Contents: Removal ⤓ Installation ⤓
Removal
To remove the hydraulic unit, perform the following operations.
1. Drain the brake fluid.
2. Remove the air conditioner relay box.
Fig. 14.47. Direction of rotation of the lever (1) of the locking device when disconnecting the connector from the electronic control unit
3. Disconnect the connector from the ABS electronic control unit. Turn the lock lever in the direction of the arrow as shown in Fig. 14.47 to unlock the lock, then disconnect the connector.
Fig. 14.48. Hydraulic unit of the ABS system: 1 – ABS electronic control unit connector; 2 – connection of brake system pipes (15 Nm); 3 – bolt (25 Nm); 4 – nut (25 Nm); 5 – hydraulic block bracket; 6 – hydraulic block assembly
4. Unscrew the nuts and disconnect the pipes 2 (Fig. 14.48) of the brake system.
5. Unscrew the two bolts and remove the bracket 5 of the hydraulic unit.
6. Remove the hydraulic unit 6 as an assembly.
Caution! The hydraulic unit assembly is heavy, so be careful when removing it.
Attention! The hydraulic unit assembly is a non-disassemblable structure, therefore it is prohibited to loosen any bolts and nuts.
Caution! Do not drop or hit the hydraulic unit.
Caution! Do not turn the hydraulic unit over or lay it on its side.
Installation
Installation is carried out in the reverse order of removal, taking into account the following.
Fig. 14.49. Connecting the brake pipes to the hydraulic unit: 1 – from the main brake cylinder (primary chamber); 2 – to the pressure regulator (right wheel); 3 – to the front right brake mechanism (left wheel); 4 – from the main brake cylinder (secondary chamber); 5 – to the pressure regulator (left wheel); 6 – to the front right brake mechanism (right wheel)
1. Connect the brake pipes to the hydraulic unit as shown in Fig. 14.49.
2. Install the air conditioner relay box.
3. Fill with brake fluid.
4. Remove air from the hydraulic drive of the brake system.
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5. Adjust the brake pedal.