UniCarriers FG20 Series Operation & Maintenance Manual page 115

V2403
1. Turn the air bleeding plug above the injection pump
counterclockwise to open it.
2. Turn the starter switch to the ON position.
3. The electromagnetic fuel pump operates to send fuel
under pressure into the fuel circuit and air bleeding
will be completed in a couple of minutes.
4. Turn the starter switch to the START position to
crank the engine. Check for fuel leakage in the fuel
system.
5. Turn the air bleeding plug clockwise to close it.
CAUTION
Keep the air bleeding plug of the fuel injection
pump closed at all times except in the case of air
bleeding; otherwise the engine might stall.
PREVENTIVE MAINTENANCE
4-24
Fuel filter
AIR BLEEDING PLUG
PRIMING PUMP
SEDIMENTER