Kubota Z400-B Handbuch Seite 113

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Changing Engine Oil Filter Cartridge
1. Remove the oil filter cartridge with a filter wrench.
2. Apply engine oil to the rubber gasket on the new cart
ridge.
3.
Screw in the new cartridge in by hand.
• NOTE:
• Over-tightening may cause deformation of the rubber gas·
keto
• After, the cartridge has been replaced, engine oil normally
decreases a little.
Check the oil level (See page S-29) and add new oil to the
specified level.
(1) Filter Cartridge
Bleeding Fuel System
1. Fill the fuel tank with fuel, and open the fuel cock (1).
2. Loosen the air vent plug (2) 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 cock on top of the fuel injection pump.
5. Retighten the plug when bubbles do not come up any
more .
• NOTE:
• Always keep the air vent cock on the fuel injection pump
closed except when air is vented, or it may cause the
engine to stop.
(1) Fuel Cock
(2) Air Vent Plug
Checking Fuel Pipe
Check the fuel pipes every 50 hours of operation.
1. If the clamp (1) is loose, apply oil to the threads and
securely retighten it.
2. The fuel pipe (2) is made of rubber and ages regardless of
the period of service.
Change the fuel pipe together with the clamp every two
years.
3. However, if the fuel pipe and clamp are found to be
damaged or deteriorate earlier than two years, then
change or remedy.
4. After the fuel pipe and the clamp have been changed,
bleed the fuel system.
A
CAUTION:
• Stop the engine when attempting the check and change
prescribed above.
(1) Clamp
(2) Fuel Pipe
S-31