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The AIR VANTAGE® 500 KUBOTA is a diesel engine-
driven welding power source. The machine uses a
brush type alternating current generator for DC multi-
purpose welding, for 120/240 VAC single phase and
240V three phase auxiliary standby power. The AIR
VANTAGE® 500 KUBOTA also has a rotary screw 60
cfm air compressor built in. The DC welding control sys-
tem uses state of the art Chopper Technology for
superior welding performance.
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Start the engine and set the IDLER control switch to the
desired operating mode. Full power is available regard-
less of the welding control settings providing no welding
current is being drawn.
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• Remove the fuel tank cap.
• Fill the tank. 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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The engine will use a small amount of oil during its
“break-in” period. The break-in period is about 50 run-
ning hours.Check the oil every four hours during
break-in.
Change the oil after the first 50 hours of operation and
every 200 hours thereafter. Change the oil filter at
each oil change.
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Before Starting the Engine:
• Be sure the machine is on a level surface.
• Open side engine door and remove the engine oil
dipstick and wipe it with a clean cloth. Reinsert the
dipstick and check the level on the dipstick.
• 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.