments 0°F to -35°F (-18°C to -37°C) an
optional Cold Weather Kit (K1665-1) is available.
Installation and operating instructions are included in
the kit.
STOPPING THE ENGINE
1. Switch the RUN/STOP switch to “STOP”. This turns
off the voltage supplied to the shutdown solenoid. A
backup shutdown can be accomplished by shutting
off the fuel valve located on the fuel filter housing.
BREAK-IN PERIOD
The engine used to supply power for your welder is a
heavy duty, industrial engine. It is designed and built
for rugged use. It is very normal for any engine to use
small quantities of oil until the break-in is accom-
plished. Check the oil level twice a day during the
break-in period (about 200 running hours).
IMPOR
TANT
IN ORDER TO ACCOMPLISH THIS BREAK-IN, THE
UNIT SHOULD BE SUBJECTED TO HEAVY LOADS,
WITHIN THE RATING OF THE MACHINE. AVOID
LONG IDLE RUNNING PERIODS.
COMMANDER 400