Brake Disc Run-Out Check; Brake Disc Run-Out Correction - Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement

BASIC BRAKE SYSTEMS –
Chalk mark
On-vehicle Service

BRAKE DISC RUN-OUT CHECK

1. Remove the caliper support; then raise the caliper
assembly upward and secure by using wire.
2. Inspect the disc surface for grooves, cracks and rust. Clean
the disc thoroughly and remove all rust.
3. Place a dial gauge approximately 5 mm from the outer
circumference of the brake disc, and measure the run-out
of the disc.
Limit: 0.06 mm or less
NOTE
Tighten the nuts in order to secure the disc to the hub.

BRAKE DISC RUN-OUT CORRECTION

1. If the run-out of the brake disc is equivalent to or exceeds
the limit specification, change the phase of the disc and
hub, and then measure the run-out again.
(1) Before removing the brake disc, chalk both sides of
the wheel stud on the side at which run-out is greatest.
(2) Remove the brake disc, and then place a dial gauge
as shown in the illustration; then move the hub in
the axial direction and measure the play.
Limit: 0.05 mm
If the play is equivalent to or exceeds the limit,
disassemble the hub knuckle and check each part.
(3) If the play does not exceed the limit specification,
install the brake disc at a position 180 away from
the chalk mark, and then check the run-out of the
brake disc once again.
2. If the run-out cannot be corrected by changing the phase
of the brake disc, replace the disc or turn rotor with on
the car type brake lathe ("MAD, DL-8700PF or equivalent).
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