MTU 12 V 4000 M33F Operating Instructions Manual page 194

6. Connect filling pump to filling connection
(1) on the suction side of the filter.
7. Open vent valve (2) and fill with fuel until
fuel emerges from the vent pipe (3).
8. Close vent valve (2).
9. Open rotary slide valve (4) a little (by ap-
prox. 30°) and open vent valve(s) (2), until
fuel emerges from the vent pipe (3).
10. Close vent valve(s) (2).
11. Turn rotary slide valve (4) back to locked
position.
194 | Task Description | MS150069/02E 2014-03