Inner Constant Velocity Joint, Checking

Inner constant velocity joint, checking
When checking the balls and ball tracks for wear and damage the joint should be disassembled to replace dirty grease.

Removing





- Swivel ball hub and ball cage.
- Press out ball joint housing in direction of arrow.
- Press balls out of cage.

Note:
^ The bag hub and joint are paired. Must not be interchanged.





- Tilt ball hub out of ball cage over ball track - arrow -.
- Check joint housing, ball hub, ball cage and balls for indentations (pitting) and signs of seizure.

Note:
^ 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 replacing joint.

Installing





- Insert ball hub over both chamfers into ball cage. The hub can be installed in any position. Press balls into cage.
- Insert hub with cage and balls at right angle to the joint.





^ When inserting make sure that the wide space - a - on joint housing is aligned with narrow space - b - on hub after swiveling in.
^ Chamfer on inner diameter of ball hub (splines) must face larger diameter of joint housing.





- Install ball hub, whereby the hub must be swiveled out of cage - arrows - far enough to allow the balls to fit into ball tracks.





- Press cage firmly - arrow - until hub swings fully in position.

Check operation of constant velocity joint:
The CV joint is correctly assembled when the ball hub can be moved by hand backward and forward over its entire axial movement range.