2.
Connect filling pump to filling connection (1)
on intake side of filter.
3.
Open vent valve (2) and fill with fuel until fuel
emerges from vent pipe (3).
4.
Close vent valve (2).
5.
Open rotary slide valve (4) a little (by approx.
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 po-
sition.
8.
Check differential pressure (→ Page 118).
Result:
If flushing did not improve differential pres-
sure, replace fuel prefilter element
(→ Page 126).
M015650/06E 2018-05
| Fuel Filter | 125
TIM-ID: 0000064788 - 003
