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Disassembling
– Mark position of ball hub to ball cage and to housing before
disassembling, using electro-writer or grindstone.
– Swivel the ball hub and ball cage.
– Remove the balls one after the other.
– Lift out cage with hub.
– Swing segment of hub into window of cage.
– Fold hub out from cage.
The balls of each joint belong to one tolerance group. Check stub
axle, hub, cage and balls for small depressions (pitting build-up)
and chafing. Excessive circumferential backlash in joint makes
itself noticed via tip-in shock, in such cases joint should be re‐
placed. Flattening and running marks of balls are no reason to
replace joint.
Assembling
– Insert cage with hub into joint body.
– Note shoulder on inner diameter of ball hub. This must point
to drive axle when installing.
– Press in opposing balls in sequence, during this, previous po‐
sition of ball hub to ball cage and to joint body must be
established again.
– Press half of the grease into the joint body.
– Distribute remaining grease in cover.
– Install inner CV joint, refer to
⇒ “7.6 Drive Axle, Bolted Inner Joint, Servicing”, page 192 .
7.8 Drive Axle, Bolted Inner Joint Overview
Audi Q7 2007 ➤
Suspension, Wheels, Steering - Edition 01.2014
7. Drive Axle 193