B3FG25K1 - 206

REMOVAL - REFITTING REAR BRAKE SHOES (BOSCH)

1 - RECOMMENDED TOOLS

[1] Wheel cylinder clamps .

[2] Pliers for removing and refitting brake spring .

[3] Tool for removing and refitting shoe retaining spring cups .

[4] Tool for locking the nuts (-).0526J .

2 - REMOVAL

Deal with each side in turn .

REMOVE THE HUB AND DRUM ASSEMBLY .

Remove :

- the spring (1) ; using the tool [2]
- the cups (2) and retaining springs using tool [3]
- the brake shoe, adjustment mechanism and springs assembly (3)

WARNING : do not damage the wheel cylinder gaiters .

Uncouple the handbrake cable .

Fit the tool [1] on the wheel cylinder .

Check :

- sealing around the wheel slave cylinder pistons
- the good condition of the wheel slave cylinder rubber protectors
- THE AMOUNT OF DRUM WEAR

Replace the wheel slave cylinder (if necessary) .

Replace : The brake drum (if necessary) .

3 - REFITTING

Clean the backplate (HENKEL type product) .

Always renew :

- the seal (4)

Grease :

- the surfaces (A) using LUBRITHERM G200 type grease
- the handbrake lever shaft
- the adjustment mechanism thread

Check that the automatic adjustment wheel rotates freely .

IMPERATIVE : return the adjustment system wheel to position (B) .

Continue the fitting operations in the reverse order to removal .

Fit :

- THE DRUM HUB
- the washer
- the nut (5)

Tighten the nut (5) to 20 da.Nm .

Lock the nut (5) using the tool [4] .

Bleed the hydraulic circuit (if necessary) .

Apply full pressure to the brake pedal about thirty times (With the engine running, gently and progressively) .

3 - 1 - TIGHTENING TORQUES

Wheel slave cylinder brake pipe : 1.5 da.Nm .

Tightening conditions (Bolt (6)) :

- brush the bolt threads
- coat the bolts with LOCTITE FRENETANCH
- tightening torque(s) : 3.5 da.Nm

Tightening conditions (Nut (5)) :

- tightening torque(s) : 20 da.Nm
- lock the nut (5) using the tool [4]

Tightening conditions (Wheel cylinders securing bolt(s)) :

- always renew : the securing bolts
- tightening torque(s) : 0.8 da.Nm

Wheel bolts :

- steel wheel : 8,5 da.Nm
- alloy wheel : 8,5 da.Nm