ar4210b0300a

Remove/install master brake cylinder

Type ar · topic 42.10 · version 0100 · 2016-02-12

Applies to: Vehicle 688.1## #B, 688.1## #D

Where it sits

Function group 2 Chassis › 42 Brakes - hydraulic and mechanical systems › 42.10 Service brake — Series 688 (models 1**)

EinPAS 21 Brakes/vacuum system/compressed-air system › 21.15 Service brake/vacuum system › 21.15.30 Master brake cylinder/container/brake booster — Series 688 (models 1**)

AR42.10-B-0300A

Remove/install master brake cylinder

12.02.16

Vehicle 688.1## #B, 688.1## #D

Remove/install master brake cylinder

B42.10-0466-06

1 Cap

2 Brake fluid reservoir

3 Clamp

4 Reservoir fluid hose to the clutch stroke cylinder

5 Dual circuit hydraulic master cylinder

6 Rear brake circuit hydraulic hose

7 Hollow bolt

8 Seal washer

9 Distributor nipple

10 Front brake circuit hydraulic hose

11 Nut

12 Vacuum amplifier

13 Support

Remove and install

Danger

Risk of poisoning by ingestion of brake fluid. Risk of injury by contact with skin and eyes with the brake fluid

Drain and store brake fluid only in the original packing. Wear protective clothes and safety goggles.

AS42.50-B-0001-01A

Attention

Indications regarding to the brake system repair

AH42.00-B-0003-01A

Attention

In order to prevent damages caused by the bake fluid, immediately clean the vehicle's components reached by the fluid

Collect the fluid that is drained from the brake system to dispose it properly.

1

Disconnect the brake fluid level indicator electrical cable, remove the cover (1) from the reservoir (2) and from the fluid filter

2

Suction the brake fluid from the reservoir (2)

Collect the brake fluid in a proper container and dispose it according to the environment protection standards.

The drained brake fluid can not be reused.

3

Disconnect the master cylinder (5) the rear brake fluid piping (6) and cover its hole with a proper plug

4

Disconnect the hollow bolt (7), put the distributor nipple away (9) from the front brake fluid circuit hydraulic pump (10) and cover its hole with a proper plug

Install: Replace the sealing washers (8) and apply to the bolt (7) the specified torque.

*BA42.10-B-1007-08A

5

Release the clamp (3) and disconnect the fluid hose to the clutch stroke cylinder (4)

Install: Check the clamp (3) and the hose (4) and, if necessary, replace them.

6

Release the attachment nuts (11) from the master cylinder (5) to the vacuum amplifier (12) and put the support away (13)

Install: Tighten the nuts with the specified moment of tightening.

*BA42.10-B-1008-08A

7

Remove the master cylinder (5)

8

Install in the reverse direction for the operations

9

Bleed the brakes hydraulic system

AR42.10-B-0010B

Brake cylinder

Número

Denominação

Vehicles 688.1; 688.27

BA42.10-B-1007-08A

Distributor nipple hollow screw to the hydraulic cylinder

Nm

30...36

BA42.10-B-1008-08A

Hydraulic cylinder in the vacuum booster

Nm

30...35

Referenced documents