Maintenance
8447−1/A1
RT-flex58T-E
Winterthur Gas & Diesel Ltd.
1/ 4
Tools: Key to Illustrations:
1 Regrinding device 94834 1 Servo oil rail 10 Thrust ring
2 HP servo oil pipe 11 Non-return valve
3 HP servo oil pipe 12 Valve housing
4,4a,4b Screw 13 Connecting block
5,5a Flange 14 Screw plug
6 Screw 15,16 O-ring
7 Intermediate piece
8 Non-return valve DF Sealing face
9 Claw OE Oil inlet
2. Removal
D Depending on the HP servo oil pipe to be removed, the
pipes from servo oil service pump 4.88 to oil inlet ’OE’ (Fig.
’B’) must also be removed.
D To remove servo oil piping 2, the relevant servo oil piping 3
must be removed first.
D Pay attention not to damage sealing faces ’DF’.
D All connections must be closed off immediately and the
sealing faces must be protected against any damages.
A
1. General
The engine must be stopped and then the HP servo oil pipe can
be drained via leakage oil pipes (or screw plug 14), however
also a tray should be placed under the connecting blocks. See
Fig. ’B’.
In order to separate HP servo oil pipe from its sealing faces
’DF’, proceed as follows:
⇒ Loosen screws 4b and push flange 5a back at valve housing
12.
⇒ Loosen screws 4 and push flange 5 back at connecting block
13.
Non-return valves 11 prevents servo oil rail from discharging.
1
2
3
WCH01049
HP Servo Oil Pipe
Removing, Fitting and Regrinding
V2 / 2013
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