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IMPORTANT: Replace fuel filter elements anytime audible alarm
sounds and diagnostic trouble codes indicate plugged fuel filters
(low fuel pressure). If no alarm sounds during the 12 month service
interval, replace elements at that time, or after 250 hours operation,
whichever comes first.
Thoroughly clean exterior of fuel filter/water separator assembly
and surrounding area.
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Drain water and contaminants from primary filter into suitable
container by opening drain valve (A) on bottom of separator.
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Disconnect the water-in-fuel (WIF) sensor connector (B) from
primary filter.
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Remove primary filter (C) and secondary filter (D) and discard.
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IMPORTANT: Do NOT prefill either fuel filter with fuel.
Lubricate gasket for primary fuel filter with fuel, and install
canister onto base. Tighten 3/4 turn after packing contacts base.
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Lubricate primary fuel filter water separator gasket with fuel
and install onto filter canister. Tighten 3/4 of a full turn after
gasket contacts the base.
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Lubricate gasket for secondary fuel filter with fuel, and install
filter onto base. Tighten 3/4 turn after packing contacts base.
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Connect water separator sensor harness.
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IMPORTANT: Key must be turned to ON position for 3 minutes before
starting engine to provide time to prefill fuel filters. Fuel system
is self-bleeding.
Do not try to crank engine until after
3 minute time elapses or an air lock in the fuel system may occur.
Turn key switch to ON position for 3 minutes to allow transfer
pump to prefill fuel filters.
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Turn key switch clockwise to START position, and run engine
at fast idle for 2 minutes.