BASIC BRAKE SYSTEM ± On-vehicle Service
35A-13
BRAKE DISC RUN-OUT CHECK AND
CORRECTION
1. Remove the brake assembly, and then hold it with wire.
2. Place a dial gauge approximately 5 mm from the outer
circumference of the brake disc, and measure the run-out
of the disc.
Limit: <Front> 0.06 mm or less,
<Rear> 0.08 mm or less
3. If the brake disc run-out exceeds the limit, correct it as
follows:
(1) Chalk phase marks on the wheel stud and the brake
disc, which run-out is excessive as shown.
(2) Remove the brake disc. Then place a dial gauge as
shown, and measure the end play by pushing and
pulling the wheel hub.
Limit: <Front> 0.2 mm, <Rear> 0.025 mm
(3) If the end play exceeds the limit, disassemble the
hub and knuckle assembly to check each part.
(4) If the end play does not exceed the limit, dephase
the brake disc and secure it. Then recheck the brake
disc run-out.
4. If the run-out cannot be corrected by changing the phase
of the brake disc, replace the brake disc or grind it with
the on-the-car type brake lathe (ºMAD, DL-8700PFº or
equivalent).
Chalk marks
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