Scheduled Maintenance 3-7TP-5648 8/93
Fuel Filter
The fuel filterserves toremove water anddirt contained
in the fuel. The engine-mounted fuel filter element is
paper and no attempt should be made to clean it. Its
useful life will be determined largely by the quality and
condition of the fuel used. Under normal conditions, the
fuelfilter elementshouldbereplacedevery400 hoursor
six months. See Figure 3-6 for location and use the
following procedure to service the fuel filter.
1. Loosen the fuel filter by using a filter wrench and
turning in a counterclockwise direction. Use rags
to clean up spilled fuel oil. Remove and discard
filter.
2. Clean contact surface on the fuel filter adapter.
3. Lightly lubricatethegasket surfaceofthe newfuel
filter with fresh fuel oil. Thread the fuel filter to the
adapter until the gasket makes contact,
hand-tighten an additional one-half turn.
4. See “Bleeding” section following.
1-932
1
1. Fuel Filter
Figure 3-6. Fuel Filter Location.
Fuel Filter (Supplied Loose)
The fuel filter, supplied loose with the unit, serves as a
preliminary source to remove dirt and metal particles
from the fuel system before they reach the electric fuel
pump. If the fuel filter is clogged with debris, the
generator may be difficultto start or may run rough. The
service life of the fuel filter is solely dependent on the
quality of the diesel fuel used and the amount of debris
entering the fuel system when refueling. As part of a
regular maintenance program, the fuel filter should be
checkedand/orreplacedevery3monthsor100hoursof
operation. The fuel filter cannot be cleaned and should
be replaced if fuel starvation or poor engine
performance is evident.
WARNING
Explosive fuel vapors.
Can cause severe injury or death.
Useextremecarewhenhandling,storing,
and using fuels.
Explosive fuel vapors can cause severe injury or
death. Spilled fuel can cause an explosion. Use a
container to catch fuel when draining fuel system. Wipe
up all spilled fuel after draining system.
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