Checking, Removing and Installing Swing Arms(Cam follower Levers)


Tools Required
  1. Torque Wrench
  2. Screwdriver bit
  3. Adapter
  4. Circlip pliers
SEQUENCE OF OPERATION 1: Checking

Starting Position
Covers of cam shaft shell been removed.
  1. Check that fillister head have been tightened to the specified torque loading.
  2. Check running surfaces of all rollers for damage.
  3. 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.
  1. 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.
  2. Remove the fillister head screws and take off shaft complete with swing arms and bearing brackets.
  3. Pull the bearing brackets, spacer tube and butting disk off from the shaft, for doing so, remove circlips at the fixed bearing.
  4. Check clearance between bushes of swing arms and shaft.
  5. 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
push rod operation by swing arm

swing arm installation


The installation takes place in reverse order to that of removal. During installation, the following points must be sbserved:
  1. Take care not to damage the O rings in the shaft when fitting the bearing bracket.
  2. 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. 



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