Removal Procedure
- Remove the gear cover (3).
Refer to
Modulator Gear Cover Replacement
.
- Remove the brake motor pack (ABS) (1). Refer to
ABS Motor Pack Replacement
.
- Remove the 2 ABS brake modulator to master cylinder banjo
bolts (2).
- Separate the brake modulator (6) from the master cylinder (8).
- Remove the 2 transfer tubes (7) with O-rings from
the master cylinder (8) or the ABS brake modulator (6).
- Remove the banjo bolt O-rings from the master cylinder (8)
and the ABS brake modulator (6).
Installation Procedure
Important: When replacing the ABS brake modulator, install the 3 gears in
the same location on the replacement brake modulator. Refer to
Brake Modulator Gear Replacement
.
No repair of the ABS brake modulator is authorized. Replace the ABS
brake modulator as an assembly.
Important: Use new transfer tube assemblies when assembling the ABS brake modulator/master
cylinder assembly. Ensure that the 2 O-rings are properly installed
on each transfer tube.
- Use the following procedure in order to install the 2 transfer
assemblies:
1.1. | Lubricate the transfer tube assembly O-rings with clean brake
fluid. |
1.2. | Install the transfer tube assemblies (7) into ports of
the ABS brake modulator (6). |
Push the tube assemblies in by hand to the bottom of the ports.
Important: Refer to Hydraulic Brakes for repair of the master cylinder.
- Lubricate the new banjo bolt O-ring with clean brake fluid.
- Install the banjo bolt O-ring into the master cylinder (8)
and the ABS brake modulator (6).
- Use the following procedure in order to install the ABS brake
modulator (6) onto the master cylinder (8):
4.1. | Clamp the mounting flange of the master cylinder in a vise. |
4.2. | Hold the ABS brake modulator and rock the modulator into position
on the master cylinder. |
4.3. | Insert the transfer tube assemblies (7) into the master
cylinder ports. |
- Install the 2 ABS brake modulator to master cylinder banjo
bolts (2).
Tighten
Tighten the banjo bolts to 24 N·m (17 lb ft).
- With the ABS brake modulator positioned upside down, and the gears
facing you, rotate each ABS brake modulator gear clockwise until movement
stops.
The procedure causes the following conditions:
• | The pistons are positioned very close to the top of the modulator
bore. |
• | The brake bleeding procedure is simplified. |
- Install the ABS brake motor pack (1) onto the ABS brake
modulator/master cylinder assembly. Refer to
ABS Motor Pack Replacement
.
- Install the gear cover (3) to the ABS brake modulator/master
cylinder assembly. Refer to
Modulator Gear Cover Replacement
.