2.
Loosen threaded vent plugs (2, 3) and un-
screw at least one rotation.
Note:
• Only operate the fuel priming pump man-
ually!
• Move the piston of the pump only vertical-
ly to avoid damaging the pump!
3.
Unlock fuel priming pump, screw out han-
dle (1).
Note:
Catch escaping fuel with a suitable rag.
4.
Operate fuel priming pump handle (1) until
bubble-free fuel emerges from the threaded
vent plugs (2, 3).
Note:
Never actuate the handle with the threaded
vent plugs closed!
5.
Move handle (1) of fuel priming pump back
and screw in.
6.
Close threaded vent plugs (2, 3) and tighten
by hand.
Venting fuel prefilter in case of
gauge pressure, version B
1.
Open fuel supply as necessary.
2.
Carefully loosen threaded vent plugs (1) and
unscrew at least one rotation.
3.
Leave threaded vent plugs (1) opened until
bubble-free fuel emerges at the vent plugs.
4.
Close threaded vent plugs (1) and tighten by
hand.
MS15039/01E 2018-11
| Fuel Filter | 227
TIM-ID: 0000058279 - 008