Rear brake control

4 -	Rear brake control

1	Special screw

2	Seal, thk.1

3	Rear brake hose

4

5

6

7	Special screw

8	Rubber block

9	Brake lever

10

11

12

13

14

15	Clevis pin

16

17	Rear brake cylinder

18

19	Adjuster rod

20

21	Blanking plug

22	Complete brake fluid reservoir

23	Spare connector

24

25

Spare parts catalogue


Rear brake

Bold reference numbers in this section identify parts shown in this exploded view diagram. These parts do not appear in the figures near the text.

Removing the rear brake master cylinder


Operations	Reference See Section
Drain the brake circuit	D 4, Draining the braking circuit

Critical safety components. The brake master cylinder manufacturer recommends that you do not attempt to service the internal components of the brake master cylinder. Incorrect overhaul of these critical safety components can endanger rider safety.

Maintenance operations on these units are limited to replacing: control lever, reservoir unit and reservoir and cylinder fasteners.

Unscrew the retaining screws (18) of the rear brake cylinder (17) from the footpeg plate (A).

Unscrew the special screw (1) from the brake cylinder (17) and collect the two washers (2).

Unscrew the screw (20), making sure to collect the washer (25). Remove the reservoir (22) together with the hose (16).

Remove the footpeg plate (Sect. H 4, Removing the footpegs).

Withdraw the retaining pin (5) securing the rear brake lever to the footpeg bracket. Remove the spring (6), the complete brake lever (9) and the washer (12).

Disassembling the rear brake control

The spare brake master cylinder is supplied as a complete assembly. The inner components may not be replaced individually.

Please refer to the exploded view at the beginning of this section for indications on disassembly of master cylinder outer components.

If the bush (14) inside the brake pedal (9) needs replacing, drive the replacement bush in place using a press. The bush must be seated 2 mm deep below pedal outer face.

Remove the system component parts as shown in the exploded view at the beginning of this section.

After servicing the rear brake control, check the brake pedal position following the instructions given in Sect. D 4, Adjusting the position of the gear change and rear brake pedals.

Refitting the rear brake master cylinder

Lubricate the O-ring (B) and fit it to the pin (5).

Lubricate the other O-ring (B).

Refit the pin (5) to the brake pedal lever (9), insert the spring (6), the other O-ring (B) and the washer (12).

Apply threadlocker to the thread of the pin (5).

Install the footpeg plate to the frame (Sect. H 4, Refitting the footpegs).

Installation is a reversal of the removal procedure.

The correct position of the spring (6) is shown in the diagram.

Ensure that hose connecting brake master cylinder to caliper is correctly positioned as shown on next page.


Operations	Reference See Section
Fill the braking system	D 4, Filling the brake circuit

Rear brake hose routing