Maintenance
1903−1/A1
Winterthur Gas & Diesel Ltd.
1/ 3
Pre-tension Checks and Tie Rod Replacement
Tools:
1 Feeler gauge 94122 1 Pressure gauge 94934A
2 Pre-tensioning jacks 94180 3 HP hoses 94935
1 Connection block 94934 1 Hydraulic unit 94942
1. General
We recommend that you check the tension of all the tie rods one year after
commissioning. If necessary, apply tension to the tie rods to the specified value, then
follow the maintenance schedule 0380−1, Tie Rods.
2. Tie Rods − Pre-tension Checks
1) Remove the protection cover (1, Fig.1)
from all tie rods (2).
2) Clean the faces of the intermediate
rings (4).
Note: Start with the tie rods in the middle
of the engine a−a, then b−b etc).
3) Attach the two pre-tensioning jacks
(94180) to the two tie rods (a−a), refer
to 9403−4.
4) Apply 1500 bar to the tie rods (1).
5) Tighten the round nut (3) if possible.
6) If the round nut (3) will not move, do as
follows:
a) Put a brass or copper bar through
the slot in the jack and into a hole
in the round nut.
b) Use a hammer to loosen, then
tighten the nut. Make sure that the
edge of the hole has no
deformation.
7) Remove the pre-tensioning jacks, refer
to 9304−4.
8) Apply a layer of Molykote paste G to
the threads of the tie rod (2) to prevent
corrosion.
9) Install the protection cover (1).
10) Do step 1) to step 9) for the remaining
tie rods.
Tie Rod
2015
Fig. 1
1
4
2
3
WCH02762
fbcdeghij
fbcdeghij
DRIVING END
FREE END
a
a
WCH02762
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