Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Service manual — part 1193
POWER-ASSISTED BRAKE SYSTEM
5C–39
2. Remove dust boot: piston.
3. Remove piston seal.
4. Remove bleeder with cap.
5. Remove caliper body.
Inspection and Repair
Make necessary parts replacement, if wear, damage,
corrosion or any other abnormal conditions are found
through inspection.
Check the following parts:
• Rotor
• Cylinder body
• Cylinder bore
• Piston
• Guide pin, lock pin
• Support bracket
NOTE: The piston seal, boot ring and dust boot are to
be replaced each time the caliper is overhauled.
Discard these used rubber parts and replace them with
new ones.
Reassembly
1. Install caliper body.
2. Install bleeder with cap and tighten the cap to the
specified torque.
Torque: 8 N·m (69 lb in)
3. Apply special rubber grease to the piston seal and
cylinder wall, then insert the piston seal into the
cylinder. The special rubber grease is included in
the repair kit.
302R200013
4. When inserting the piston into the cylinder, use
finger pressure only and do not use a mallet or other
impact tool, since damage to the cylinder wall or
piston seal can result.
Install piston.
302R200015
5. Apply special grease (approximately 1 g) to the
piston and attach the dust boot to the piston and
caliper. Insert the dust boot ring into the dust boot.
6. Install guide bolt and lock bolt dust boot.
7. Install the dust boot on the support bracket after
applying special grease (approximately 1 g) onto
the dust boot inner surface. Apply special grease
onto the lock pin and guide pin setting hole of the
support bracket.
302R200022
EndOFCallout
8. Install pin bolt and tighten the bolt to the specified
torque.
Torque: 45 N·m (33 lb ft)
Legend
(1) Guide Pin
(2) Lock Pin
(3) Pin Boot
5C–40
POWER-ASSISTED BRAKE SYSTEM
Main Data and Specifications
General Specifications
Torque Specifications
E05R200008
Type
Floating, pin slide
Pad dimension
48.7 cm
(7.55 in
)
Adjusting method
Self–adjusting
Piston diameter
45.4 mm (1.79 in)
´2
Disc type
Ventilated
Disc thickness
26 mm (1.02 in)
Disc effective diameter
242 mm (9.53 in)
POWER-ASSISTED BRAKE SYSTEM
5C–41
Rear Disc Brake Pads (4
´4 Model)
Brake Pads Inspection
Check the outer pads 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 1.0 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)
302RW016
Brake Pads and Associated Parts
306RW001
EndOFCallout
Legend
(1) Caliper Assembly
(2) Clip
(3) Lock Bolt
(4) Pad Assembly
5C–42
POWER-ASSISTED BRAKE SYSTEM
Removal
NOTE: If a squealing noise occurs from the rear brake
while driving, check the pad wear indicator plate. If the
indicator plate contacts the rotor, the disc pad assembly
should be replaced.
• Draw out two–thirds of the brake fluid from the
reservoir.
• Raise the vehicle and support it with suitable safety
stands.
1. Remove wheel and tire assembly, referring to
Wheels and Tires System in Section 3E.
2. Remove lock bolt (1)
306RW002
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 (2).
306RW003
2. Apply special grease (approximately 0.2 g) to both
contacting surfaces of the inner shims. Wipe off
extruded grease after installing. Install pad
assembly with shim.
306RW004
EndOFCallout
Legend
(3) Inner Shim
(4) Wear Indicator
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