Technical data

Fuel Filter 6–31

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 3 – 06)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 6 – 27).

Result: If flushing did not lead to an improvement of the differential pressure, replace filter element

(→

Page 6 – 32).