MTU 12V4000G34F Operating Instructions Manual page 164

Replacing fuel prefilter with high pressure, version B
Note: The filter modules must only be replaced with the engine at a standstill!
1. Provide a suitable container in which to collect the fuel.
2. Stop engine and disable engine start.
3. Close fuel inlet.
4. Open threaded vent plug and ensure that fuel
does not emerge continuously.
Result: The filter can now be changed!
5. If fuel emerges continuously, check shutoff
valve in fuel supply, notify Service.
Note: • As soon as the filter housing is opened,
absolute cleanness is imperative!
• Carefully extract the filter element straight
up avoiding contact with the upper edge of
the cylinder if at all possible to prevent
contamination of the fuel remaining in the
filter housing.
6. Unscrew filter cover (1) and withdraw with fil-
ter element (3) from filter housing (4).
7. Unclip filter element (3) from filter cover (1).
8. Install new O-ring (2) on filter cover (1).
9. Coat new O-rings on filter cover and filter ele-
ment with fuel.
10. Clip new filter element (3) into filter cover (1).
11. Screw filter cover (1) into filter housing.
Result: Filter cover (1) must lie flat on the housing
(4).
12. Use a torque wrench to tighten filter cover (1) to specified tightening torque.
Name
Filter cover
13. Replace other filter elements in the same way.
14. Close threaded vent plug again.
15. Open fuel supply.
16. Vent fuel prefilter (→ Page 167).
17. Check fuel prefilter for leaks.
164 | Fuel Filter | MS15060/01E 2018-12
Size Type
Tightening torque
Lubricant Value/Standard
40 Nm