Proportioning Valve

Removal & Installation

To Remove:

1. Before servicing the vehicle, refer to the precautions at the beginning of this section.
2. Remove or disconnect the following:
   • Brake pipe from proportioning valve at four places
   • Proportioning valve from its bracket

CAUTION
Do not disassemble or adjust the proportioning valve. (The proportioning valve must be replaced as an assembly.)

To Install:

1. Install or connect the following:
   • Proportioning valve to bracket
     1. Torque to: 13 ft. lbs. (18 Nm)
   • Brake pipes correctly to proportioning valve
     1. Torque to: 11 ft. lbs. (15 Nm)
2. Bleed air, then check each joint of brake pipe for oil leaks.