Link Belt 3900Q Quantum Excavator Index:

• Explanation
  • Contents
  • Safety
  • Introduction
  • Precautions
  • Standard Torque Specifications
  • Numerical Value Conversion Table
• Specifications
  • Major Equipment Specifications
    • Lower Mechanism
    • Upper Mechanism
    • Engine
    • Hydraulic Pump
    • Controls
    • Filters, Fluids and Lubricants
  • Performance
    • Main Body Weight
    • Lifting Capacities
• Main Body Disassembly and Servicing Procedures
  • Lower Mechanism
    • Travel Equipment
    • Drive Sprocket
    • Take-up Roller
    • Upper Roller
    • Lower Roller
    • Recoil Spring Disassembly and Assembly
    • Recoil Spring
    • Grease Cylinder
    • Track Shoe
    • Rotating Joint
  • Attachment
    • Bucket Cylind er
    • Arm Cylinder
    • Boom Cylinder
  • Maintenance Standards
• Major Components Disassembly and Servicing Procedures
  • Tightening Torque for Major Parts
  • Take-up Roller
  • Upper Roller
  • Lower Roller
  • Recoil Spring
  • Rotating Joint
• Major Hydraulic Components Disassembly and Servicing Procedures
  • Hydraulic Pump
    • Instruction of Hydraulic Pump
    • Maintenance of Hydraulic Pump
    • Instruction of Regulator
    • Maintenance of Regulator
  • Travel Mechanism
    • Motor Assembly
    • S/A; Motor
    • S/A; Reduction Gear
  • Swing Mechanism
    • Motor Assembly
    • S/A; Motor
    • S/A; Reduction Gear
  • Control Valve
  • Hydraulic Cylinder
    • Specification and Structure
    • Maintenance of Cylinder
  • Remote Control Valve
  • Valve (8-spool Solenoid Valve)
  • Valve (Shuttle Valve)
  • Valve (Cushion Valve)
  • Valve (Stack Valve)