Maintenance8460−1/A1
Winterthur Gas & Diesel Ltd.
2/ 5
1. Preparation
WARNING
Injury Hazard: The servo oil system has high pressure. Replace a
defective hydraulic pipe only when the engine has stopped.
1) Stop the engine (see the Operation Manual 4002-2).
2) Set to off the service pump.
3) Make sure that there is no pressure in the servo oil system (see the data given in the
Operation Manual 0520-1).
4) Set to off the main bearing oil supply.
WARNING
Injury Hazard: Always put
on gloves and safety
goggles when you do work
on hot components. When
drain screws and plugs are
opened, servo oil can
come out as a spray and
cause injury.
5) Put an oil tray under the applicable
hydraulic pipe (1, Fig. 2).
6) Loosen the screws (5) on the flange (2)
to drain the applicable hydraulic
pipe (1) through the check bore (3) in
the housing of the VCU (4).
Hydraulic Pipe for Exhaust Valve Drive: Removal, Grind Sealing Faces and Installation
2015
Fig. 2
1
3
2
5
4
WCH02952
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