Meritor Automobile Accessories MM-9902 Manuel D’Utilisation

Section 3
Disassembly

Remove the Linings

WARNING

To prevent serious eye injury, always wear safe

eye protection when you perform vehicle

maintenance or service.

Do not work under a vehicle supported only by

jacks. Jacks can slip or fall over and cause

serious personal injury. Support the vehicle with

safety stands.
1. Block the wheels of the vehicle to prevent

the vehicle from moving.

2. If necessary, raise the vehicle. Support the

vehicle with safety stands.

3. Remove the adjuster plug and washer from

the chamber bracket. Figure 3.1.

Figure 3.1

CAUTION

Use an Allen wrench to manually adjust and

de-adjust the brakes. Do not use an air gun to

adjust or de-adjust the brakes. Damage to

components can result.

Stop turning the Allen wrench when you feel

resistance. Do not continue to turn the Allen

wrench beyond the resistance point. Damage to

components can result.
NOTE: When you de-adjust the brake (increase

disc clearance), you will hear a "'clicking" sound

and feel a "pulsing" sensation during the

adjustment.
4. Use a 6 mm Allen wrench to de-adjust the

brake as specified on the brake caliper and in

Table A below. Stop turning the Allen

wrench when you feel resistance, which

indicates that the adjuster pistons are fully

retracted. Figure 3.2.

•

To ensure that the automatic adjustment

will occur: Adjust the brake an additional

¼-turn after you reach the resistance

point.

WASHER-ADJUSTER PLUG

ADJUSTER PLUG

Figure 3.2

ALLEN

WRENCH

ALLEN

WRENCH

Table A: Increasing and Decreasing Disc Clearance

Caliper Identification   Increase Disc Clearance   Decrease Disc Clearance
LH Air Release Brake Assembly   Counterclockwise   Clockwise
RH Air Release Brake Assembly   Clockwise   Counterclockwise
LH Hydraulic Release Brake Assembly

Counterclockwise Clockwise

RH Hydraulic Release Brake Assembly Clockwise Counterclockwise