MTU 12V4000M73 series Operating Instructions Manual page 228

Centrifugal oil filter – Cleaning
and filter-sleeve replacement
1. Remove clamp (14).
2. Loosen cover screw (2) and take off hood (1).
3. Carefully lift rotor (11), allow oil to drain and
remove from housing.
4. Holding the rotor (11) firmly, loosen rotor
cover nut (3).
5. Take off rotor cover (4).
6. Remove filter sleeve (6).
7. Measure thickness of oil residues on filter
sleeve (6).
Result: Shorten maintenance interval if the oil resi-
dues exceed the maximum thickness of
45 mm.
8. Disassemble rotor pipe (7), conical disk (8)
and rotor base (10).
9. Wash rotor cover (4), rotor pipe (7), conical
disk (8) and rotor base (10) with cold cleaner.
10. Blow out with compressed air.
11. Check sealing ring (9), replace if necessary.
12. Assemble rotor pipe (7), conical disk (8) and
rotor base (10) with sealing ring (9).
13. Insert new filter sleeve (6) in rotor pipe (7)
with the smooth paper surface facing the out-
er wall.
14. Check sealing ring (5), replace if necessary.
15. Install rotor cover (4) with sealing ring (5).
16. Use torque wrench to tighten rotor cover nut (3) to specified tightening torque.
Name
Nut
17. Insert rotor (11) in housing (12) and check for ease of movement.
18. Check sealing ring (13), replace if necessary.
19. Place sealing ring (13) on housing (12).
20. Fit hood (1).
21. Tighten cover screw (2) by hand.
22. Install clamp (14) and use torque wrench to tighten to specified tightening torque.
Name
Clamp
23. Use torque wrench to tighten cover screw (2) to specified tightening torque.
Name
Screw
226 | Oil Filtration / Cooling | MS150045/03E 2018-08
Size Type
Tightening torque
Size Type
Tightening torque
Size Type
Tightening torque
Lubricant Value/Standard
80 Nm ±12 Nm
Lubricant Value/Standard
20 Nm ± 3 Nm
Lubricant Value/Standard
7 Nm ± 1 Nm