Linkbelt 3900Q Quantum Excavator Service Repair Manual

Service Repair Manual: 622 pages
Operators Manual: 168 pages
Hydraulic and Electrical Schematics
Manuals: Repair and Operators Manual
1. Explanation
Safety
Introduction
Precautions
Standard Torque Specifications
Numerical Value Conversion Table
2. Specifications
Major Equipment Specifications
Lower Mechanism
General View Lower Assembly Drawing
Travel Equipment
Take-up
Upper Roller
Lower Roller
Recoil Spring
Shoe
Upper Mechanism
Swing Equipment
Engine
Engine
Radiator
Engine Control
Fuel Tank
Hydraulic Pump
Hydraulic Pump
Sump Tank
Rotating Joint
Controls
Remote Control Valve
By-pass Oil Filter
Excavator Attachment
Filters, Fluids and Lubricants
Performance
Main Body Weight
Lifting Capacities
3. 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
4. Major Components Disassembly and Servicing Procedures
Tightening Torque for Major Parts
Take-up Roller
Upper Roller
Lower Roller
Recoil Spring
Rotating Joint
5. 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)