Brake Pipe Replacement

Brake Pipe Replacement

Removal Procedure

Caution: Refer to Brake Pipe Replacement Caution in Service Precautions.

Important: Brake pipes that run parallel to each other must maintain a 6 mm (114 inch) clearance.

1. Disconnect the brake pipe fittings.
2. Remove the brake pipe fasteners from the vehicle.
3. Remove the brake pipe from the vehicle.

Installation Procedure
1. Remove 1/4 inch of the protective coating before flaring the end of the brake pipe.
2. Bend the brake pipe to achieve proper fit.
3. Install the brake pipe to the vehicle. Maintain a clearance of 19 mm (3/4 inch) for all moving or vibrating components.
4. Install the brake pipe fasteners to the vehicle.

Notice: Refer to Fastener Notice in Service Precautions.

Important: After tightening the brake pipe fittings to the proper specification, apply a small amount of silicone sealant to the area where the brake pipe meeting the brake pipe fitting.

5. Connect the brake pipe fittings.
^ Tighten the brake pipe fittings to the BPMV or the wheel jounce hoses to 20 Nm (15 ft. lbs.).
^ Tighten the brake pipe fittings to the master cylinder to 30 Nm (22 ft. lbs.).
^ Tighten the brake pipe fittings to the brake hose fitting to 20 Nm (20 ft. lbs.).
6. Bleed the brake hydraulic system. Refer to one of the following procedures:
^ If the brake pipe that was replaced was between the master cylinder and the BPMV, refer to master cylinder.
^ If the brake pipe that was replaced was between the BPMV and the wheel jounce hoses, refer to BPMV.