TP-5594 5/95 Scheduled Maintenance 3-7
Fuel Filter
(Plastic In-Line Type
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
generatormay bedifficultto start ormayrunrough. 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, check and/or replace
fuelfilterevery3monthsor100hours of operation. The
fuel filter cannot becleaned and must bereplaced iffuel
starvation or poor engine performance is evident.
Bleeding the Fuel System
If the generator set engine runs out of fuel, air leaks
developinthesuctionsideof the fuel system, or thefuel
filter is replaced, it will be necessary to bleed the entire
system to prevent starting failures and/or erratic
operation. See Figure 3-7 and refer to the following
procedure.
1. Fill the fuel tank.
2. Loosen the small vent screw a few turns on fuel
filter.
3. Usingstartswitchonthecontroller,operatethefuel
pump until fuel, free from air bubbles, flows from
this point. Tighten vent screw.
4. Loosen the line connection (bleed point) at fuel
injection pump inlet.
5. Usingstartswitchonthecontroller,operatethefuel
pump until fuel, free from air bubbles, flows from
this point. Tighten line connection.
Explosive fuel vapors.
Can cause severe injury or death.
Useextreme carewhenhandling,storing,
and using fuels.
WARNING
Explosive fuel vapors can cause severe injury or
death. Spilled fuel can cause an explosion. Use a
container to catch fuel whendraining fuelsystem. Wipe
up all spilled fuel after draining system.
1-932
1
2
3
4
5
1. Fuel Injection Pump
2. Line Connection (Bleed Point)
3. Fuel Filter
4. Electric Fuel Pump
5. Vent Screw
Figure 3-7. Bleeding Fuel System
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