MTU 12V4000M73 series Operating Instructions Manual page 203

Fuel prefilter with water separa-
tor – Filter element replacement
1. Cut out the filter to be replaced (A or B):
1 Filter A cut out
2 Filter B cut out
2. Open vent valve (3) of the filter to be re-
placed.
3. Unlock drain valve (4) by pressing toggle and
open it.
4. Drain water and contaminants from filter.
5. Close drain valve.
6. Loosen screws (1) and (2).
7. Turn filter housing aside around screw (2) un-
til filter element is accessible.
8. Remove filter element (5) with spring (6).
9. Insert a new filter element in the filter hous-
ing.
10. Insert new O-ring and turn filter housing back
into position.
11. Tighten screws (1) and (2) finger-tight.
12. Tighten screws evenly to specified torque using a torque wrench (max. half a turn per screw).
Name
Screw
Size Type
Tightening torque
Lubricant
MS150045/03E 2018-08 | Fuel Filter | 201
Value/Standard
40 Nm