Measuring Brake Disc Lateral Movement [TTT]
TTT. Measuring brake disc lateral movementTTTA. Measuring lateral run-out on brake disc
Special tools: 115 8147, 999 5418, 999 5442, 999 5507
[TTTA1]
Preparations
- Get measurement tool set 999 5418, 999 5418.
Front:Remove brake caliper from caliper mounting as per [MMMA1-MMMA4] Service and Repair
Rear:Remove brake caliper from rear axle, see [RRRA4], then continue as below. Service and Repair
[TTTA2]
Installing clamp ring
Hubs with four wheel bolts: Install clamp ring 999 5442 on hub with wheel nuts.
Hubs with five wheel bolts:
- Install clamp ring 999 5419 from measurement tool set 999 5418 on hub with wheel nuts.
- Make sure that contact surfaces on brake disc and clamp ring are clean.
- Tighten bolts hand tight, then tighten across to 110 Nm (80 ft lb). When tightening with airgun, use torque socket 115 8147.
[TTTA3]
Installing test equipment
Install measurement tool set bracket. Front: Attach bracket to caliper mounting with mounting bolts from bolt set 999 5507
Rear: Attach bracket to brake caliper mounting lugs with bolts from measurement tool set 999 5418. Brake disc maximum lateral run-out must not exceed 0.040 mm (0.0016") (brake disc front) or 0.080 mm (0.0031") (brake disc rear).
- Remove test equipment.
- If brake disc maximum lateral run-out is out of limits, it must be turned, if you have a turning tool available, or be replaced. Replacement procedure as per QQQA. Brake disc front, replacement or RRRA. Brake disc rear, replacement. Service and Repair
Note! Illustration shows testing front.
[TTTA4]
Finishing
Go to Rear Wheel Brake Linings, Replacement [NNNA7 - NNNA12]. Service and Repair