Inner Constant Velocity (CV) Joint, Removing, Checking and Installing

Inner Constant Velocity (CV) joint, removing, checking and installing
In order to replace the grease in case of strong soiling, joint must be disassembled and if the journal surfaces and balls must be checked for wear and damage.

Removing





- Swing ball hub and ball cage.
- Press joint piece out in direction of arrow.
- Press balls out from cage.

Note: Ball hub and joint piece are paired. Do not interchange.





- Flip out ball hub from ball cage via the running path of the ball - arrows -.
- Check joint piece, ball hub, ball cage and balls for small broken off depressions (pitting build-up) and chafing.
- Excessive circumferential backlash in joint makes itself noticed via tip-in shock. Joint must be replaced in such cases. Flattening and running marks of the balls are no reason to replace the joint.

Installing





- Insert ball hub into the ball cage via the two chamfers. The installation position is at random. Press balls into the cage.
- Insert hub with cage and balls upright into joint piece.





- When inserting, make sure that in each case the wide gap - a - at joint piece contacts narrow gap - b - at hub after swinging in.
- Chamfer on inner diameter of ball hub (splining) must face large diameter of joint piece.





- Swing in ball hub, to do so swing out hub far enough from cage - arrows - so that the balls have the distance of the running paths.





- Swing in hub with balls by pressing forcefully onto cage - arrow -.

Check constant velocity joint for function:
Constant velocity joint is properly assembled, if the ball hub can be slid back and forth by hand over the whole compensation length.