LABEL 0961991 - Caterpillar

Solenoid Valve (Right Steering Clutch)
Solenoid Valve (Left Steering Brake)
Solenoid Valve (Right Steering Brake)
Illustration 4 g00858931
Solenoid valve for the left steering brake and the right steering brakeSolenoid valve for the left steering clutch and the right steering clutchThe left and right brake solenoid valves are outputs of the ECM. The ECM uses these solenoid valves for braking and steering of the machine. The solenoids control the amount of oil pressure that is applied to the corresponding brake. The brakes are spring applied and hydraulically released. Each brake solenoid has a connector with two contacts. The left brake solenoid receives a signal from J1-58 connector contact of the ECM. The right brake solenoid receives a signal from J1-59 connector contact of the ECM. The other contact of each solenoid is connected to the return circuit of the solenoid at J1-60. Note: The solenoid coils are not designed for the operation of 24 VDC directly. The ECM sends a 24 volt PWM signal at a duty cycle which provides the necessary current to the solenoid coils.