Fuel prefilter with switchable
duplex filter – Flushing
1.
Cut out contaminated filter (A or B):
1 Filter A switched off
2 Filter B switched off
2.
Open threaded vent plug (1) of filter to be
flushed.
3.
Remove drain valve (2) and drain fuel.
Result:
Fuel flows from filtered side back to unfil-
tered side, flushing filter deposits downwards
out of the filter.
4.
Close threaded vent plug (1) and drain
valve (2).
Fuel prefilter with switchable duplex filter – Filling
1.
Stop engine (→ Page 57) and disable engine start.
124 | Fuel Filter | M015650/06E 2018-05
TIM-ID: 0000064788 - 003
