Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 32 2042f w040001

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32-29
BRAKE - REAR DRUM BRAKE
320V9-02

OVERHAUL
HINT:
Overhaul the RH side by the same procedures as the LH side.
1. REMOVE REAR WHEEL
2. DRAIN BRAKE FLUID
NOTICE:
Wash the brake fluid off immediately if it attaches to any painted surface.

3. REMOVE REAR BRAKE DRUM SUB-ASSY
(a) Release the parking brake lever, and remove the rear
brake drum.
HINT:
If the rear brake drum cannot be removed easily, perfrom the
following procedure.
(b) Remove the hole plug and insert a screwdriver through
the hole in the backing plate, and hold the automatic ad-
F40009 justing lever away from the adjuster.
(c) Using another screwdriver, reduce the brake shoe adjust-
er by turning the adjusting wheel.

4. INSPECT BRAKE DRUM INSIDE DIAMETER
(a) Using a brake drum gauge or equivalent, measure the in-
side diameter of the drum.
Standard inside diameter: 254.0 mm (10.00 in.)
Maximum inside diameter: 256.0 mm (10.08 in.)

F06408

5. REMOVE FRONT BRAKE SHOE
(a) Using SST, remove the shoe return spring from the front
brake shoe.
SST 09921-00010

C94667 F45067

2005 SIENNA REPAIR MANUAL (RM1163U)

Author : Date : 2777
32-30
BRAKE - REAR DRUM BRAKE

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

C94668

(c) Using SST, remove the shoe hold down spring cup, shoe
hold down spring and pin.
SST 09718-00010
(d) Remove the parking brake shoe strut LWR.
(e) Remove the tension spring and front brake shoe.
(f) Remove the automatic adjust lever spring and rear brake
automatic adjust lever LH from the front brake shoe.

C94669 F45068

6. REMOVE REAR BRAKE SHOE
(a) Using SST, remove the shoe hold down spring cup, shoe
hold down spring and pin.
SST 09718-00010

C94670 F45069

(b) Using a needle-nose pliers, disconnect the parking brake
cable No.3 and remove the rear brake shoe.

F42688

(c) Using a screwdriver, remove the 2 C-washers, parking
brake shoe lever, parking brake reaction lever LH and
rear brake strut set.

C94672

2005 SIENNA REPAIR MANUAL (RM1163U)

Author : Date : 2778
32-31
BRAKE - REAR DRUM BRAKE

7. INSPECT REAR DRUM BRAKE SHOE LINING
THICKNESS
(a) Using a ruler, measure the thickness of the shoe lining.
Standard thickness: 5.0 mm (0.197 in.)
Minimum thickness: 1.0 mm (0.039 in.)
If the lining thickness is at the minimum thickness or less, or if
there is severe, uneven wear, replace the brake shoe.

F42690

8. INSPECT BRAKE DRUM AND REAR DRUM BRAKE
SHOE LINING FOR PROPER CONTACT
(a) Apply chalk to the inside surface of the drum, then grind
drum on the brake shoe lining to fit.
If the contact between the drum and the shoe lining is improper,
repair it using a brake shoe grinder or replace the brake shoe
assembly.

R01564

9. REMOVE LH, FRONT OR UPPER REAR WHEEL
BRAKE CYLINDER ASSY
(a) Using SST, disconnect the brake tube, use a container to
catch the brake fluid.
SST 09023-00101
(b) Remove the 2 bolts and rear wheel brake cylinder assy.

C94671

10. REMOVE REAR WHEEL CYLINDER CUP KIT
(a) Remove the 2 cylinder dust boots from the rear wheel brake cylinder assy.
(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 rear wheel brake cylinder assy.
11. INSPECT BRAKE WHEEL CYLINDER
(a) Check the cylinder bore and piston for rust or scoring.

12. INSTALL REAR WHEEL CYLINDER CUP KIT
(a) Temporarily tighten the bleeder plug to the wheel cylinder,
and install the bleeder plug cap.
(b) Apply 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 rear
wheel brake cylinder.
F42692 (e) Install the 2 new cylinder dust boots to the rear wheel
brake cylinder.
2005 SIENNA REPAIR MANUAL (RM1163U)

Author : Date : 2779
32-32
BRAKE - REAR DRUM BRAKE

13. INSTALL LH, FRONT OR UPPER REAR WHEEL
BRAKE CYLINDER ASSY
(a) Install the rear wheel brake cylinder assy with the 2 bolts.
Torque: 10 Nm (102 kgfcm, 7 ftlbf)
(b) Using SST, connect the brake tube.
SST 09023-00101
Torque: 15 Nm (155 kgfcm, 11 ftlbf)

C94671

14. APPLICATION HIGH TEMPERATURE GREASE
(a) Apply high temperature grease to the shoe attached sur-
face of backing plate.

F42693 F42893

15. INSTALL REAR BRAKE SHOE
(a) Apply high temperature grease to the adjusting bolt.
(b) Install the rear brake strut set with the shoe return spring.
(c) Using a pliers, install the rear brake strut set, parking
brake reaction lever and parking brake shoe lever LH with
the 2 new C-washers.

C94672

(d) Using a needle-nose pliers, connect the parking brake
cable No.3 to the parking brake shoe lever LH.

F42688

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

C94670 F45069

2005 SIENNA REPAIR MANUAL (RM1163U)

Author : Date : 2780
32-33
BRAKE - REAR DRUM BRAKE

16. INSTALL FRONT BRAKE SHOE
(a) Install the rear brake automatic adjust lever LH, automatic
adjust lever spring and parking brake shoe strut LWR to
the front brake shoe.
(b) Using SST, install the front brake shoe, pin, shoe hold
down spring and shoe hold down spring cup.
SST 09718-00010

C94669 F45068

F42698

(d) Using a needle-nose pliers, install the return spring.

C94674

(e) Using SST, install the shoe return spring to the front brake
shoe.
SST 09921-00010

C94667 F45067

2005 SIENNA REPAIR MANUAL (RM1163U)

Author : Date : 2781
32-34
BRAKE - REAR DRUM BRAKE

17. CHECK REAR DRUM BRAKE INSTALLATION
(a) Check that each part is installed properly.

LH: RH:

Front Front
F45346

(b) Measure the brake drum inside diameter and the diame-
ter of the brake shoes. Check that difference between the
diameter is the correct shoe clearance.
Shoe clearance: 0.5 mm (0.020 in.)
NOTICE:
There should be no oil or grease adhering to the friction
surfaces of the shoe lining and the drum.

F02073
F06408 F07160

2005 SIENNA REPAIR MANUAL (RM1163U)

Author : Date : 2782
32-35
BRAKE - REAR DRUM BRAKE

18. INSTALL REAR BRAKE DRUM SUB-ASSY

19. ADJUST REAR DRUM BRAKE SHOE CLEARANCE
Rear Brake (a) Temporarily install the hub nuts.
Automatic Adjust (b) Remove the hole plug, and turn the adjuster and expand
Lever the shoe until the drum locks.
(c) Using a screwdriver, back off the adjuster 15 notches.
(d) Install the hole plug.
Expand

F40023

20. FILL RESERVOIR WITH BRAKE FLUID
21. BLEED MASTER CYLINDER (See page 32-4 )
SST 09023-00101
22. BLEED BRAKE LINE (See page 32-4 )
23. CHECK FLUID LEVEL IN RESERVOIR (See page 32-4 )
24. CHECK BRAKE FLUID LEAKAGE
25. INSTALL REAR WHEEL
Torque: 103 Nm (1,050 kgfcm, 76 ftlbf)
26. INSPECT PARKING BRAKE PEDAL TRAVEL (See page 33-2 )
27. ADJUST PARKING BRAKE PEDAL TRAVEL (See page 33-2 )

2005 SIENNA REPAIR MANUAL (RM1163U)

Author : Date : 2783

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