I
Center bolt
Drain plug
The fuel system without the water sedimentor
Drain the sedimented water in the fuel filter body every 200
operation hours.
1) Loosen the drain plug at the lower top of the fuel filter.
Drain the fuel in the fuel body together with the mixed water.
2) Be sure to tighten the drain plug on completion of draining.
,
NOTICE:
7. The cartridge and cup contain fuel. Take care not to
spill it during disassembly.
2. Perform the “fuel system air bleeding” after the water
in the fuel is drained.
Fig. 26
(2)
Fuel System Air Bleeding
‘1)
2)
3)
The entry of air into the fuel system will cause hard engine
starting or engine malfunction.
When once the servicing such as emptying the fuel tank,
draining for the water sedimentor, and the fuel filter element
change is done, be sure to conduct air bleeding.
Air bleeding procedure:
Loosen the bleeding screws on the fuel injection pump.
Turn the feed pump knob counterclockwise until the pump knob
is forced up by spring.
Depressing the pump knob will cause to drain out the air mixed
fuel from the loosened bleeding screws.
60
Fig. 27
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