Maintenance
2751−2/A1
Winterthur Gas & Diesel Ltd.
5/ 7
3.2 Valve Spindle − Installation
1) Measure the dimensions of the valve
spindle (7, Fig. 4).
2) Compare the values with those given in
0330−1, Exhaust Valve.
3) Do a check of the piston seal ring (17)
for damage. If you find damage,
replace the piston seal ring.
4) If necessary, replace all O-rings.
5) Put oil on the valve spindle (7).
6) Use the two M20 eye bolts and two
ropes or the lifting tool (94209) to to lift
the valve cage to the top of the valve
spindle (7). Make sure that the valve
spindle does not move.
7) Carefully lower the valve cage over the
valve spindle. Make sure that you do
not damage the guide bush.
8) Put oil on the new rod seal (11).
9) Put the new rod seal (11) in position on
the valve spindle (7, Fig. 3).
10) Before you install a new piston seal
ring (17, Fig. 4), do as follows:
a) Put the new piston seal ring in
very hot water for some minutes.
b) Carefully put the piston seal ring
in the correct position on the
piston (16).
3.3 Valve Drive − Assemble
1) Push the valve spindle (7) against the
valve seat (8).
2) Install the cup springs (18).
3) Put the piston (16) in position on the
valve spindle (7).
4) Attach the valve cotters (15) to the
valve spindle (7) with the circlip (33).
5) Attach the lifting tool (94209) to the
valve cage (1) and the crane.
6) Operate the crane to lift the valve
cage (1) to the vertical position.
7) Lower the valve cage (1) on to a
suitable wooden underlay (30).
8) Remove the lifting tool (94209) from the
valve cage (1).
9) Fill the oil bath (6) with system oil.
2017−10
Exhaust Valve: Disassemble and Assemble
29
27
28
41
7
WCH02355
33
16
15
18
17
8
1
WCH02355
6
30
Fig. 4
7
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