TP-5936 7/0410 Section 4 Fuel System
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.
D The generator set operates until the fuel supply is
emptied.
D Air is drawn into the suction side of the fuel system.
D Replacing the fuel filter.
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 s tart/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.
Procedure to Bleed the Fuel System
1. Loosen vent screw A at the fuel filter. See
Figure 4-2.
2. Toggle the start/stop switch until fuel, free of air
bubbles, flows from vent screw A. Tighten vent
screw A.
3. Loosen vent screw B at the fuel filter. See
Figure 4-2.
4. Toggle the start/stop switch until fuel, free of air
bubbles, flows from vent screw B. Tighten vent
screw B.
5. Loosen vent screw C at the fuel filter. See
Figure 4-2.
6. Toggle the start/stop switch until fuel, free of air
bubbles, flows from vent screw C. Tighten vent
screw C.
GB-250000A-K
1234 5
1. Vent screw A
2. Vent screw B
3. Fuel filter
4. Vent screw C
5. Fuel injection pump
Figure 4-2 Fuel System, Typical
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