Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 193

5C–89

POWER–ASSISTED BRAKE SYSTEM

Main Data and Specifications

General Specifications

Vacuum booster diaphragm diameter (Front)

205 mm (8.07 in)

Vacuum booster diaphragm diameter (Rear)

230 mm (9.06 in)

Push rod stroke

More than 32.0 mm (1.26 in)

Plunger diameter

10.25 mm (0.40 in)

Push rod diameter

27.4 mm (1.08 in)

Torque Specifications

E05R200004

5C–90 POWER–ASSISTED BRAKE SYSTEM

Front Disc Brake Pads

Front Disc Brake Pads Inspection

Check the outer pad by looking at each caliper from
above. Check the thickness on the inner pad by looking
down through the inspection hole in the top of the caliper.
Whenever the pad is worn to about the thickness of the
pad base, the pad should be removed for further
measurements. The pad should be replaced anytime the
pad thickness (1) is worn to within 1.00 mm (0.039 in) of
the pad itself.
Wear indicators are installed on disc brake pads, disc
brake pads need replacement when the wear indicator is
heard.

Minimum limit (1): 1.0 mm (0.039 in) 

302RS002

Front Disc Brake Pads and Associated Parts

302R200026

Legend

(1) Pin Bolt
(2) Caliper Assembly

(3) Pad Assembly
(4) Clip
(5) Outer Side

5C–91

POWER–ASSISTED BRAKE SYSTEM

Removal

NOTE: If a squealing noise occurs from the front brake
while driving, check the pad wear indicator plate. If the
indicator plate contacts the rotor, the disc pad assembly
should be replaced.

D

Draw out two–thirds of the brake fluid from the
reservoir.

D

Raise the vehicle and support it with suitable safety
stands.

1. Remove wheel and tire assembly, refer to 

Wheels

and Tires System in Section 3E.

2. Remove pin bolt (1).

302R200028

3. Rotate caliper assembly and support the caliper

assembly so that the brake hose is not stretched or
damaged.

4. Remove pad assembly with shim.
5. Remove Clip.

Installation

1. Install clip.

302R200023

2. Apply special grease (approximately 0.2 g) to both

contacting surfaces of the inner shims (2). Wipe off
extruded grease after installing. Install pad assembly
with shim.

302R200024

Legend

(2) Inner Shim
(3) Wear Indicator
(4) Inner Side

5C–92 POWER–ASSISTED BRAKE SYSTEM

3. Carefyully use adjustable pliers to bottom the piston

into the caliper bore. Do not pull or twist the flexible
hose or damage will occur.
Install caliper assembly.
Set caliper assembly in place.

4. Install lock bolt (5) and tighten the bolt to the specified

torque.

Torque: 45 N·m (33 lb ft)

302R200008

5. Install wheel and tire assembly, refer to 

Wheels and

Tires System in Section 3E.

6. Pump the brake pedal several times to make sure that

the pedal is firm. Check the brake fluid level in the
reservoir after pumping the brakes.