Outer Constant Velocity Joint

Outer constant velocity joint, checking
The joint should be dismantled to replace dirty grease or for checking the balls and ball tracks for wear and damage.

Removing





- Before dismantling, mark position of the ball hub in relation to the ball cage and housing with an electric scriber or oil stone (arrow).
- Swivel ball hub and ball cage.
- Remove balls one after the other.





- Turn cage until two of rectangular windows (arrow) are aligned with joint housing.
- Lift out cage together with hub.





- Swing one segment of hub into one of rectangular cage windows.
- Tilt hub out of cage.

Notes: The 6 balls of each joint belong to one tolerance group. Check stub axle, hub, cage and balls for indentations (pitting) and signs of seizure. Excessive backlash in joint will be noticed as a knock during load changes. In such cases, the joint must be replaced. Polished areas and ball track marks are not a reason for changing the joint.

Installing
- Press half of the total amount of grease into the joint housing.
- Install cage with hub in the joint housing.

Notes: The cage must be installed with the correct side facing out.

- Press in the balls one after the other from opposite sides; the hub must be fitted in the original position in relation to the cage and joint housing.
- Install new circlip on shaft.
- Distribute the remaining grease in the boot.