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The RANGER® 305D is a diesel engine powered DC
multi-process welding power source and 120 / 240
volt AC power generator. The engine drives a genera-
tor that supplies three phase power for the DC weld-
ing circuit and single phase power for the AC auxiliary
outlets. The DC welding control system uses state of
the art Chopper Technology (CT tm) for superior weld-
ing performance.
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Start the engine and set the IDLER control switch to
the desired operating mode. Full power is available
regardless of the welding control settings providing no
welding current is being drawn.
The auxiliary power of the RANGER® 305D consists
of two 20 Amp-120 VAC (5-20R) duplex receptacles
with GFCI protection and one 50 Amp 120/240 VAC
(14-50R) receptacle. The 240 VAC receptacle can be
split for single phase 120 VAC operation. Also refer to
the AUXILIARY POWER OPERATION section later in
this chapter.
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Before Starting the Engine:
• Be sure the machine is on a level surface.
• Open top & side engine doors and remove the
engine oil dipstick and wipe it with a clean cloth.
Reinsert the dipstick and check the level on the dip-
stick.
• Add oil (if necessary) to bring the level up to the full
mark. Do not overfill. Close engine door.
• Check radiator for proper coolant level. (Fill if nec-
essary).
• See Engine Owner’s Manual for specific oil and
coolant recommendations.
*!
• Stop engine while fueling.
• Do not smoke when fueling.
• Keep sparks and flame away from
tank.
• Do not leave unattended while fuel-
ing.
• Wipe up spilled fuel and allow
fumes to clear before starting
engine.
• Do not overfill tank, fuel expan-
sion may cause overflow.
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• Remove the fuel tank cap.
• Fill the tank approximately 4 inches (100mm) from
the top of the filler neck to allow for fuel expansion .
DO NOT FILL THE TANK TO THE POINT OF
OVERFLOW.
• Replace the fuel cap and tighten securely.
• See Engine Owner’s Manual for specific fuel recom-
mendations.
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Any engine will use a small amount of oil during its
“break-in” period. For the diesel engine on the
RANGER® 305D, break-in is about 50 running hours.
Check the oil every four hours during break-in.
Change the oil after the first 50 hours of
operation,every 100 hours thereafter. Change the oil
filter at the second oil change.
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