Skoda Workshop Service and Repair Manuals

Removing and installing the wheel hub with wheel bearing - drum brake Special tools and workshop equipment required t  Drive bushing -MP3-427 (40-21)- t  Assembly device -MP5-403 (3420)- t  Hub cap extractor -MP5-404 (VW 637/2)- t  Puller Kukko -20/2- t  Puller Kukko -204/1- Removing: –  Remove rear wheel. –  Resetting brake.

–  Use a screwdriver to push the wedge up (self-adjustment of the handbrake) through a hole for the wheel screws in the brake drum (resetting brake) → Chapter. –  Unscrew the securing screw of the drum brake and remove drum brake.

–  Release cap from its position by gently tapping the claw of the hub cap extractor.

–  Remove cap. –  Release twelve-point nut.

–  Remove wheel hub with wheel bearing from axle stud. Use puller (commercially available) e.g. Kukko -20/2-.   Note t  If the inner ring of the bearing remains on the axle stud after pulling off the wheel hub with wheel bearing, the old inner ring of the bearing must be pulled off before pressing on the new wheel hub with wheel bearing. t  Do not damage the ABS wheel speed sensor when pulling off the inner ring of the bearing. t  The inner ring of the bearing is a component part of the new wheel hub with wheel bearing and is therefore not pressed on individually.

–  Remove inner ring of the bearing from axle stud. Use e.g. puller Kukko -204/1-.   Note Do not damage the ABS wheel speed sensor when pulling off the inner ring of the bearing. Installing:   Note t  Replace wheel hub with wheel bearing completely after each removal! t  Do not tilt the wheel hub with wheel bearing on the axle stud. t  Use new twelve-point nuts. t  Replace caps after each installation (damaged caps allow moisture to penetrate). –  Fit the new wheel hub with wheel bearing as far as possible onto the axle stud.

–  Screw assembly device -MP5-403 (3420)- onto the axle stud and pull wheel hub with wheel bearing up to the stop.

–  Unscrew assembly device -MP5-403 (3420)- and tighten wheel hub with new twelve-point nut. –  Install brake drum and secure with screw.

–  Drive in cap. –  Attach the wheel.

Tightening torques:

Twelve-point nut to axle stud t  Use new nut!	70 Nm +40°
Securing screw for brake drum to wheel hub	4 Nm
Wheel bolts	→ Chapter