Mitsubishi MOTORS L200 1996, Руководство по ремонту

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BASIC BRAKE SYSTEM –
On-vehicle Service
35A-16
FRONT DISC BRAKE ROTOR CHECK
35100270061
CAUTION
When servicing disc brakes, it is necessary to exercise caution to keep the disc brakes within
the allowable service values in order to maintain normal brake operation.
Before re-finishing or re-processing the brake disc surface, the following conditions should be checked.
Inspection items Remarks
Scratches, rust, saturated lining materials
and wear
D
If the vehicle is not driven for a certain period, the sections of
the discs that are not in contact with lining will become rusty, causing
noise and shuddering.
D
If grooves resulting from excessive disc wear and scratches are
not removed prior to installing a new pad assembly, there will
momentarily be inappropriate contact between the disc and the
lining (pad).
Run-out or drift Excessive run-out or drift of the discs will increase the pedal depression
resistance due to piston knock-back.
Change in thickness (parallelism) If the thickness of the disc changes, this will cause pedal pulsation,
shuddering and surging.
Inset or warping (flatness) Overheating and improper handling while servicing will cause inset or
warping.
RUN-OUT CHECK AND CORRECTION
35100940016
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:
<2WD> 0.08 mm
<4WD> 0.06 mm
4. 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) For 4WD, place a dial gauge as show in the illustration,
and then move the hub in the axial direction and
measure the play.
Standard value: 0.05 mm
If the play is equal to or exceeds the standard value,
adjust the wheel bearing preload. (Refer to GROUP
26 – Front Hub Assembly <4WD>.)
Chalk mark