WinGD X92 - Page 330

Maintenance3403−3/A1
Winterthur Gas & Diesel Ltd.
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2. Disassemble
CAUTION
Damage Hazard: When you
disassemble the piston,
make sure that you do not
damage the pipes or
nozzles on the spay plate.
1) Put the three jacking screws (94364A,
Fig. 2) fully into the three tap holes in
the top of the piston rod (2). Make sure
that the jacking screws touch the piston
head (3).
2) Equally tighten the three jacking screws
until there is a clearance between the
piston head (3) and the piston rod (2).
3) Attach the engine room crane to the
tool (94341)
4) Use the engine room crane to lift the
piston head (3).
5) Move the piston head (3) to an
applicable area.
6) Remove the jacking screws (94364A)
from the top of the piston rod (2).
CAUTION
Damage Hazard: If it
becomes necessary to
remove the the elastic
bolts, do not use a pipe
wrench. This could cause
damage to the bolt shank.
7) Remove the piston skirt (8) from the
piston rod (2) as given in step a) to
step c):
a) Remove the two screws (9).
b) Use the jacking screws 94364C to
separate the piston skirt (8) from
the piston rod (2).
Note: When you lift the piston skirt
(8) make sure that the spring
dowel pin (11) does not
catch.
c) Lift the piston skirt (8) away from
the the piston rod (2).
8) Remove the eight screws (10).
9) Use the two jacking screws (94364B) to
remove the spray plate (7) from the
piston rod (2).
10) If necessary, remove the pipes (6) and
nozzles (5).
11) Do a check of the top surface of the
piston head, refer to 3403−4.
2015
Piston: Disassemble and Assemble
WCH02674
5
6
7
11
10
2
8
WCH02675
9
Fig. 2: Disassemble
Note: Some parts
can look different
3
4
94341
WCH02924
Note: Some parts
can look different
94364A
94364A
94364A
3
1
2