Front Drive Axle With 108 mm Dia. Inner Constant Velocity Joint

Inner constant velocity joint, checking
In order to replace the grease due to contamination or if the ball tracks must be checked for wear and damage, the joint must be disassembled.

Disassembling

Note:
^ Ball hub and joint are paired and must be marked before disassembling. Make sure the balls run in the same tracks after assembly.





- Swivel ball hub and ball cage and pull joint body out in direction of - arrow -.





- Press balls out of cage.
- Align ball hub with cage as shown - arrows - and pivot hub out of cage.

Checking
- Check joint, ball hub, ball cage and balls for pitting and signs of seizure.

Note:
^ 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 replacing the joint.

Assembling





- Insert ball hub into cage via the two chamfers. No specific installation position is required. Press balls into cage.
- Insert hub with cage and balls at a right angle to the joint.

Note:





^ When inserting, make sure that the wide gap - a - on the joint body is aligned with the narrow gap - b - on the hub after swivelling in.





- Swivel hub into joint body; at the same time the hub must be swiveled out of the cage arrows far enough to allow the balls to fit into the ball tracks.





- Swivel in the hub with balls by applying firm pressure on the cage - arrow -.

Checking function of constant velocity joint:
The constant velocity joint has been correctly assembled if the ball hub can be moved by hand back and forth over its entire axial adjustment range.