Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 1190

POWER-ASSISTED BRAKE SYSTEM

5C–27

Exterior Components

Exterior Components and Associated Parts

331R200006

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Removal

1. Remove master cylinder. Refer to Master Cylinder

in this section.

2. Remove vacuum booster. Refer to Vacuum Booster

in this section.

3. Remove 2 gaskets and spacer.

4. Remove retainer, plate and seal assembly.

331RS003

Legend

(1) 2 Gaskets and Spacer
(2) Vacuum Booster

(3) Retainer
(4) Plate and Seal Assembly
(5) Master Cylinder

5C–28

POWER-ASSISTED BRAKE SYSTEM

Inspection and Repair

Visual Check

Make necessary parts replacement if cuts, nicks,
excessive wear, or other abnormal conditions are found
through inspection.

NOTE:  The parts listed below must be replaced with
new ones whenever the master cylinder is removed.

1. Plate and seal assembly

2. Retainer

Installation

1. Install plate and seal assembly.

2. Install retainer.

3. Install vacuum booster, refer to Vacuum Booster in

this section.

4. Install master cylinder, refer to Master Cylinder in

this section and after installation, perform brake
pedal check and adjustment. Refer to Brake Pedal
in this section.

Vacuum Booster Overhaul

Vacuum Booster

The vacuum booster cannot be disassembled for repair.
Replace a defective vacuum booster with a new one.

POWER-ASSISTED BRAKE SYSTEM

5C–29

Main Data and Specifications

General Specifications

Torque Specifications

E05R200004

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)

5C–30

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

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Legend

(1) Pin Bolt
(2) Caliper Assembly

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