Maintenance
9403
−
3/A1
Winterthur Gas & Diesel Ltd.
Hydraulic Pre-tensioning Jacks
Storage, Servicing and Maintenance
1.
General
The hydraulic pre-tensioning jacks must be kept in their tool boxes when not in use. After
you use the pre-tensioning jacks, close the connections with plugs and apply grease.
We recommend that, for each jack, you keep a sealing kit (KJ
−
) in stock.
Always make sure that new back-up rings and O-rings are installed in their correct
positions, as shown in the data that follows.
Note: Carefully install new back-up rings and O-rings to prevent damage. Do not
use tools with sharp edges.
Put uncut back-up rings in hot water before you install them.
1.1
Dimensions of back-up Rings and O-rings
Tool
No.
Position of application of
pre-tensioning jack
Part
Back-up ring
(uncut)
O-ring
Dimension
[mm]
o
x i
x t
i
x s
94114
Elastic bolts to main bearing
piston
D. cylinder
61 x 54.8 x 1.4
53.2 x 47 x 1.4
53.57 x 3.53
47.22 x 3.53
lower Cyl.
7.52 x 3.53
94145
Foundation bolts and engine stays
piston
cylinder
75 x 68.8 x 1.4
60.2 x 54 x 1.4
66.27 x 3.53
53.57 x 3.53
94180
Tie rods
piston
D. cylinder
68 x 61.8 x 1.4
58.2 x 52 x 1.4
59.92 x 3.53
53.57 x 3.53
lower Cyl.
7.52 x 3.53
94215
Elastic bolts to cylinder cover
piston
cylinder
83 x 76.8 x 1.4
58.2 x 52 x 1.4
75.79 x 3.53
53.57 x 3.53
94252
Elastic bolts to exhaust valve cage
piston
cylinder
74 x 67.8 x 1.4
58.2 x 52 x 1.4
59.92 x 3.53
53.57 x 3.53
94314
Elastic bolts to bottom end bearing
piston
cylinder
92 x 82.6 x 1.7
68.2 x 62 x 1.4
81.92 x 5.33
63.09 x 3.53
94315
Elastic bolts to top end bearing
piston
cylinder
64 x 57.8 x 1.4
53.2 x 47 x 1.4
56.74 x 3.53
47.22 x 3.53
O-ring
t
i
o
i
o
002.696/98
Back-up ring
s
011.032/03
Fig. 1
2017
Summary of Contents for X35-B
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