Brake Proportioning/Combination Valve: Service and Repair

Proportioning valves should never be disassembled.

1. Remove Hydraulic Control Unit (HCU) as described under Hydraulic Control Unit Replacement.

Fig 70 Proportioning Valve Replacement:

2. Remove required valve from HCU.
3. Reverse procedure to install. Torque proportioning valve to 106 inch lbs.