Draining Fuel Prefilter - MTU 12 V 4000 M33F Operating Instructions Manual

6.7.6 Fuel prefilter – Draining
Preconditions
☑Engine is stopped and starting disabled.
WARNING
Fuels are combustible.
Risk of fire and explosion!
• Avoid open flames, electrical sparks and ignition sources.
• Do not smoke.

Draining fuel prefilter

1. Cut out the filter to be replaced (A or B).
1 Filter A cut out
2 Filter B cut out
2. Open vent plug (1) of filter to be drained.
3. Open drain valve (2).
4. Drain water and contaminants from filter
until pure fuel emerges.
5. Close drain cock (2).
MS150069/02E 2014-03 | Task Description | 193