TRANSMISSION 20R7406 - Caterpillar

Illustration 1 g00860143
128-2993 Brake Control Valve (Service) (1) Return ports to the hydraulic oil tank (2) Supply ports from the brake accumulator charging valve (3) Supply ports to the service brakes (A) Height of installed valve ... 30.2 mm (1.19 inch) (B) Height of the valve with the service brake in the FULLY APPLIED position ... 22.4 mm (0.88 inch)Service brake pressure ... 4310 350 kPa (625 50 psi)Note: The output pressure of the upper port will be approximately 207 kPa (30 psi) higher than the output pressure of the lower port.
Illustration 2 g00860145
224-5775 Brake Control Valve (Service) (4) Return port to the hydraulic oil tank (5) Supply port to the service brakes (6) Supply port from the brake accumulator charging valve (C) Height of installed valve ... 29.7 mm (1.17 inch) (D) Height of the brake control valve with the service brake in the FULLY APPLIED position ... 22.4 mm (0.88 inch)Service brake pressure ... 5500 345 kPa (800 50 psi)