Cartridge Replacement In The Fine Fuel Filter; Fuel System Venting - Zetor CRYSTAL Series Operator's Manual

MAINTENANCE INSTRUCTIONS

Cartridge Replacement in the Fine Fuel Filter

C15N079
1 - Cover
2 - Sealing ring
3 - Jacket
4 - Guide
5 - Filter element
6 - Clamp
Procedure for filter element replacement
Release the cover (1) by 2 to 3 revolutions and wait ca. 30 seconds.
Unscrew the cover (1) in anticlockwise direction.
Carefully release the filter body from the guide (4) in the jacket (5) in the upward direction.
Catch the leaking fuel in a suitable vessel.
Slightly bend the filter element (5) in the retaining vessel to the side until the element is released from the
clamp (6).
Clean the components.
Replace the sealing ring (2) and oil it slightly.
Press the new filter element (5) into the clamp (6) and carefully put them together in the guide (4).
Firmly screw the cover (1) (25 Nm) in clockwise direction.
Check the tightness when the engine is running.

Fuel system venting

Release the bleeder screw (2).
Unlock the bayonet closure of the fuel pump (1) by
simultaneous pressing and turning and in anticlockwise
direction. The pump piston is now pressed out due to the
force of the spring.
Pump until no air leaks from the bleeder screw.
Tighten the bleeder screw (6.5) with the tightening torque
of 6.5 ± 1.3 Nm.
Lock the bayonet closure of the fuel pump (1) by
simultaneous pressing and turning and in clockwise
direction.
Start the engine and leave it running for ca. 5 minutes
C15N085
when engine idling or at low load. During this check the
tightness of the fuel system.
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