TP-6053 7/0414 Section 4 Fuel System
Fuel Filter Element Replacement Procedure
1. Place the generator set start/stop switch in the
STOP position.
2. Disconnect the generator set engine starting
battery, negative (--) lead first.
3. Close the fuel supply valve.
4. Remove the retaining ring, filter cup, o-ring, fuel
filter element and spring.
5. Replace the fuel filter element and install as shown
in Figure 4-3.
6. Open the fuel supply valve.
7. Reconnect the generator set engine starting
battery, negative (--) lead last.
8. Bleed the fuel system. See Section 4.4.
1
TP-561633
1. Fuel strainer assembly
2. Body
3. Fuel element
4. Spring
5. O-ring
6. Filter cup
7. Retaining ring
2
3
4
5
6
7
Figure 4-3 Fuel Oil Filter Element
4.4 Bleed the Fuel System
Bleed the air from the fuel system to prevent starting
failures and/or erratic operation. One or more of the
following causes air to collect in the fuel system:
1. The generator set operates until the fuel supply is
emptied.
2. The air leaks in the suction side of the fuel system.
3. Replacing the fuel filter.
4. Vapor lock.
Note: Connect the battery during the priming procedure
to allow engine cranking. Do not allow the
engine/generator to start. To prevent starting,
toggle the start/stop switch by momentarily
placing the start/stop switch in the START
position for a few seconds and then placing the
switch in the STOP position. Close the seacock
during bleeding.
Fuel System Bleeding Procedure
1. Loosen the fuel filter screw at position 1. See
Figure 4-4.
2. Toggle the start/stop switch until fuel, free of air
bubbles, flows from the vent screw at position 1.
Tighten the screw.
3. Loosen the fuel filter screw at position 2.
4. Toggle the start/stop switch until fuel, free of air
bubbles, flows from the vent screw at position 2.
Tighten the screw.
5. Loosen the fuel injection pump screw at position 5.
6. Toggle the start/stop switch until fuel, free of air
bubbles, flows from the vent screw at position 5.
Tighten the screw.
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