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, tension them to the specified value. After that follow the
maintenance schedule 0380−1.
2. Pre-tension Check
1) Remove the protection cover (5) from
all tie rods (4, Fig. 1).
2) Clean the surfaces of the intermediate
rings (2).
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 (4, a−a)
refer to 9403−4.
4) Apply 1500 bar to the tie rods (4).
5) Tighten the round nuts (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 (4) to prevent
corrosion.
9) Install the protection cover (5).
10) Do step 1) to step 9) for the remaining
tie rods.
Tie Rod
2015
5
2
4
3
1
WCH02345
Fig. 1
DRIVING END
FREE END
WCH02345
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