Nissan Versa

 Sedan Service Manual

Brakes » Brake system (BR) » Rear drum brake
Removal and Installation

WARNING: Clean dust from brake drum and shoe assembly with a vacuum dust collector to minimize the hazard of air borne particles or other materials.

CAUTION:

• Do not depress the brake pedal while removing the brake drum because the pistons may pop out.
• 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 spilling.

REMOVAL

1. Remove the wheel and tire assemblies using power tool. Refer to WT "Adjustment".
2. Drain the brake fluid when removing or disassembling the wheel cylinder is necessary. Refer to BR "Draining".
3. Remove the brake drum. Refer to RAX "Exploded View".

NOTE:

• Make sure the parking brake lever is fully released prior to removal of the brake drum.
• The rear wheel hub is housed inside the brake drum.

4. Remove the springs (1) by pushing them inward toward the vehicle and rotating, this will release the shoe hold pins, and the brake shoe assembly (brake shoes, each spring, and adjuster).

   CAUTION: Do not damage the boot of the wheel cylinder.

5. Disconnect the parking brake cable from operating lever.

   CAUTION: Do not bend the parking brake lever.

6. Disassemble the brake shoe assembly (brake shoe, each spring, and adjuster).
7. Remove the wheel cylinder with the following procedure.

a. Disconnect the brake tube from the wheel cylinder.

b. Remove the two bolts and the wheel cylinder from back plate.

    8.   Perform inspection after removal. Refer to BR "Inspection and Adjustment".

INSTALLATION

WARNING: Since dust covering the rear brake has an affect on human body, the dust must be removed with a dust collector. Do not splatter the dust with an air blow gun.

CAUTION:

• Do not depress the brake pedal while removing the brake drum.
• Do not drop the removed parts.
• Do not spill or splash brake fluid on the brake drum.

Note the following, and install in the reverse of removal.

• Check the difference between left and right wheel of adjuster.

: Front

• Shorten the length of the adjuster by rotating it.
• Apply PBC (Poly Butyl Cuprysil) silicone-based grease to the mating surfaces between the adjusters and the brake shoes.
• Apply PBC (Poly Butyl Cuprysil) silicone-based grease to the mating surfaces between the back plates and the brake shoes.
• Apply PBC (Poly Butyl Cuprysil) silicone-based grease to the mating surfaces between the wheel cylinders and brake shoes.
• Apply PBC (Poly Butyl Cuprysil) silicone-based grease to the mating surfaces between the brake shoe anchor areas and brake shoes.
• Do not damage the wheel cylinder.

• Check the component parts of drum brake assembly are installed properly.
• Check the brake shoe sliding surface and brake drum inner surface for grease. Make sure that grease does not contact the lining material.
• Perform the air bleeding when removed or disassembled the wheel cylinder. Refer to BR "Bleeding Brake System".
• Do not allow foreign matter (e.g. dust) and oils other than brake fluid to enter the reservoir tank.
• Adjust the brake shoe clearance (parking brake lever stroke) after install and air bleeding. Refer to PB "Inspection and Adjustment".

Removal and Installation

Disassembly and Assembly

Inspection and Adjustment