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SAFETY PRECAUTIONS
WARNING
Do not attempt to use this equipment until you have thoroughly read the engine manufacturer’s manual supplied with your welder. It includes important safety precautions, detailed engine starting, operat- ing and maintenance instructions, and parts lists.
ELECTRIC SHOCK can kill.
•Do not touch electrically live parts or electrode with skin or wet clothing.
•Insulate yourself from 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
•Always operate the welder with the hinged door closed and the side panels in place.
•Read carefully the Safety Precautions page before operating this machine. Always follow these and any other safety procedures included in this man- ual and in the Engine Instruction Manual.
GENERAL DESCRIPTION
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.
FOR AUXILIARY POWER:
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.
ENGINE OPERATION
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.
WARNING
ADD FUEL
•Stop engine while fueling.
•Do not smoke when fueling.
•Keep sparks and flame away from tank.
•Do not leave unattended while fueling.
DIESEL FUEL • Wipe up spilled fuel and allow can cause fire. fumes to clear before starting
engine.
• Do not overfill tank, fuel expan-
sion may cause overflow.
Diesel Fuel
•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.
bREAK-IN PERIOD
The engine will use a small amount of oil during its
Change the oil after the first 50 hours of operation and every 200 hours thereafter. Change the oil filter at each oil change.
During
CAUTION
loads. Avoid long periods running at idle. before stopping the engine, remove all loads and allow the engine to cool several minutes.
AIR VANTAGE® 500 KUbOTA
