WinGD RT-flex50DF, Maintenance Manual, Page: 525 / 586

Maintenance
9403 − 3/A1
Winterthur Gas & Diesel Ltd.
1/ 11
Storage, Servicing and Maintenance
1. General
The pre-tensioning jacks are part of the engine tool kit. When the pre-tensioning jacks
are not in use, make sure that:
D The dust plugs are installed in the open connections
D Grease is applied to the applicable areas
D The pre − tensioning jacks are in their toolboxes
D The toolboxes stay in a clean dry area away from contamination.
It is recommended that you keep a sufficient number of new back-up and O-rings of
the specified quality and dimensions.
Refer to Table 1 for the correct positions for the O-rings and back-up rings during
installation.
Put the back-up rings in hot water before installation.
To prevent damage, install carefully the back-up rings and O-rings. Do not use tools
with sharp edges.
Table 1
Tool
Number
Position of Pre-tensioning Jack Part Back-up Ring
(not cut)
O-ring
Dimension (mm)
o ∅ x i ∅ x t i ∅ x s
94114B Elastic studs − main bearing Piston
Cylinder
95.4 x 86 x 1.7
66.2 x 60 x 1.4
88.27 x 5.33
59.92 x 3.53
94145 Foundation bolts and engine stays Piston
Cylinder
92 x 82.6 x 1.7
79.2 x 73 x 1.4
81.92 x 5.33
72.62 x 3.53
94180A Tie rods (with M80x6 thread diameter) Piston
Cylinder
183 x 170.8 x 2.5
127.4 x 118 x 1.7
164.47 x 6.99
116.84 x 5.33
94215A Elastic studs − cylinder cover Piston
Cylinder
110 x 100.6 x 1.7
93.4 x 84 x 1.7
97.79 x 5.33
85.09 x 5.33
94252 Elastic studs − exhaust valve Piston
Cylinder
152 x 138.8 x 2.5
105.4 x 96 x 1.7
135.89 x 6.99
94.62 x 5.33
94314 Elastic studs − bottom end bearing Piston
Cylinder
115 x 105.6 x 1.7
94.4 x 85 x 1.7
104.14 x 5.33
85.09 x 5.33
94315 Elastic studs − top end bearing Piston
Cylinder
105 x 95.6 x 1.7
76.2 x 70 x 1.4
94.62 x 5.33
69.44 x 3.53
Hydraulic Pre-tensioning Jacks
2016