Master Cylinder Replacement Commercial

1. Apply the parking brake.
2. Disconnect the brake pipes.
3. Plug the pipe ends in order to prevent contaminates from entering the system.
4. Remove the master cylinder mounting nuts.
5. Remove the master cylinder.
6. Remove the bracket and the spacer.

1. Bench bleed the master cylinder before installation. Refer to Master Cylinder Bench Bleeding .
2. Install the bracket and the spacer.
3. Install the master cylinder.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

4. Install the master cylinder mounting nuts.

Tighten
Tighten the nuts to 29 N·m (21 lb ft).

5. Connect the brake pipes.

Tighten
Tighten the brake pipe fittings to 24 N·m (18 lb ft).

6. Bleed the brakes. Refer to Hydraulic Brake System Bleeding .
7. Release the parking brake.

Master Cylinder Replacement Motorhome with JB7/JB8

1. Apply the parking brake.
2. Disconnect the brake pipes.
3. Plug the pipe ends in order to prevent contaminates from entering the system.
4. Remove the master cylinder mounting nuts.
5. Remove the master cylinder.
6. Remove the bracket.

1. Bench bleed the master cylinder before installation. Refer to Master Cylinder Bench Bleeding .
2. Install the bracket.
3. Install the master cylinder.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

4. Install the master cylinder mounting nuts.

Tighten
Tighten the nuts to 29 N·m (21 lb ft).

5. Connect the brake pipes.

Tighten
Tighten the brake pipe fittings to 24 N·m (18 lb ft).

6. Bleed the brakes. Refer to Hydraulic Brake System Bleeding .
7. Release the parking brake.

Master Cylinder Replacement Motorhome with JF9

1. Apply the parking brake.
2. Disconnect the brake pipes.
3. Plug the pipe ends in order to prevent contaminates from entering the system.
4. Remove the master cylinder mounting nuts.
5. Remove the master cylinder.
6. Remove the bracket and the spacer.

1. Bench bleed the master cylinder before installation. Refer to Master Cylinder Bench Bleeding .
2. Install the bracket and the spacer.
3. Install the master cylinder.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

4. Install the master cylinder mounting nuts.

Tighten
Tighten the nuts to 29 N·m (21 lb ft).

5. Connect the brake pipes.

Tighten
Tighten the brake pipe fittings to 24 N·m (18 lb ft).

6. Bleed the brakes. Refer to Hydraulic Brake System Bleeding .
7. Release the parking brake.