Maintenance
1224−1/A1
RT-flex50-D
Wärtsilä Switzerland Ltd
3/ 6
2. Fitting
Make absolutely sure that all the thrust bearing pads are meticulously clean and
smeared with fresh engine oil; the thrust bearing pads must all be replaced in their
original position. Note the numbering of the individual pads! Also refer to the follow-
ing pages for the arrangement of thrust bearing pads on engines with fixed pitch
propellers (F.P.P.) and controllable pitch propellers (C.P.P.) respectively.
For fitting the thrust bearing pads tools 94155 or 94155a respectively can also be
utilized. Note in this respect that the first pad, when pushed in, rests against the
tool. The following thrust bearing pads can then be fitted one after the other while
simultaneously turning the crankshaft. The thrust bearing pads should slide in
without effort to their end position.
With all the thrust bearing pads in position the distances from the outermost pads
on fuel side and exhaust side to the upper edge of the bedplate must be equal. The
arbor supports 4, 4a can now be refitted.
Screws 3 (Fig. ’A’) used for arbor supports must be secured with LOCTITE No.
222.
Subsequently check the clearances between arbor supports and thrust bearing
pads 5 and 5a (see Clearance Table 0330−1 ’Crankshaft and thrust bearing’).
Attention! After fitting the thrust bearing pads immediately remove tool 94155 or
94155a respectively.
Remark: When fitting new or remetalled thrust bearing pads, care must be taken
that their thickness (final dimension) corresponds exactly with the neighbouring
pads.
When replacing a complete row of new or remetalled thrust bearing pads the clear-
ance must be adjusted to the original values (see Clearance Table 0330−1 ’Crank-
shaft and thrust bearing’ and 1203−1).
2010
Removal and Fitting the Thrust Bearing Pads
CHECK
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