Subaru Legacy IV (2008 year). Manual - part 957

BR-40

Stop Light Switch

BRAKE

2. CHECK RESISTANCE

1) If the stop light switch does not operate properly,
replace with a new part.
2) Measure the resistance of stop light switch ter-
minals.

D: ADJUSTMENT

Loosen the lock nut, and adjust the stop light switch
position until the clearance between the threaded
end of the stop light switch and stopper (A) be-
comes 0.3 mm (0.012 in). Then, tighten the lock
nut.

Tightening torque:

8 N·m (0.8 kgf-m, 5.8 ft-lb)

NOTE:
Tighten lock nut B until the threaded end of switch
contacts the stopper. Hold the switch so that it does
not rotate, and loosen the lock nut B approx. 60°.
The clearance (A) will become 0.3 mm (0.012 in).

Pedal

Terminal No.

Standard value

Released

1 and 4

Less than 1 

:

2 and 3

1 M

: or more

Depressed

1 and 4

1 M

: or more

2 and 3

Less than 1 

:

(1) Stop light switch

(2) Lock nut A

(3) Lock nut B

(4) Stopper

(5) Brake pedal

BR-00643

1

2

3

4

(5)

(4)

(1)

A

(2)

(3)

BR-00111

BR-41

General Diagnostic Table

BRAKE

16.General Diagnostic Table

A: INSPECTION

 

Trouble and possible cause

Corrective action

1. Insufficient braking (1) Fluid leakage from the hydraulic mechanism

Correct or replace. (cup, piston seal, piston 
boot, master cylinder piston kit, pipe or 
hose)

(2) Entry of air into the hydraulic mechanism

Bleed air.

(3) Wear, deteriorated surface material, water or fluid on 
lining

Replace, grind or clean.

(4) Improper operation of master cylinder, disc caliper, 
brake booster or check valve

Correct or replace.

2. Unstable or uneven 
braking

(1) Fluid on lining or rotor

Correct the cause of fluid leakage, and 
clean or replace.

(2) Rotor defective

Repair or replace the rotor.

(3) Improper lining contact, deteriorated surface, deterio-
rated or worn lining material

Repair by grinding, or replace.

(4) Deformed back plate

Correct or replace.

(5) Overinflation of tires

Adjust the air pressure.

(6) Defective wheel alignment

Adjust alignment.

(7) Loose back plate or support installation bolt

Tighten to the specified torque.

(8) Faulty wheel bearing

Replace.

(9) Defective hydraulic system

Replace the cylinder, brake pipe or hose.

(10) Unstable performance of the parking brake

Check, adjust or replace the rear brake and 
cable system.

3. Excessive pedal 
stroke

(1) Entry of air into the hydraulic mechanism

Bleed air.

(2) Excessive play in the master cylinder push rod

Adjust.

(3) Fluid leakage from the hydraulic mechanism

Correct or replace. (cup, piston seal, piston 
boot, master cylinder piston kit, pipe or 
hose)

(4) Improper lining contact or worn lining

Correct or replace.

4. Brake dragging or 
improper brake 
return

(1) Insufficient pedal play

Adjust play.

(2) Improper master cylinder return

Clean or replace the cylinder.

(3) Clogged hydraulic system

Replace.

(4) Improper return or adjustment of parking brake

Repair or adjust.

(5) Weakened spring tension or breakage of shoe return 
spring

Replace the spring.

(6) Improper disc caliper operation

Correct or replace.

(7) Faulty wheel bearing

Replace.

5. Brake noise (1) 
(creaking sound)

(1) Hardened or deteriorated brake pad

Replace the pad.

(2) Worn brake pad

Replace the pad.

(3) Loose back plate or support installation bolt

Tighten to the specified torque.

(4) Loose wheel bearing

Tighten to the specified torque.

(5) Dirty rotor

Clean the rotor, or clean and replace brake 
assembly.

6. Brake noise (2) 
(hissing sound)

(1) Worn brake pad

Replace the pad.

(2) Improperly installed pad

Correct or replace the pad.

(3) Loose or bent rotor

Retighten or replace.

7. Brake noise (3) 
(click sound)

Excessively worn pad or support

Replace the pad or the support.

BR-42

General Diagnostic Table

BRAKE

PB-2

General Description

PARKING BRAKE

1. General Description

A: SPECIFICATION

B: COMPONENT

1. PARKING BRAKE (REAR DISC BRAKE)

Type

Mechanical, drum in disc rear brakes

Effective drum diameter

mm (in)

170 (6.69)

Lining dimensions
(Length × Width × Thickness)

mm (in)

163.1 × 30.0 × 3.2

(6.421 × 1.181 × 0.126)

Clearance adjustment

Manual adjustment

Lever stroke

notches/N (kgf, lb)

5 — 6/200 (20.4, 45)

(1)

Back plate

(7)

Strut spring

(13)

Adjuster

(2)

Retainer

(8)

Strut

(14)

Shoe hold-down cup

(3)

Spring washer

(9)

Shoe guide plate

(15)

Shoe hold-down spring

(4)

Lever

(10)

Primary return spring

(16)

Shoe hold-down pin

(5)

Parking brake shoe (Primary)

(11)

Secondary return spring

(17)

Adjusting hole cover

(6)

Parking brake shoe (Secondary)

(12)

Adjusting spring

 

 

PB-00048

(16)

(10)

(13)

(11)

(9)

(6)

(2)

(1)

(17)

(3)

(4)

(7)

(8)

(14)

(15)

(12)

(5)