CASE CRAWLER DOZER D125C Hydraulic Schematic

Technical Highlights

• Model: CASE D125C Crawler Dozer

• System: Hydraulic Circuit Diagram

• File Info: PDF • 1 page • Full-color schematic with 67-component index

• 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

• System Layout Overview
    • Full schematic of all hydraulic subsystems
    • Color-coded flow paths for pressure, return, and load-sense circuits

• Track Drive Hydraulic Circuit
    • Left & Right Track Motors
    • Motor Control Solenoid and Check Valves
    • Flushing Valves and Speed Control Piston

• Hydraulic Pump System
    • Tandem Pump Assembly
    • Charge Pump and Pressure Relief Valves
    • Reservoir, Filter, and Cooler Circuits

• Equipment Hydraulics
    • Lift, Tilt, Angle, and Ripper Cylinder Circuits
    • Overset Relief and Pilot Pressure Check Valves
    • Load-Sense Network and Pilot Accumulator

• Hydraulic Specifications
    • 420 bar Main Line Pressure
    • 390 bar Working Line
    • 30 bar Return Pressure
    • 207 ±3.5 bar Charge Relief
    • 400 ±5 bar Pump Outlet

• Component Index (67 items)
    • Track Drive Motor, Motor Speed Sensor, Motor Control Solenoid Valve
    • Brake Release Solenoid, Charge Pump, Lift/Tilt/Angle/Ripper Cylinders
    • Hydraulic Filter Bypass, Load Sense Orifice, and Pilot Accumulator

Delivery

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