Download XCMG All Terrain Crane QAY220 Maintenance Electrical Schematic Hydraulic Schematic Manual PDF ( English )

XCMG QAY220 All Terrain Crane Maintenance, Electrical Schematic & Hydraulic Schematic Manual PDF provides comprehensive technical documentation for service and diagnostics. It includes detailed hydraulic circuit diagrams, electrical wiring schematics, and system principle explanations for accurate fault detection and repair. The manual also covers maintenance schedules, inspection procedures, and safety guidelines. It is essential for technicians and engineers to ensure reliable crane performance, reduce downtime, and maintain safe operation in complex heavy lifting environments. www.themanualsgroup.com

MODEL COVERED :
XCMG QAY220 All Terrain Crane

CONTENTS INCLUDED:
Preface
Cautions On Crane Maintenance And Service
Basic Instructions
Cautions On Maintenance And Service
Maintenance And Service On Lifting Operation
Winch System
Part Function
Working Principle And Structure
Winch Reducer
Use And Maintenance
Slewing System
Part Function
Working Principle And Structure
Use And Maintenance
Slewing Bearing
Part Function
Working Principle And Structure
Axial Clearance And Radial Clearance Of Slewing Bearing
Hydraulic Pump
Part Function
Working Principle And Structure
Variable Pump
Replacement Of Variable Pump
Elevating Cylinder
Part Function
Structure
Disassembly And Reassembly
Telescoping Cylinder
Part Function
Hydraulic Control Of Cylinders For Cylinder Pin And Boom Pin
Hydraulic System Principle
Typical Troubles And Maintenance Of Single Cylinder Pinning Telescoping System
Disassembly And Reassembly
Counterweight Cylinder
Structure
Disassembly And Reassembly
Cylinder For Tilting Operator’s Cab
Structure
Disassembly And Reassembly
Turntable Locking Cylinder
Structure And Function
Disassembly And Reassembly
Superstructure Hydraulic Oil Tank
Structure
Disassembly And Reassembly
Telescoping Counterbalance Valve Spool
Part Function
Working Principle And Structure
Disassembly And Reassembly
Elevating Counterbalance Valve
Part Function
Working Principle
Disassembly And Reassembly
Hoist Counterbalance Valve
Part Function
Working Principle And Structure
Disassembly And Reassembly
Auxiliary Valve Block
Part Function
Working Principle And Structure
Disassembly And Reassembly
Oil Circuit Integrated Block
Part Function
Working Principle And Structure
Disassembly And Reassembly
Transition Block
Part Function
Working Principle And Structure
Disassembly And Reassembly
Slewing Buffer Valve
Part Function
Working Principle And Structure
Disassembly And Reassembly
Telescoping Control Valve
Part Function
Working Principle And Structure
Disassembly And Reassembly
Main Winch Motor
Part Function
Working Principle And Structure
Common Troubles And Troubleshooting
Auxiliary Winch Motor
Part Function
Working Principle And Structure
Common Troubles And Troubleshooting
Crane Hydraulic System
Cleaning And Replacement Of Oil Filter
Filtering Of Hydraulic Oil
Notes On Maintenance
Troubleshooting For Oil Leakage Of Hydraulic System
Disassembly Of Hydraulic System
Cleaning Of Hydraulic System
Electric System Maintenance And Principle Schemes
Maintenance Of Electric System
Electric System Principle Schemes
Hydraulic System Principle Scheme
Oil
Gear Oil
Grease
Centralized Lubrication System
Filling Up Lubricant
Preparation For Operation
Maintenance And Service Of Lubrication System
Common Troubles And Troubleshooting
Oil Comparison
Common Troubles And Troubleshooting
Replacement Of Wire Ropes
Replacement Standard Of Wire Ropes
Requirements Before Wire Rope Installation
Replacement Method Of Wire Ropes
Replacement Of Return Filter
Notes On Operation
Replacement Method
Appendix
Main Parts List
Easy Wear Parts List
Total Pages

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