Cleaning Fuel Lift Pump - Vetus M4.55 Operation Manual

4 Maintenance
f , . : StM4050
uel filter art Code
Fuel filter
STM7220
37 Fuel lift pump
• Check, and if necessary clean, filter
inside the fuel lift pump.
• Open the fuel stop cock.
• Check for leakage.
38 Bleeding
After replacing the fuel filter and cleaning
the pilot filter inside the fuel lift pump the
air has to be bled from the fuel system.
For bleeding see page 36.

Cleaning fuel lift pump

Every 500 operating hours.
VD00109
Start the engine
Operate the starter switch until the engine
fires; release the starter switch if the engine
does not fire within 20 seconds. Wait until
the starter motor has stopped before mak-
ing a new attempt to start the engine.
Repeat the above if the engine cuts out
after a short time.
49