WÄRTSILÄ RT-flex50-D, Maintenance Manual

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Maintenance
3303−1/A1
RT-flex50-D
Wärtsilä Switzerland Ltd
1/ 5
Tools: Key to Illustrations:
1 Feeler gauge 94122 1 Stud of top end bearing 9 Cylinder
2 Pre-tensioning jacks 94314 2 Nut
2 Distance bushes 94314a 3 Top end bearing
2 Pre-tensioning jacks 94315 4 Stud of bottom end bearing
1 Connection block 94934 5 Nut BN Limiting groove
1 Hydr. distributor 94934a 6 Bottom end bearing KO Slot
3 HP hoses 94935 7 Vent screw RS Round bar
1 Hydraulic unit 94942 8 Piston SA Gap
Overview
1. General 1/5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. Loosening the stud of bottom end bearing 2/5 . . . . . . . . . . . . . . .
3. Tensioning the stud of bottom end bearing 3/5 . . . . . . . . . . . . . .
4. Loosening the stud of top end bearing 4/5 . . . . . . . . . . . . . . . . . .
5. Tensioning the stud of top end bearing 5/5 . . . . . . . . . . . . . . . . . .
1. General
Remark: We recommend to follow the instructions
9403−4 referring to the application of hydraulic pre-
tensioning jacks to screwed connections.
Check that nuts 2 or 5 turn freely on the threads.
Attention! Never turn the crankshaft (with the turn-
ing gear) as long as the pre-tensioning jacks are
mounted on the connecting rod studs!
CHECK
A
1
2
3
4
5
6
013.378/05
701.013.378
Connecting Rod
Loosening and Tensioning the Connecting Rod Studs
2010