MTU 12 V 2000 M72 Operating Instructions Manual page 94

2. Open threaded vent plug (5) of the filter to
be flushed.
3. Unlock drain valve (6) by pressing toggle,
open it and drain fuel.
Result: Fuel flows from filtered side back to the un‐
filtered side, flushing the filter deposits
downwards out of the filter.
4. Close threaded vent plug (5) and drain
valve (6).
Fuel prefilter – Filling with fuel
1. Stop engine (→ Operating Instructions for electronic system ) and disable engine start.
2. Remove screws securing the cover and take off cover (2).
3. Fill filter housing with clean fuel.
4. Place new seal in cover (2).
5. Fit cover with gasket and secure it with screws.
6. Check differential pressure (→ Page 91).
Result: If flushing did not improve differential pressure, fit new filter element in fuel prefilter (→ Page 95).
94 | Task Description | M015650/03E 2011-10