Maintenance
9403−3/A1
Winterthur Gas & Diesel Ltd.
1/ 11
Storing, Servicing and Maintenance
1. General
The hydraulic pre-tensioning jacks as engine tool kit are to be stored in their tool
boxes when not in use. Grease them after use and close the connections with dust
plugs. We recommend for each jack to keep a sealing−kit (KJ−) in stock.
Always pay attention to the correct position when fitting new back-up and
O-rings as shown on the following pages.
When inserting new back-up and O-rings proceed with care to avoid their
damage; do not use any sharp edged utensils for assistance!
Heat uncut back-up rings in boiling water before fitting them.
1.1 Dimensions of back-up and O-rings
Tool
No.
Place of application of
pre-tensioning jack
Part Back-up ring
(uncut)
O-ring
Dimension [mm]
o∅ x i∅ x t i∅ x s
94110 Thrust device for main bearing cover piston
cylinder
112 x 102.6 x 1.7
80.2 x 74 x 1.4
100.97 x 5.33
63.09 x 3.53
94114 Elastic bolts to main bearing piston
cylinder
191 x 178.8 x 2.5
129.4 x 120 x 1.7
177.17 x 6.99
120.02 x 5.33
94145 Foundation bolts and engine stays piston
cylinder
121 x 111.6 x 1.7
94.4 x 85 x 1.7
110.49 x 5.33
85.09 x 5.33
94180 Tie rods piston
cylinder
350 x 337.8 x 2.5
254.2 x 242 x 2.5
329.57 x 6.99
240.67 x 6.99
94215A Elastic bolts to cylinder cover piston
cylinder
192 x 179.8 x 2.5
128.4 x 119 x 1.7
177.17 x 6.99
120.02 x 5.33
94252 Elastic bolts to exhaust valve cage
and lower connecting rod studs
piston
cylinder
161x 148.8 x 2.5
111.4 x 102 x 1.7
148.59 x 6.99
100.97 x 5.33
94315 Elastic bolts to upper connecting rod
bearing
piston
cylinder
150 x 137.8 x 2.5
113.4 x 104 x 1.7
135.89 x 6.99
104.14 x 5.33
94320 Turning gear piston
cylinder
98 x 88.6 x 1.7
80 x 73.8 x 1.4
88.27 x 5.33
72.62 x 3.53
4.42x2.62
94340 Piston, piston rod and crosshead piston
cylinder
68 x 61.8 x 1.4
52.2 x 46 x 1.4
59.92 x 3.53
47.22 x 3.53
94557 Elastic studs on supply unit piston
cylinder
86 x 76.6 x 1.7
66.2 x 60 x 1.4
75.57 x 5.33
59.92 x 3.53
O-ring
t
i∅
o∅
i∅o∅
002.696/98
Back-up ring
s
011.032/03
Fig. 1
2015
Hydraulic Pre-tensioning Jacks
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