Maintenance
1132−1/A1
Winterthur Gas & Diesel Ltd.
1/ 1
Elastic Studs − Loosen and Apply Tension
Tools:
2 Double pre-tensioning jacks 94114 4 Coupling elements 94934G
1 Feeler gauge 94122 3 HP hose 94935
1 Pressure gauge 94934A 1 Hydraulic unit 94942
1 Distributing piece 94934C
Note: Always use the hydraulic double pre-tensioning jacks (94114, Fig.1) to
loosen and apply tension to:
D The main bearing elastic studs (1)
D The 1st main bearing cover (2) that has only two elastic studs (1).
1) Connect only the jack that is in use to the hydraulic unit.
2) Do the general preparation for hydraulic jacks (94114), refer to 9403−4,
paragraph 1.
3) Make sure that there is oil on the threads of the elastic studs (1).
4) To loosen, do the procedure in 9403−4, paragraph 2.2 and 2.3.
5) To apply tension, do the procedure in 9403−4, paragraph 3, 3.2 and 3.3.
Note: The value for the pre-tensioning jacks (94114) is 1500 bar in one step.
6) Use the feeler gauge (94122) to do the check of the horizontal and vertical
clearance of the main bearing, refer to 0330−1, Crankshaft and Main Bearing.
All main bearing clearance values are applicable only with tightened elastic studs and
tie rods.
94114
1
2
WCH02321
Fig. 1
2015
Main Bearing
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