MAINTENANCE 4
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4.7 HAND PRIMER PUMP ______________________________________________________
The hand primer pump (F) is used to purge air from the
fuel system. The entire pump assembly is replaceable if
necessary. See the parts list for fuel manager service
parts.
1. Carefully remove the black retaing ring. The primer
pump is spring loaded.
2. Remove hand pump components and replace with
new compoents.
Figure 4B
4.8 BLEEDING FUEL SYSTEM __________________________________________________
Bleed the fuel system if the water separater, fuel filter, or
hoses have been removed, or the fuel tank has become
empty.
1. Loosen the air vent (E) one to two turns.
2. Fully depress and release hand primer pump
plunger (F) until all air has escaped. Up to s ixty
pumps of the hand primer may be required.
3. Close air vent (E).
4. Loosen air vent bolt (G) on engine fuel injector
pump.
5. Engage the parking brake.
6. Turn the keyswitch, cranking the engine until all air
has escaped. Turn the keyswitch to the off position.
7. Tighten air vent bolt (G).
Figure 4C
Figure 4D
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