Operation0525−1/A1
Winterthur Gas & Diesel Ltd.
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7) In the new 4/2−way valve (6, Fig. 1), make sure that the correct new O-rings are
installed.
8) Make sure that the mating surfaces of the 4/2-way valve (6) and the VCU (1) are
clean.
9) Make sure that the small M6 orifice is installed in one of the four ports (P-port) in
the VCU (1).
10) Put the 4/2−way valve (6) in position. Make sure that the bores are correctly
aligned.
11) Tighten the four screws (5).
12) Close the screw plug (3).
13) Connect the electrical connection to the 4/2-way valve. Make sure that the
connection is tight.
14) Set to on the main bearing oil supply.
DRIVING END
3
1
2
WCH02301
I
I
1
WCH02585
6
4
5
Fig. 1: Servo Oil Rail and VCU
1 Exhaust Valve control unit (VCU) 4 Electrical connection
2 Servo oil rail 5 Screw
3 Screw plug 6 4/2-way valve
2014
Faults in Servo Oil System
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