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BAir bleeding the fuel system
CAUTION
To avoid personal injury;
A Do not bleed a hot engine as this
could cause fuel to spill onto a hot
exhaust manifold creating a danger
of fire.
Air bleeding of the fuel system is required if;
A after the fuel filter and pipes have been detached
and refitted;
A after the fuel tank has become empty; or
A before the engine is to be used after a long storage.
[PROCEDURE
] (gravity feed fuel tanks)
1. Fill the fuel tank to the fullest extent. Open the fuel
filter lever.
2. Loosen the air vent plug on top of the fuel injection
pump.
3. Screw back the plug when bubbles do not come up
any more.
4. Open the air vent plug on top of the fuel injection
pump.
5. Retighten the plug when bubbles do not come up
any more.
[GRAVITY FEED SYSTEM]
(1) Air vent plug
(2) Injection pump
PERIODIC SERVICE
BChecking the fuel pipes
CAUTION
To avoid personal injury;
A Check or replace the fuel pipes after
stopping the engine. Broken fuel
pipes can cause fires.
Check the fuel pipes every 50 hours of operation. When
if;
1. If the clamp band is loose, apply oil to the screw of
the band, and tighten the band securely.
2. If the fuel pipes, made of rubber, became worn out,
replace them and clamp bands every 2 years.
3. If the fuel pipes and clamp bands are found worn or
damaged before 2 years' time, replace or repair
them at once.
4. After replacement of the pipes and bands, air-bleed
the fuel system.
A When the fuel pipes are not installed, plug them at
both ends with clean cloth or paper to prevent dirt
from entering. Dirt in the pipes can cause fuel
injection pump malfunction.
BCleaning the fuel filter pot
Every 100 hours of operation, clean the fuel filter in a
clean place to prevent dust intrusion.
1. Close the fuel filter lever.
(1) Fuel filter lever
(2) Fuel filter pot
2. Remove the top cap, and rinse the inside with diesel
fuel.
3. Take out the element, and rinse it with diesel fuel.
4. After cleaning, reinstall the fuel filter, keeping out of
dust and dirt.
5. Air-bleed the injection pump.
13
(A) "OFF"
(B) "ON"
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