Maintenance
5612−1/A1
RT-flex50-D
Wärtsilä Switzerland Ltd
Key to Illustrations:
1 Servo oil rail
15 Filter holder
2 Drain screw
16 Seal
3 Screw plug
17 Circlip
4 Valve control block
18 Oil filter
5 Allen screw M16x160
19 Orifice
6 Piston
20 Rail valve (pre-control valve)
7 Sealing flange
21 Allen screw M4x16
8 O-ring & back-up ring
22 Return pipe
9 Pan head screw M5
23 Dowel pin
10 Cover
24...26 O-rings
11 Allen screw M10x40
12 Compression spring
13 Slide rod
RC Eye bolt
14 Screw plug with seal
AF Seating surface
1.
General
The piston and slide rod should be checked at random according to Maintenance
Schedule 0380−1.
When working on the exhaust valve control unit the engine has to be stopped.
Attention! Servo oil pipings must be pressureless and properly drained by means
of carefully opening drain screw 2 and screw plug 3.
Follow the instruction in 0520−1 of the Operating Manual without fail!
The respective work station must be clean; welding and grinding should not be
done nearby!
TO EXHAUST VALVE
SEE 8460−1
A
2
1
22
3
4
WCH00694
Exhaust Valve Control Unit
Removal, Fitting, Dismantling and Assembling
2011-12
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