Checking, Removing and Installing Swing Arms(Cam follower Levers) -MAN B&W 58/64 Diesel Engine
Tools Required
- Torque Wrench
- Screwdriver bit
- Adapter
- Circlip pliers
SEQUENCE OF OPERATION 1: Checking
Starting Position
Covers of cam shaft shell been removed.
- Check that fillister head have been tightened to the specified torque loading.
- Check running surfaces of all rollers for damage.
- Switch on lube oil pump and check that all lubricating points are adequately supplied with oil.
scratch in roller |
scratch in cam shaft |
SEQUENCE OF OPERATION 2: Removal o swing arms for inlet and exhaust valves
Starting Position
Cam shaft shells, lube oil lines and push rods have been removed, and the relevant fuel oil pumps turned to TDC.
- In order to remove a shaft with swing arms, first of all the adjacent short shafts together with swing arms must be removed in accordance with work card.
- Remove the fillister head screws and take off shaft complete with swing arms and bearing brackets.
- Pull the bearing brackets, spacer tube and butting disk off from the shaft, for doing so, remove circlips at the fixed bearing.
- Check clearance between bushes of swing arms and shaft.
- Clean and check bearing points, contact surface on thrust piece, and the running surface of the roller. Check O ring at the shaft bearing points. Clean all drilled oil passage in shaft and swing arms.
SEQUENCE OF OPERATION 3: Installing of swing arm
The installation takes place in reverse order to that of removal. During installation, the following points must be sbserved:
- Take care not to damage the O rings in the shaft when fitting the bearing bracket.
- The fillister head screw are to be tightened to the specified torque loading.
Note: When mounting the bearing, it is the upper fillister head screws which are to be tightened first.