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OPERATING INSTRUCTIONS
Read and understand this entire section before operat-
ing your Commander 300.
SAFETY INSTRUCTIONS
WARNING
Do not attempt to use this equipment until you have
thoroughly read all operating and maintenance man-
uals supplied with your machine. They include impor-
tant safety precautions, detailed engine starting,
operating and maintenance instructions and parts
lists.
ELECTRIC SHOCK can kill.
•Do not touch electrically live parts such
as output terminals or internal wiring.
•Insulate yourself from the work and
ground.
•Always wear dry insulating gloves.
------------------------------------------------------------------------
ENGINE EXHAUST can kill.
•Use in open, well ventilated areas or
vent exhaust outside
•Do not stack anything near the engine.
------------------------------------------------------------------------
MOVING PARTS can injure.
•Do not operate with doors open or
guards off.
•Stop engine before servicing.
•Keep away from moving parts
------------------------------------------------------------------------
Only qualified personnel should operate this equip-
ment.
ADDITIONAL SAFETY PRECAUTIONS
Always operate the welder with the hinged door closed
and the side panels in place as these provide maxi-
mum protection from moving parts and insure proper
cooling air flow.
OPERATION
GENERAL DESCRIPTION
The Commander 300 is a diesel engine-driven welding
power source. The machine uses a brush type alter-
nating current generator for DC multi-purpose welding
and for 120/240 VAC auxiliary standby power. The
welding control system uses state of the art Chopper
Technology.
The generator has a single sealed bearing for mainte-
nance free service. The rotor is a copper wound design
with two slip rings and brushes. The stator is wound
entirely with heavy gauge copper wire and insulated
with NEMA class F insulation material. The stator is
then impregnated with three layers of high quality var-
nish. After the stator is assembled using tie bars, the
entire assembly covered with an environmentally pro-
tective coating. These measures insure trouble-free
operation in the harshest environments.
The fuel tank is made from high density polyethylene
and holds 25 gallons of diesel fuel. This will provide
enough fuel to run for 18 hours at full load.
The Deutz F3L-1011F engine is equipped with a stan-
dard, heavy duty, combination fuel filter/water separa-
tor element.
RECOMMENDED APPLICATIONS
WELDER
The Commander 300 provides excellent constant current DC
welding output for stick (SMAW) welding. The Commander
300 also provides excellent constant voltage DC welding out-
put for MIG (GMAW) and Innershield (FCAW) welding.
GENERATOR
The Commander 300 provides smooth 120/240 VAC
output for auxiliary power and emergency standby
power.
DESIGN FEATURES AND ADVANTAGES
K1585-2 Commander 300 Deluxe Model Features
For Welding:
• Excellent DC multi-purpose welding for stick, MIG, TIG,
cored wire and arc gouging applications.
• 30 to 300 amps output in five slope controlled ranges
for out-of position and pipe electrodes, one constant
current output range for general purpose welding, and
one constant voltage range for MIG wire and cored
wire welding.
COMMANDER 300
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