SYSTEM / Hydraulic System OUTLINE The hydraulic system is broadly divided into the main circuit, the steering circuit, the HST circuit, and the brake circuit. • Main Circuit Consists of the neutral circuit ,the front attachment operation circuit, and the auxiliary front attachment operation circuit (optional) - composed of the main pump, the control valve, the bucket cylinder,and the lift arm cylinder. • Steering Circuit Consists of the steering circuit and the steering stop circuit - composed of the priority valve, the steering valve, and the steering cylinder. • HST Circuit Consists of the charging circuit, the neutral circuit, the forward travel circuit, the reverse travel circuit, and the inching circuit - composed of the HST pump and the HST motor. • Brake Circuit Consists of the service brake circuit and the parking brake circuit - composed of the brake oil tank, the brake master cylinder, and the parking brake solenoid valve.
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