About the JCB 505-20 Loadall Service Manual
This Service Manual contains detailed technical and service information, step by step instructions, repair recommendations, also many illustrations and diagrams for these models of tractors New Holland:
8670,
8770,
8870,
8970.
CONTENTS:
- SECTION 00 - GENERAL INFORMATION
- Forward
- Precautionary Statements
- Safety Precautions
- Health and Safety Precautions
- Tractor Identification
- Service Techniques
- Sealer Specifications
- Hardware Torque Values
- Lubrication
- Recommended Lubricants and Coolants
- SECTION 10 - ENGINE
- Specifications
- Torgue Values
- Grease and Sealants
- Special Tools
- Description of Operation
- Cylinder Head Assembly
- Camshaft Assembly
- Crankshaft Assembly
- Connecting Rods
- Pistons
- Manifolds
- Cylinder Block Assembly
- Timing Gears
- Engine Lubrication
- Troublethooting
- Disassembly and Repair
- Cylinder Head
- Cylinder Head Reassembly
- Additional Information
- Crankcase Front Cassette Seal
- Parts Affected
- Additional information
- Removal of Old Style Seal and Installation of the New Cassette Seal
- Front Cassette Seal Removal
- SECTION 21 - TRANSMISSION
- Specifications
- Powershift Transmission
- Gear Ratios
- Ground Speed
- Electrical System
- Description of Operation
- Transmission Housing
- Powershift Transmission Controls
- Digital Display
- Inching Pedal
- Starting the Engine and Moving Forward
- Starting the Engine and Moving in Reverse
- Shuttle Operations
- Speed Matching
- Auto Shift
- Creeper Gears (optional)
- Programmable Upshift - Downshift
- Transmision Components
- Clutches
- Speed Clutches
- Directional Clutches
- Clutch Engagement
- Troubleshooting and Diagnosis
- SECTION 23 - DRIVE LINES
- Description of Operation
- 70 Series FWD Electronic Control Operation
- 70A Series FWD Electronic Control Operation
- Engaging and Disengaging Four Wheel Drive
- FWD Operating Precautions
- Disassembly and Repair
- SECTION 25 - FRONT MECHANICAL DRIVE
- Specifications
- Special Tools
- Description of Operation
- Troublethooting
- Adjustments
- Front Axle Serviceability
- Disassembly and Repair
- SECTION 27 - REAR DRIVE AXLE
- Specifications
- Special Tools
- Description of Operation
- Differential Carrier
- Final Reduction Drive
- Differential Lock Mechanical Operation
- 70 Series Differential Lock Control System Operation
- 70A Series Differential Lock Control System Operation
- Differential Lock Electrical Circuit Operation
- Differential Lock Hydraulic Circuit Operation
- Front Axle Differential Line
- Troublethooting
- Adjustments
- Disassembly and Repair
- SECTION 31 - POWER TAKE-OFF
- Specifications
- Special Tools
- Description of Operation
- Introduction
- Power Flow-All Models
- Engaging and Disengaging the PTO
- Troublethooting and Diagnosis
- Disassembly and Repair
- PTO Assembly - Removal and Installation
- Upper PTO Input Shaft - Removal and Installation
- PTO Output Shaft and Driven Gear
- PTO Clutch Assembly
- SECTION 33 - BRAKES AND CONTROLS
- Specifications
- Description of Operation
- Boosters
- Master Cylinders
- Rear Axle Brake Assemblies
- Four Wheel Braking
- Troublethooting
- Adjustments
- Bleeding the Brakes
- Brake Pedal Adjustment
- Brake Switch Adjustment
- Disassembly and Repair
- Power Brake Valve
- Inspection
- Reassembly
- Installation of the Brake Lube Kit
- Rear Axle Brakes
- Hydraulic Trailer Brake
- SECTION 35 - HYDRAULIC SYSTEMS
- Specifications
- Description of Operation
- Introduction
- Closed Center Load Sensing
- Standard Flow Hydraulic System
- Megaflow Hydraulic System
- Variable Displacement Pump
- Priority Flow Divider
- Remote Control Valves
- Standard Flow Tractors
- Megaflow Tractor
- Low-pressure Return Circuit
- SECTION 41 - STEERING
- Specifications
- Minimum Hardware Tightening Torgues
- Description of Operation
- Steering System Control Valve
- Steering Control Valve Types
- Steering Cylinders
- Troublethooting
- Removal and Disassembly
- Steering Control Valve
- Parts Inspection
- Assembling the Steering Control Unit
- Installing the Steering Control Valve
- SECTION 44 - TWO-WHEEL DRIVE AXLE AND WHEELS
- Specifications
- Special Tools
- Description of Operation
- Two-Whhel Drive Front Axle
- Troublethooting
- Adjustments
- Front Wheel Track Spacing
- 2WD Axle Adjustment
- Front Wheel Position
- Front Wheel Toe-in
- Disassembly and Repair
- Axle Removal
- Axle Installation
- Axle Center Beam Bushing Replacement
- Axle Extentsion Installation
- Spindle Reassembly
- Front Wheel Bearing
- Steering Cylinder
- Steering Rod
- SECTION 50 - CLIMATE CONTROL
- Introduction
- Specifications
- Tightening Torgues
- Description of Operation
- Troublethooting and Servicing Air Conditioning System
- Primary Troubleshooting and Testing
- Diagnosis Chart
- A/C System Performance Test and Diagnosis Chart
- Component Removal and Installation
- SECTION 55 - ELECTRICAL SYSTEMS
- Specifications
- Description of Operation
- Main Distribution Panel
- Service Diagnostics
- Electronic Instrument Cluser (EIC)
- Central LCDs
- Tractor Performace Monitor
- Automatic Engine Shutdown
- 70 Series Indicator, Warning Lamps and Audible Alarm
- 70A Series Indicator, Warning Lamps and Audible Alarm
- Air Filter Restriction
- Differential Lock
- Cold Start Assist (Ether)
- Cold Start Assist (air inlet)
- Coolant Level Low
- Alternator Charge Indicator
- Intercooler Overheated
- Transmission Pressure Low
- Transmission, Rear Axle / Hydraulic Oil Temperature
- Hydraulic / transmission Filters Restricted
- PTO Engaged
- Programmable Up Shift
- Programmable Down Shift
- 70 Series FWD On
- FWD Auto
- 70A Series FWD On
- FWD Auto
- Four Wheel Drive (FWD) Switch
- Headlight High Beam
- System Status
- Parking Brake
- Bar Graph Displays (LCD)
- Stop and Audible Alarm Conditions
- Central Display (LCD)
- Lowel Selectable Display
- Electronic Instrument Cluster - Tractor Performance Monitor (TPM)
- Automatic Display Information
- Selectable Display Information
- EIC Lighting Display
- Troubleshooting and Diagnostis
- EIC Harness Tool
- SECTION 90 - PLATFORM, CAB, AND BODYWORK
- Description
- Disassembly and Assembly
- Headliner
- Cab Trim
- Seat
- Door Removal
- Rear Window
- Instrument Cluster
- Steering Column
- Right-hand Console
- Procedures For Right-hand Console Upgrade
This electronic guide provides troubleshooting, overhaul, and pressure-testing instructions using recommended procedures and equipment. Following these instructions will ensure the safe, efficient, and timely completion of the service or repair. This comprehensive manual is suitable for professional technicians and novice mechanics alike.
Features of the Manual
Format: PDF
Language: English
Pages: 2106
Compatible with all versions of Windows, Mac, Linux, iPhone, iPad, and Android
This factory file is divided into sections which are subdivided into chapters. Each chapter contains information on general operating principles, detailed inspection, overhaul and, where applicable, specific troubleshooting, special tools, and specifications.
FAQs
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Is this manual available in print?
No, this manual is available only as a digital PDF download.
Can I use this manual on my mobile device?
Yes, the PDF is compatible with all versions of Windows, Mac, and Android devices.
Is the manual printable?
Yes, all pages are printable.
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