Isuzu Rodeo UE. Manual - part 117

5C–29

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. Check the following parts:

f

Yoke clevis

f

Valve body guard

f

Silencer

f

Filter plate and seal assembly

Installation

1. Install plate and seal assembly.
2. Install retainer.

3. Install 2 gaskets and spacer.
4. Install filter.
5. Install silencer.
6. Install valve body guard.
7. Install retainer.
8. Install lock nut and yoke clevis and tighten to the

specified torque.

Torque: 20 N·m (15 lb ft)

9. Install vacuum booster, refer to “Vacuum Booster” in

this section.

10. 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.

5C–30 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

E05RW015

5C–31

POWER–ASSISTED BRAKE SYSTEM

Special Tools

ILLUSTRATION

TOOL NO.

TOOL NAME

J-39216

Push Rod Gauge

J-23738-A

Vacuum Pump

J-39241

Push Rod Support

5C–32 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.
The disc pads have a wear indicator that makes a noise
when the pad wears to where the replacement is required.

Minimum limit (1): 1.0 mm (0.039 in) 

302RS002

Front Disc Brake Pads and Associated Parts

302RW003

Legend

(1) Lock Bolt
(2) Caliper Assembly

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