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2.
Open vent plug (1) of filter to be flushed.
3.
Open drain valve (2) 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 vent plug (1) and drain valve (2).
Fuel prefilter – Filling with fuel
1.
Stop engine (→ Page 86) and disable engine start.
2.
Connect filling pump to filling connection
(1) on the suction side of the filter.
3.
Open vent valve (2) and fill with fuel until
fuel emerges from the vent pipe (3).
4.
Close vent valve (2).
5.
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).
6.
Close vent valve(s) (2).
7.
Turn rotary slide valve (4) back to locked
position.
8.
Check differential pressure (→ Page 190).
Result:
Replace filter element in fuel prefilter
(→ Page 195) if flushing did not improve dif-
ferential pressure.
194 | Task Description | MS150068/01E 2014-01
TIM-ID: 0000012728 - 006
Содержание 12 V 4000 M23F
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