Operation0515−1/A1
Winterthur Gas & Diesel Ltd.
8/ 8
4.3 Procedure
WARNING
Injury Hazard: Replace the PCV only when the engine has
stopped. The oil supply pipe from the bearing oil system and the
fuel rail must have zero pressure.
1) Stop the engine.
2) Turn the knurled screw (4, Fig. 4) to the bottom stop.
3) Do a check of the oil supply to the fuel pressure control valve.
4) Set to off the fuel booster pump 3.15 and the bearing oil pump.
5) Use the hand lever (6) on fuel shut-down pilot valve (5) to release the pressure in
the fuel rail.
6) Clean the filter in the inlet.
7) Overhaul or replace the defective fuel pressure control valve (2) as soon as
possible. See the procedure in the Maintenance Manual 5562−1.
FUEL SIDE
DRIVING END
3
2
5
2
013.408/05
7
016.861/08
1
4
6
Fig. 4: Fuel Pressure Control Valve
1 Rail unit 5 Fuel shut-down pilot valve 3.08
2 Fuel pressure control valve 3.06 6 Hand lever
3 Fuel rail 3.05 7 Oil supply pipe (bearing oil system)
4 Knurled screw
2014
Faults in High Pressure Fuel System
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