MTU 20 V 4000 G23 Technical Publication page 123

118
Fuel prefilter – flushing
1. Cut out the contaminated filter.
2. Open vent plug (5) of the filter to be flushed.
3. Unlock drain cock (6) by pressing toggle, open it
and drain fuel.
Result: Fuel flows from filtered side back to
the unfiltered side, flushing the filter deposits
downwards out of the filter.
4. Close vent plug (5) and drain cock (6).
Fuel prefilter – filling fuel
1. Stop engine (→ Page 52)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 gasket in cover (2).
5. Fit cover with gasket and secure it with screws.
6. Check differential pressure (→ Page 114).
Result: If flushing did not lead to an improvement of the differential pressure, replace filter element
(→ Page 119).
M015715/00E 06-08
I Left filter cut in
II Right filter cut in
Task Description
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