Kubota D650-B Handbuch Seite 24

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(5) Inspection of Fuel Filter (not included in the
basic engine)
Water and foreign matter in fuel are accumulated in the
filter. Periodically clean it and exchange the filter element.
1) Close the fuel filter cock.
2)
Loosen the retaining ring on the filter cup and clean the
filter cup and element in light oil.
When assembling, prevent dust entering and vent air from the
fuel system.
111 Cock lever
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Filter cup
(31 Retaining ring
(4) Element
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ring
(6)
Air vent screw
(6) Venting the Fuel System
Air must be vented when:
• The fuel filter and piping are removed.
• The fuel tank becomes completely empty.
• The engine has not been used for an extended time.
Venting procedure is as follows:
1)
Fill the fuel tank with fuel, and open the fuel cock.
2)
Twist off the air vent screw at the top of the filter by
turning it twice.
3)
When bubbles disappear from fuel coming out of the plug,
twist it back on.
4)
Open the air vent plug on the fuel injection pump.
5)
Pull the engine stop lever back completely to stop the
engine, and run the starter for about 10 seconds.
6)
Close the air vent plug when air bubbles disappear from
the fuel flowing out.
(J
mportant)
• Do not perform venting when the engine is hot.
(1) Air vent screw
28