2-4
MAINTENANCE
installation
1. Apply a light coat of engine oil to the O-ring.
2. Supply fuel to the new fuel filter.
This will facilitate air bleeding.
3. Turn in the new fuel filter until the filter O-ring is fit-
ted against the sealing face.
4. Use the filter wrench to turn in the fuel filter an addi-
tional 2/3 of a turn.
Overflow Valve
Check the overflow valve for clogging.
Check the ball side for suction leakage
kg/cm2( psi)
Overflow Valve Opening
Pressure (Reference)
1.5 (21)
.
.
-.
Injection Nozzle
Inspection procedure
1. Clamp the injection nozzle holder in a vise.
2. Use a wrench to remove the injection nozzle holder
cap.
3. Remove the injection nozzle holder from the vise.
r
Adjusting Procedure
Injection Starting Pressure Check
1. Attach the injection nozzle holder to the injection
nozzle tester.
2. Loosen the adjusting screw 0.
3. Check the injection nozzle starting pressure and the
spray condition by operating the injection nozzle
tester.
4. Adjust the injection nozzle starting pressure.
Turn the adjusting screw clockwise while operating
the injection nozzle tester handle.
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