1987 MAZDA 626 brake fluid

1 1 FRONT DISC BRAKE
86U11X-075
76G11X-081
86U11X-077
Inspection Note
Check the following and replace any faulty parts.
1. Cylinder and piston for wear or rust
2. Caliper body for damage or cracks
3. Boot for damage or poor sealing
Assembly Note
Application of grease
Coat the following parts with the grease supplied in
the seal kit.
1. Piston seal
2. Dust seal
3. Guide pin
4. Guide pin boot
5. Bushing
Piston
Coat the piston and the cylinder with brake fluid; then
insert the piston straight into the cylinder.
86U11X-078
11—44

1 1 FRONT DISC BRAKE
INSTALLATION
1. Install in the reverse order of removal.
2. Tighten all nuts and bolts to the specified torque, referring to torque specifications.
3. After installation:
(1) Add brake fluid and bleed air. (Refer to page 11—9.)
(2) Depress the brake pedal a few times and check that the front brakes do not drag excessively
while the wheels are being rotated.
Note
Refer to page 11—40 for pad installation.
Torque specifications
76G11X-047
11—46

REAR DISC BRAKE 1 1
REMOVAL
1. Loosen the wheel lug nuts.
2. Release the parking brakes.
3. Jack up the rear of the vehicle and support it with safety stands.
4. Remove the wheels.
5. Remove in the sequence shown in the figure.
Warning Asbestos dust is a health hazard. Do not blow away brake dust with compressed air.
Caution
Brake fluid will damage painted surfaces. If it does get on a painted surface, wipe it off
immediately.
76G11X-084
1. Parking brake cable
2. Flexible hose
3. Caliper assembly
4. V-spring
5. Pad and shim
6. Guide plate
7. Mounting support
8. Disc plate
(Refer to section 9)
11—49

REAR DISC BRAKE 1 1
INSTALLATION
1. Install in the reverse order of removal, referring to installation note for the specially marked parts.
2. Tighten all nuts and bolts to the specified torque, referring to torque specifications.
3. After installation:
(1) Add brake fluid and bleed air. (Refer to page 11—9.)
(2) Adjust the parking brake lever stroke. (Refer to page 11 —65.)
(3) Depress the brake pedal a few times and check that the rear brakes do not drag excessively
while the wheels are being rotated.
Note
Refer to page 11—47 for pad installation.
Torque specifications
1. Parking brake cable
Installation Note
Parking brake cable
Connect the parking brake cable end onto the oper-
ating lever; then fix it to the bracket by the locknut.
Caution
There must be no clearance between the ca-
ble end and the operating lever.
86U11X-107
11-55

1 1 REAR DRUM BRAKE
Cleaning of drum brake assembly
Use a vacuum cleaner or equivalent to clean the
brake assembly
Warning
Asbestos dust is a health hazard. When clean-
ing the brake assembly, do not use compressed
air or a brush.
86U11X-112
Brake pipe
Disconnect the brake pipe with the SST.
Caution
Brake fluid will damage painted surfaces. If it
does get on a painted surface, wipe it off im-
mediately.
86U11X-113
11-58

1 1 REAR DRUM BRAKE
86U11X-116
86U11X-117
76G11X-049
Assembly Note
Before assembly, apply brake fluid to the following
parts:
1. Piston cup
2. Cylinder inner wall
3. Piston
INSPECTION
Check the following and repair or replace any faulty
parts.
1. Scratches, uneven or abnormal wear inside drum
Note Repair by sanding if the problem is minor.
2. Drum inner diameter
mm (in)

Standard Maximum
(a) 200.0 (7.87) 201.5 (7.93)
(b) 228.6 (9.00) 230.1 (9.06)
(a): 13-inch wheel
in
General LHD and RHD models (b): Except 13-inch wheel
in
General LHD and RHD models

3. Peeling, cracking, or extremely uneven wear of
lining
4. Lining wear
Thickness: 1.0 mm (0.04 in) min.
Caution
When replacing the shoe assembly, replace
the left and right shoes at the same time as
a set.
86U11X-119
11-60

REAR DRUM BRAKE 1 1
5. Fit of drum and lining
(1) Apply chalk to the inside of the drum.
(2) Rub the shoe against the drum.
(3) Check lining to drum contact.
(4) After checking, remove chalk.
2. Tighten all nuts and bolts to the specified torque, referring to torque specifications.
3. After installation:
(1) Add brake fluid and bleed air. (Refer to page 11—9.)
(2) Adjust the parking brake lever stroke. (Refer page to 11—65.)
(3) Depress the brake pedal a few times and check that the rear brakes do not drag while the wheels
are being rotated.
Torque specification
86U11X-120
INSTALLATION
1. Install in the reverse order of removal.
76G11X-050
11—61

1 1 ANTI-LOCK BRAKE SYSTEM (ABS)
HYDRAULIC UNIT FLUID
Inspection of Level
1. Run the engine for 10 seconds to let the pump mo-
tor build pressure in the accumulator; then stop the
engine.
2. Check that the fluid level is between the Max and
Min lines of the reservoir.
3. If the level is lower than the Min line and leakage
from cap is not found, replace the hydraulic unit
assembly.
86U11X-187
76G11X-061
Replacement
1. Remove the reservoir cap and retainer.
2. Use a suction pump and a soft vinyl hose to suck
fluid from the reservoir.
Caution
a) A hard hose may damage the filter in the
reservoir.
b)Only the amount of fluid shown can be re-
moved from the reservoir.
3. Fill the reservoir with the specified type and amount
of brake fluid.
Caution
a) Do not allow any foreign material to enter
the reservoir.
b) Do not soak the upper filter with brake flu-
id. Otherwise, pouring fluid may be difficult.
Fluid: DOT-3 or DOT-4 or SAE J1703
4. Check the fluid level as described above.
HYDRAULIC UNIT
Warning
The accumulator contains high-pressure gas;
do not attempt to disassemble it or subject it
to hard shocks or high heat.
When the hydraulic unit is scrapped, the high-
pressure gas must be released. Turn the
screw on the accumulator bottom one full turn
only and allow the gas to escape gradually.
76G11X-097
11—94