Drum Brake System: Service and Repair

REAR DRUM BRAKE

COMPONENTS:

DISASSEMBLY

HINT: Overhaul the RH side by the same procedures as LH side.

1. REMOVE REAR WHEEL
2. DRAIN BRAKE FLUID

NOTICE: Wash the brake fluid off immediately if it comes into contact with any painted surface.

3. REMOVE REAR DRUM BRAKE SUB-ASSEMBLY
(a) Release the parking brake lever, and remove the brake drum.

HINT: If the brake drum cannot be removed easily, do the following steps.

(b) Remove the hole plug and insert a screwdriver through the hole in the backing plate, and hold the automatic adjusting lever away from the adjuster.

4. REMOVE FRONT BRAKE SHOE
(a) Using SST, remove the upper side tension spring with spacer.
SST 09921-00010

(b) Using a needle-nose pliers, remove the anchor side return spring.

(c) Using SST, remove the cup, shoe hold-down sprig and pin.
SST 09718-00010
(d) Disconnect the upper side return spring from the front shoe, and remove the front brake shoe.
5. REMOVE PARKING BRAKE SHOE STRUT SET LH
6. REMOVE REAR BRAKE AUTOMATIC ADJUST LEVER LH

7. REMOVE REAR BRAKE SHOE
(a) Using SST, remove the cup, shoe hold-down spring and pin.
SST 09718-00010
(b) Remove the upper side return spring from the rear brake shoe.

8. REMOVE REAR BRAKE PARKING BRAKE SHOE LEVER SUB-ASSEMBLY
(a) Using a screwdriver, remove the C-washer and parking brake shoe lever.

9. REMOVE LH, FRONT OR UPPER REAR WHEEL BRAKE CYLINDER ASSEMBLY
(a) Using SST, disconnect the brake tube, use a container to catch brake fluid.
SST 09023-00101
(b) Remove the 2 bolts and wheel cylinder.
10. REMOVE REAR WHEEL CYLINDER CUP KIT
(a) Remove the 2 cylinder dust boots from the wheel cylinder.
(b) Remove the 2 pistons and compression spring.
(c) Remove the 2 wheel cylinder cups from each piston.
(d) Remove the bleeder plug cap and bleeder plug from the wheel cylinder.

REASSEMBLY
1. INSTALL REAR WHEEL CYLINDER CUP KIT
(a) Temporarily tighten the bleeder plug to the wheel cylinder, and install the bleeder plug cap.

(b) Apply the lithium soap base glycol grease to the 2 new wheel cylinder cups and the 2 pistons.
(c) Install the 2 wheel cylinder cups to each piston.
(d) Install the compression spring and 2 pistons to the wheel cylinder.
(e) Install the 2 new cylinder dust boots to the wheel cylinder.
2. INSTALL LH, FRONT OR UPPER REAR WHEEL BRAKE CYLINDER ASSEMBLY
(a) Install the wheel cylinder with the 2 bolts.
Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf)
(b) Using SST, connect the brake tube.
SST 09023-00101
Torque: 15.2 N*m (155 kgf*cm, 11 ft.*lbf)

3. APPLICATION HIGH TEMPERATURE GREASE
(a) Apply the high temperature grease to the shoe attached surface of backing plate.

4. INSTALL REAR BRAKE PARKING BRAKE SHOE LEVER SUB-ASSEMBLY
(a) Using a pliers, install the parking brake shoe lever with a new C-washer.

5. INSTALL REAR BRAKE SHOE
(a) Using a needle-nose pliers, connect the parking brake cable No. 3 to the parking brake shoe lever.
(b) Connect the upper side return spring to the rear brake shoe.

(c) Using SST, install the rear brake shoe, pin, shoe hold-down spring and cup.
SST 09718-00010
6. INSTALL REAR BRAKE AUTOMATIC ADJUST LEVER LH

7. INSTALL PARKING BRAKE SHOE STRUT SET LH
(a) Apply the high temperature grease to the adjusting bolt.
(b) Install the parking brake shoe strut set LH.
8. INSTALL FRONT BRAKE SHOE
(a) Install the upper side return spring to the front brake shoe.

(b) Using SST, install the front brake shoe, pin, shoe hold-down spring and cup.
SST 09718-00010

(c) Using a needle-nose pliers, install the anchor side return spring.
(d) Install the spacer to the upper side tension spring.

(e) Using SST, install the upper side tension spring with spacer.
SST 09921-00010
9. CHECK REAR DRUM BRAKE INSTALLATION
(a) Check that each part is installed properly.

NOTICE: There should be no oil or grease adhering to the friction surfaces of the shoe lining and drum.

10. INSTALL REAR BRAKE DRUM SUB-ASSEMBLY
11. ADJUST REAR DRUM BRAKE SHOE CLEARANCE
(a) Temporarily install the hub nuts.

(b) Remove the hole plug, and turn the adjuster and expand the shoe until the drum locks.

(c) Using a screwdriver, back off the adjuster 8 notches.
(d) Install the hole plug.
12. FILL RESERVOIR WITH BRAKE FLUID
13. BLEED MASTER CYLINDER
(a) Bleed the master cylinder.
SST 09023-00101
14. BLEED BRAKE LINE
(a) Bleed the brake line.
15. CHECK FLUID LEVEL IN RESERVOIR
16. INSPECT FOR BRAKE FLUID LEAK
17. INSTALL REAR WHEEL
Torque: 103 N*m (1,050 kgf*cm, 76 ft.*lbf)
18. INSPECT PARKING BRAKE LEVER TRAVEL
(a) Inspect the parking brake lever travel.
19. ADJUST PARKING BRAKE LEVER TRAVEL
(a) Adjust the parking brake lever travel.