31 21 180 Replacing Bearing (Wheel Bearing) For Front Wheel
31 21 180 Replacing bearing (wheel bearing) for front wheelSpecial tools required:
Important!
Bearing can not be dismantled.
Do not wash out bearing.
Remove front wheel.
Important!
Expand anti-twist lock sufficiently to avoid damaging thread when releasing collar nut.
Release collar nut (1), press brake pedal to floor for this purpose.
Tightening torque 31 21 2AZ.
Installation Note:
Replace collar nut, oil collar nut/wheel bearing contact surface only and tighten down.
No oil permitted on thread of shaft journal or collar nut.
Secure collar nut by positive peening on flat areas of output shaft.
Remove brake disc.
Release screw (1) and pull pulse sensor out of bore.
Tightening torque 34 51 3AZ.
Installation Note:
Clean bore for pulse sensor and lubricate with Staburags(R) NBU 12/K lubricating grease.
Release screws (2) and remove holder from swivel bearing.
Note:
Output shaft has been removed only for the purpose of creating the picture.
Release bolts (1) and remove wheel bearing.
Tightening torque 31 21 1AZ.
Installation Note:
Replace screws.
Screw on special tools 33 2 203, 33 2 207 and 33 2 201 with three wheel bolts to drive flange.
Pull wheel bearing (1) off output shaft, gripping basic body 33 2 201 with special tools 33 2 202 and 33 5 070.
Important!
Do not damage inner race (1) of wheel bearing.
Installation Note:
Keep contact surface of swivel bearing and wheel bearing clean and free from oil and grease.
Installation Note:
Important!
No oil permitted on shaft journal thread!
Lightly oil spline teeth of output shaft.
Screw special tool 33 2 118 onto output shaft.
Mount special tool 33 2 201 with three wheel bolts to drive flange.
Draw in wheel bearing (1) with special tool 33 2 208 up to stop, gripping basic body 33 2 201 with special tools 33 2 202 and 33 5 070.
