CASE CRAWLER DOZER D150C Hydraulic Schematic

Technical Highlights

• Model: CASE D150C Crawler Dozer

• Document Type: Factory Hydraulic Circuit Diagram

• File Format: PDF • 1 page • Full-color system schematic

• Flow Legend Colors:
    • Red: Hydraulic Pressure
    • Orange: Charge Pump Pressure
    • Cyan: Return to Tank / Pump Inlet
    • Purple: Track Drive
    • Blue: Track Drive Case Drain
    • Green: Load Sense

Table of Content

• Complete Hydraulic Schematic Overview
    • Full hydraulic network mapping with labeled subsystems
    • Pressure, return, and pilot line flow paths

• Subsystems Covered
    • Track Drive Hydraulic Circuit — Left and right track pump and motor systems with charge flow and brake release circuits
    • Equipment Hydraulic Circuit — Lift, tilt, angle, and ripper cylinder control valves
    • Fan Drive and Reverse Circuit — Cooling fan motor, reversing solenoid, and pressure regulation
    • Pilot and Load Sense System — Pressure reducing valves, accumulators, and feedback control lines

• System Pressure Values
    • Main Hydraulic Pressure: 420 bar
    • Charge Pressure: 25 bar
    • Load Sense Pressure: 350 bar
    • Return Pressure: 30 bar

• Component Index (77 Parts)
    • Track Drive Motor, Speed Sensor, Control Solenoid, and Flushing Valve
    • Equipment Valve Assembly (Lift, Tilt, Angle, Ripper)
    • Charge Pump, Pilot Accumulator, and Load Sense Valve
    • Cooling Fan Motor and Pressure Relief System
    • Hydraulic Filters, Bypass Valves, and Diagnostic Test Ports

Delivery

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