Inner CV Joint, Checking

Inner CV Joint, Checking

Removing

The joint must be disassembled for the following work:

• Replace the grease if it is very dirty.

• For checking the contact surfaces for wear.

• For checking the bearings for wear.

- Swing ball hub and ball cage.






- Press out ball joint housing in - direction of arrow -.

- Press balls out of cage.

• Ball hub and joint piece are paired. Do not interchange.

- Flip out ball hub from ball cage via running path of 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 balls are no reason to replace joint.

Installing

- Insert ball hub into ball cage via two chamfers. The installation position is at random. Press balls into cage.






Ball hub has 2 different distances between ball tracks, a larger and a smaller.

- 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 (splines) must face large diameter of joint piece.

- Pay attention to the bevel on the inner diameter of the ball hub. It must be visible.

- 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 -.






CV Joint, Checking for Function

CV joint is properly assembled, if ball hub can be slid back and forth by hand over whole compensation length.