Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Service manual — part 1190
POWER-ASSISTED BRAKE SYSTEM
5C–27
Exterior Components
Exterior Components and Associated Parts
331R200006
EndOFCallout
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
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