Disc Brake Rotor Check - Mitsubishi Electric Lancer Evolution-VII Workshop Manual

Front
Pins

DISC BRAKE ROTOR CHECK

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
Scratches, rust, saturated lining materials
and wear
Run-out or drift
Change in thickness (parallelism)
Inset or warping (flatness)
BASIC BRAKE SYSTEM -
Rear
Cross
spring
Remarks
If the vehicle is not driven for a certain period, the sections of
D
the discs that are not in contact with lining will become rusty, causing
noise and shuddering.
If grooves resulting from excessive disc wear and scratches are
D
not removed prior to installing a new pad assembly, there will
momentarily be inappropriate contact between the disc and the
lining (pad).
Excessive run-out or drift of the discs will increase the pedal depression
resistance due to piston knock-back.
If the thickness of the disc changes, this will cause pedal pulsation,
shuddering and surging.
Overheating and improper handling while servicing will cause inset or
warping.
On-vehicle Service
(5) Apply repair kit grease to the portions of the pads
indicated on the left. At this time, make sure that
the grease will not be applied to any other surfaces.
(6) Mount the pads to the caliper so that its side with
the wear indicator is on the outside of the vehicle.
With the rear pads, ensure that the arrow on the
pad faces in the same direction as the brake disc
turns when the vehicle moves forward.
(7) Holding the cross spring with one hand, fit pins in
the caliper.
(8) Using a spring balance, measure the turning sliding
resistance of the hub in the forward direction.
(9) Find the brake disc drag force [the difference in
measurements taken in step(3) and in step(8)].
Standard value: 69 N or less
35A-13