Operation
5556−2/A1
Winterthur Gas & Diesel Ltd.
1/ 5
Fuel Pump − Cutting Out and Cutting In
1. General 1..........................................................
2. Cutting Out and Cutting In 1.........................................
2.1 Cutting Out Procedure 2.......................................
2.2 Cutting In Procedure 5........................................
2.3 Completion 5.................................................
1. General
If a fuel pump is unserviceable (e.g. the pump plunger cannot move) or the HP fuel
pipe is broken (between the fuel pump and the fuel rail) the fault must be repaired
immediately.
If the fault cannot be repaired, because the engine must operate, it is possible to cut
out the unserviceable fuel pump.
WARNING
Injury Hazard: Cutting out and cutting in of unserviceable fuel
pumps must only be done when the engine has stopped.
CAUTION
Damage Hazard: You must not operate the engine with a fuel
pump removed. This will decrease the supply of oil, i.e. there
could be a decrease of lubrication to the other fuel pumps.
Note: If one fuel pump is cut out, there is almost no limit in engine operation. If
more than one pump is cut out, you can only operate the engine at
decreased load. When a fuel pump is cut out, oil in the system will
decrease.
2017−08
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