Nissan Note E12. Instruction — part 76
BR-40
< REMOVAL AND INSTALLATION >
REAR DRUM BRAKE
REAR DRUM BRAKE
Exploded View
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Removal and Installation
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WARNING:
Clean any dust from the front brake and rear brake with a vacuum dust collector. Do not blow with
compressed air.
CAUTION:
• Do not depress the brake pedal while removing the brake drum because the pistons may pop out.
1.
Shoe hold pin
2.
Back plate
3.
Plug
4.
Brake shoe
5.
Retainer
6.
Upper spring
7.
Adjuster
8.
Return spring
9.
Brake drum
10. Boot
11. Piston
12.
Piston cup
13. Spring
14. Wheel cylinder
15.
Bleeder valve
16. Cap
1: Apply Syntheso® GLEP1 grease or equivalent.
2: Apply Molyguard GS 2039 grease or equivalent.
: Apply clean brake fluid
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REAR DRUM BRAKE
BR-41
< REMOVAL AND INSTALLATION >
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• Do not drop the removed parts.
• Do not spill or splash brake fluid on the brake drum.
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
REMOVAL
1. Remove the wheel and tire using power tool. Refer to
.
2. Remove the brake drum. Refer to
RAX-6, "Removal and Installation"
.
NOTE:
• Make sure the parking brake is fully released prior to removal of the brake drum.
• The rear wheel hub is part of the brake drum.
3. Remove the retainers (1) by pushing them inward toward the
vehicle and rotating. This will release the shoe hold pins, brake
shoes, each retainer, and adjuster.
CAUTION:
Do not damage the wheel cylinder boots.
4. Disconnect the parking brake cable from operating lever.
CAUTION:
Do not bend the operating lever.
5. Disassemble the brake shoes, each spring, and adjuster.
6. Remove the wheel cylinder using the following procedure:
a. Disconnect the brake tube from the wheel cylinder.
b. Remove the two bolts and wheel cylinder from back plate.
7. Perform inspection after removal. Refer to
INSTALLATION
CAUTION:
• Replace the parts if they have been dropped or sustained an impact.
• Do not damage the wheel cylinder.
• Do not allow foreign matter (e.g. dust) and oils other than brake fluid to enter the reservoir tank.
Installation is in the reverse of removal.
• Check the difference between left and right adjuster.
: Front
• Shorten the length of the adjuster by rotating it.
• For grease type and placement, refer to
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Adjuster
Direction
Left side
Left screw
Right side
Right screw
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BR-42
< REMOVAL AND INSTALLATION >
REAR DRUM BRAKE
• Check drum brake components for proper installation.
• Check the brake shoe linings and brake drum inner surface for
grease. Make sure that grease does not contact the lining material
or drum inner surface.
• Perform the air bleeding after installing a new or rebuilt wheel cyl-
inder. Refer to
BR-12, "Bleeding Brake System"
• Step on the brake pedal several times after installing the brake
drum.
• Perform the inspection after installation. Refer to
.
Disassembly and Assembly
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DISASSEMBLY
1. Remove boots from wheel cylinder. Refer to
2. Remove pistons, piston cups and spring from wheel cylinder.
CAUTION:
Pull the pistons out from the wheel cylinder to prevent the wheel cylinder inner wall from being
damaged.
3. Remove piston cups from pistons.
4. Perform inspection after disassembly. Refer to
BR-42, "Inspection and Adjustment"
.
ASSEMBLY
1. Apply clean brake fluid to the new piston cups (1) and pistons
(3).
2. Apply Syntheso® GLEP1 grease or equivalent to boots (2).
3. Install piston cups and new boots to pistons (3).
CAUTION:
• Do not mistake the direction of pistons.
• Do not reuse piston cups and boots.
4. Apply clean brake fluid to wheel cylinder inner wall, and install
spring and pistons into wheel cylinder.
CAUTION:
Do not damage the wheel cylinder inner wall.
5. Install boots to wheel cylinder. Refer to
6. Perform inspection after assembly. Refer to
BR-42, "Inspection and Adjustment"
.
Inspection and Adjustment
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INSPECTION AFTER REMOVAL
Check the following items and replace if necessary.
• Check the brake shoe lining for excessive wear, damage, and peeling.
• Check each spring for settling, excessive wear, damage, and rust.
• Check the adjuster for smoothness, and check it for excessive wear, damage, and rust.
• Check the back plate for damage, cracks, and deformation.
• Check the wheel cylinder for cracks, damage, and leaks.
• Visually check the brake drum for excessive wear, cracks, and damage.
INSPECTION AFTER DISASSEMBLY
Check the following items and replace if necessary.
• Check the wheel cylinder inner wall for excessive wear, cracks, and damage.
• Check the pistons for excessive wear and damage.
INSPECTION AFTER ASSEMBLY
Check that the pistons move smoothly.
INSPECTION AFTER INSTALLATION
1. Check that the drum brake component parts are installed properly.
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REAR DRUM BRAKE
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2. Rotate the brake drum and check that there is no drag. Perform the following procedure if necessary:
a. Remove the brake shoes. Refer to
BR-40, "Removal and Installation"
b. Push the pistons.
CAUTION:
Push both side of the piston simultaneously.
c. Install the brake shoes. Refer to
BR-40, "Removal and Installation"
3. Inspect and adjust the parking brake. Refer to
PB-4, "Inspection and Adjustment"
4. Check drag of rear drum brake again. If any drag is found, disassemble the wheel cylinder and replace if
necessary. Refer to
BR-42, "Disassembly and Assembly"
5. Perform brake burnishing. Refer to
BR-17, "BRAKE LINING : Brake Burnishing"
.
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