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D-3
FUEL FILTERS
WARNING
When working on the fuel system
• Keep naked lights away, do not
smoke !
• Do not spill fuel !
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The BIG RED™ 500 is equipped with a Fuel
Filter/Water Separator Assembly located after the
lift pump and before the fuel injectors. The Fuel
Filter/Water Separator is mounted to the engine block
just left of the lift pump.
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.
WARNING
Mechanical overtightening will distort the threads,
filter element seal or filter can.
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MAINTENANCE
BATTERY HANDLING
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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 off the RUN/STOP to stop when engine is not running.
BIG RED™ 500
GASES FROM BATTERY can explode.
• Keep sparks, flame and cigarettes away
from battery.
To prevent EXPLOSION when:
• INSTALLING A NEW BATTERY - discon-
nect negative cable from old battery first
and connect to new battery last.
• CONNECTING A BATTERY CHARGER -
Remove battery from welder by discon-
necting negative cable first, then posi-
tive cable and battery clamp. When rein-
stalling, 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.
D-3
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