UniCarriers FG20 Series Operation & Maintenance Manual page 114

AIR BLEEDING FUEL SYSTEM
Diesel-powered trucks
CAUTION
Make sure there is not any fuel leak from the air
•
bleeding plug port. If any, there is a danger of
causing a fire hazard.
• Wipe away any spilt fuel from areas around the
air bleeding plug. There is a danger of causing
a fire hazard.
Whenever the fuel filter is replaced or the fuel tank
is drained, air bleed the fuel system in the following
manner:
C240
1. Loosen the air bleeding plug (overflow valve) of the
injection pump.
2. Pump the priming pump of the sedimenter until the
fuel coming from the plug hole of the injection pump
is free from bubbles.
3. Reinstall the air bleeding plug securely.
PREVENTIVE MAINTENANCE
4-23
C240
AIR BLEEDING
PLUG
INJECTION
PUMP
PRIMING
PUMP
SEDIMENTER