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D-3
MAINTENANCE
D-3
FUEL FILTERS
When working on the fuel system:
• Keep naked lights away, do not smoke !
• Do not spill fuel !
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The AIR VANTAGE® 500 is equipped with a Fuel
Filter located after the lift pump and before fuel injec-
tors.The procedure for changing the filter is as follows.
1. Close the fuel shutoff valve.
2. Clean the area around the fuel filter head. Remove
the filter. Clean the gasket surface of the filter head
and replace the o-ring.
3. Fill the clean filter with clean fuel, and lubricate the
o-ring seal with clean lubricating oil.
4. Install the filter as specified by the filter manufactur-
er.
Mechanical overtightening will distort the threads,
filter element seal or filter can.
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COOLING SYSTEM
The AIR VANTAGE® 500 is equipped with a pressure
radiator. Keep the radiator cap tight to prevent loss of
coolant. Clean and flush the coolant system periodical-
ly to prevent clogging the passage and over-heating
the engine. When antifreeze is needed, always use the
permanent type.
BATTERY HANDLING
GASES FROM BATTERY can explode.
• Keep sparks, flame and cigarettes
away from battery.
To prevent EXPLOSION when:
• INSTALLING A NEW BATTERY - dis-
connect negative cable from old bat-
tery first and connect to new battery
last.
• CONNECTING A BATTERY CHARGER
- Remove battery from welder by dis-
connecting negative cable first, then
positive cable and battery clamp.
When reinstalling, connect negative
cable last. Keep well ventilated.
• USING A BOOSTER - connect positive
lead to battery first then connect nega-
tive lead to engine foot.
BATTERY ACID CAN BURN EYES AND
SKIN.
• Wear gloves and eye protection and
be careful when working near battery.
Follow instructions printed on battery.
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PREVENTING ELECTRICAL DAMAGE
1. When replacing, jumping, or otherwise connecting
the battery to the battery cables, the proper polarity
must be observed. Failure to observe the proper
polarity could result in damage to the charging cir-
cuit. The positive (+) battery cable has a red termi-
nal cover.
2. If the battery requires charging from an external
charger, disconnect the negative battery cable first
and then the positive battery cable before attaching
the charger leads. Failure to do so can result in
damage to the internal charger components. When
reconnecting the cables, connect the positive cable
first and the negative cable last.
PREVENTING BATTERY DISCHARGE
Turn the RUN/STOP switch to stop when engine is
not running.
PREVENTING BATTERY BUCKLING
Tighten nuts on battery clamp until snug.
AIR VANTAGE® 500 CUMMINS
WARNING
WARNING