Maintenance
0330−1/A1
RT-flex50-D
Wärtsilä Switzerland Ltd
15/ 25
Group
Key No.
Description Measuring
direction
(method of
measuring)
Nominal
dimension
(normal, new)
[mm]
Maximum clearance,
dimension
(due to wear)
[mm]
3303
3326
Top end bearing
Crosshead pin outer ∅
532
0
− 0.04
4
Bearing inner ∅ 532
1 Bearing clearance vertical 0.20−0.40 0.60
*2 Lateral clearance total 0.40−0.60
*3 Lateral clearance total 0.20−0.40
3303 Bottom end bearing
Crankshaft outer ∅
600
0
− 0.07
Bearing inner ∅ 600
4 Bearing clearance vertical 0.30−0.50 0.65
*5 Lateral clearance total 0.20−0.40
*6 Lateral clearance total 0.30−0.50
* Pay attention to measuring point!
For measuring clearances 1 the crank must be in B.D.C.
2010
learance Table
op and Bottom End Bearings to Connecting Rod
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