TEUPEN LEO 21GT, Manual

Page: 308 / 356

PERIODIC SERVICE 12
ENGLISH
[PROCEDURE]
1. Fill the fuel tank to the fullest extent. Open the fuel filter
lever.
2. Loosen air vent plug of the fuel filter a few turns.
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.
B
Checking the fuel pipes
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.
B
Cleaning 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.
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.
A
Entrance of dust and dirt can cause a malfunction of
the fuel injection pump and the injection nozzle. Wash
the fuel filter cup periodically.
(1) Fuel filter lever
(2) Air vent plug
(3) Fuel filter pot (A) "ON"
(B) "OFF"
(1) Clamp band
(2) Fuel pipe
(1) Fuel filter lever
(2) Fuel filter pot (A) "OFF"
(B) "ON"
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