1. Remove the air brake chamber clevis.
2. Remove the air line from the air brake chamber assembly. Refer to the following procedures in Air Brakes:

•	Hose and Line Replacement - Nylon and Metal Compression

•	Hose and Line Replacement - Nylon Push-In Type Fitting

•	Hose and Line Replacement - Flexible




3. Remove the mounting nuts and the washers from the air brake chamber assembly.
4. Remove the air brake chamber assembly from the brake chamber/camshaft support bracket.

Install the air brake chamber assembly to the brake chamber/camshaft support bracket.

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.

1. Install the mounting washers and the nuts to the air brake chamber assembly.

Tighten

•	Tighten the service brake chamber assembly (type 16) mounting nuts to 39 N·m (29 lb ft).

•	Tighten the service brake chamber assembly (type 20 and 24) mounting nuts to 74 N·m (55 lb ft).

2. Install the clevis.
3. Install the air line to the air brake chamber assembly. Refer to the following procedures in Air Brakes.

•	Hose and Line Replacement - Nylon and Metal Compression

•	Hose and Line Replacement - Nylon Push-In Type Fitting

•	Hose and Line Replacement - Flexible