Outer Constant Velocity (CV) Joint, Checking

Outer Constant Velocity (CV) joint, checking
The joint should be disassembled to replace dirty grease or for checking the balls and ball tracks for wear and damage.

Removing





- Before disassembling, mark position of ball hub in relation to ball cage and joint body with an electric scribe or oil stone (arrow).
- Swing ball hub and ball cage.
- Remove balls one after the other.





- Turn cage until two cage windows - arrow - are level with joint body.
- Lift out cage with hub.





- Swing a segment of the hub into one of the cage windows.
- Pivot hub out of cage.

Note: The 6 balls in each joint belong to one tolerance group. Check stub axle, hub, cage and balls for pitting and signs of seizure. Excessive backlash in the joint will cause knocking or jolts under load change; in such cases the joint must be replaced. Polished areas and ball track marks are not a reason for changing the joint.

Installing
- Pack half the total quantity of grease into the joint body.
- Insert cage with hub into joint body.

Note: The cage must be inserted in the correct position (i.e. sides facing in same direction as original position).

- Press in balls one after the other from opposite sides, taking care to re-establish the original position of the hub relative to the cage and the joint body.
- Install new circlip in shaft.
- Distribute remaining grease in boot.