Repair Manual For New Holland 70, 70A Tractor. Illustrations, instructions, diagrams for step by step remove and install, assembly and disassembly, service, inspection, repair, troubleshooting, tune-up.
Format: PDF
Language: English
Pages: 2105
Bookmarks: Yes
Searchable: Yes
Number:
Wiring Diagrams: Yes
Hydraulic Diagrams: Yes
Model
New Holland 70, 70A
Contents
- – General Information
Contents
Foreword
Precautionary Statements
Safety Precautions
Health And Safety Precautions
Tractor Identification
Service Techniques
Sealer Specifications
Hardware Torque Values
Lubrication
Recommended Lubricants And Coolants - – Engine
Torque 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
Troubleshooting
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
Engine Front Cover And Timing Gear
Oil Pan
Oil Filter Support Assembly
Crankshaft
Camshaft
Engine Timing Gears
Engine Compression Test
Test Procedure
Test Reading
Test Conclusion
Description Of Operation
Cooling System
Troubleshooting
Disassembly And Repair
Radiator
Thermostat
Temperature Warning Sender
Fan Blade
Viscous Clutch Assembly
Fan Belt Tensioner
Idler Pulley
Waterpump
Air Cleaner
Turbocharger
Intercooler
Troubleshooting
Intercooler Leak Test
Disassembly And Repair
Air Cleaner
Turbocharger
Intercooler
Testing And Diagnosis
Low-Pressure Fuel System
Fuel Tank Valve(S)
Filter Inlet And Outlet Pressure Tests
High-Pressure Fuel System
Injection Timing Check
Fuel Injector Nozzle Check, Engine Running
Injector Assembly Bench Testing
Preliminary Setup Procedure
Perform Opening Pressure Test
Perform Nozzle Seat Leakage Test
Perform Chatter And Spray Pattern Test
Surging
Fuel Shutoff Diagnosis
Shutoff Solenoid Specifications
Preliminary Checks
Checking Electrical Feed
Adjustments
Bleeding The Fuel System
Adjustment Of Foot And Hand Throttle Cables
Adjustment Of High Idle Speed
Adjustment Of Low Idle And Antisurge
Removal And Installation
Fuel Lift Pump
Fuel Shutoff Solenoid
Fuel Injection Pump
Fuel Injection Lines
Low-Pressure Fuel Injection Lines
High-Pressure Fuel Lines
Injector Leak-Off Line
Fuel Filter
Fuel Filter Manifold
Injection Nozzles
Disassembly And Repair
Engine Removal
Engine Installation
Lower Tank Removal
Lower Tank Installation
Top Tank Removal
Top Tank Installation - – Transmission
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
Transmission Components
Clutches
Speed Clutches
Directional Clutches
Clutch Engagement
Troubleshooting And Diagnosis
Engine And Side Rail Separation From The Transmission
Four-Wheel Drive Shaft Removal (If Equipped)
Engine And Side Rail Reassembly
Rear Axle To Transmission Separation
Reassembly
Minimum Hardware Tightening Torques
Rear Housing And Directional Clutches – Removal
Front Housing And Speed Clutches – Removal
Main Input Gear Assembly – Removal
Speed Clutches – Disassembly
Speed Clutches – Inspection
Directional Clutches – Disassembly
Directional Clutches – Inspection And Overhaul
Speed Clutches And Directional Clutches – Reassembly
Main Input Gear And Oil Seal – Disassembly Inspection, Overhaul And Reassemble
Two Gear Clusters In Front And Rear Housing -Disassembly, Inspection And Reassembly
Front And Rear Housings And Center Section -Inspection And Overhaul
Torque Limiting Clutch And Sprung Damper Hub Drive Assembly – Removal, Inspection And Replacement
Reassembly
Speed Clutches And Front Housing
Directional Clutches And Rear Housing
Transmission Shimming
Front Housing Shimming
Rear Housing Shimming
Shimming The Output Shaft
Creeper Gear
Creeper Gear Repair
Installation
Clutch Valve Operation
Modulator Valve Operation
Electro-Hydraulic Pilot Line
Troubleshooting And Diagnosis
70/70A Series Transmission Test Sheet
Electrical7Electronic System Checks
70/70A Series Transmission Test Sheet Hydraulic System Checks
Clutch Apply Pressure Chart
Pressure Testing And Adjustments
Clutch Apply Circuit Pressure Testing
Transmission Pressure Checklist
Transmission Programming
Programming The Programmable Upshift, Downshift
Programming Reverse Gear Ratios
Transmission Calibration
Check Powershift Transmission Clutch Calibration
Calibration Review
Calibrate Fl Directional Clutch
Calibrate F2 Directional Clutch
Calibrate Reverse Directional Clutch
Calibration Mode
Calibration Of Shift Constant
Solenoid And Valve Assembly
Speed And Directional Clutch Circuit Valves
Modulator Valves
Regulator Valve
Lubrication And Cooling Circuit Relief Valve - – Drive Lines
70 Series Fwd Electric Control Operation
70A Series Fwd Electric Control Operation
Engaging And Disengaging Four Wheel Drive
Fwd Operating Precautions - – Front mechanical Drive
Wheel Toe-In (Fwd)
Fwd Steering Stops
Hub Bearing Preload Adjustment
Checking For Correct Pinion To Ring Gear Tooth Contact
Wrong Tooth Contact Pattern
Swivel Pin Bearing Adjustment
Fwd Ratios
Four Wheel Drive Tire Vs Gear Ratios
Four-Wheel Drive Lead Factor
Front Axle
Steering Cylinders
Planetary Reduction
Hub
Swivel Housing
Center Housing Swivel Bearing
Driveshaft
Outer Yoke
Differential
Crown Wheel To Pinion Backlash Adjustment
Description Of Operation
Supersteer Linkage Removal
Removal Of Rear Support Assembly And Spherical Ball Bushing
Supersteer Linkage Adjustment
Steering Cylinders Group Disassembly
Steering Cylinders Group Assembly
Final Drive Removal
Wheel Hub Disassembly
Wheel Hub Assembly
Swivel Housing Removal
Swivel Housing Assembly
Axle Housing Swivel Bearing
Differential Support Group Disassembly
Differential Support Group Assembly
Input Flange End Play Adjustment
Limited Slip Differential Removal
Limited Slip Pinion Disassembly
Limited Slip Differential Disassembly
Limited Slip Differential Assembly
Lockable Differential Removal
Lockable Pinion Disassembly
Lockable Differential Disassembly
Lockable Differential Assembly
Adjustment – Pinion Shaft
Differential – Adjustments
Pinion To Ring Gear Tooth Contact Adjustment
Wrong Tooth Contact Pattern
Swivel Housing Bearing Adjustment
Standard Steer/Toe-In Adjustment
Supersteer Linkage Adjustment
Potentiometer Removal
Potentiometer Installation
Potentiometer Calibration
Tractor Features Configuration
Steering Angle Sensor Operation/Calibration - – Rear Drive Axle
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 Circurt Operation
Differential Lock Hydraulic Circurt Operation
Front Axle Differential Line - – Powe Take-Off
Power Flow – All Models
Engaging And Disengaging The Pto
Troubleshooting And Diagnosis
Disassembly And Repair
Pto Assembly – Removal And Installation
Upper Pto Input Shaft – Removal And Installation
Pto Output Shaft And Driven Gear – Overhaul
Pto Clutch Assembly – Overhaul
Engaging And Disengaging The Pto
Pto Hydraulic System Operation
Pto Control Valve Operation
Lubrication Oil
Pto Electrical System Operation
Troubleshooting
Pto Will Not Engage
Pto Will Not Disengage
Pto Clutch Slips Under Load
Pto Shaft Continually Turns Slowly With Engine Running When Pto Is Turned Off
Pto Retaining Ring Is Difficult To Replace
Adjustments
Pto Clutch Brake Band
Disassembly And Repair
Pto Solenoid
Pto Control Valve Assembly
Pto System Pressure Testing
Introduction
Pre-Test Preparation
Pilot Oil Circuit Pressure Test
Clutch Apply Circuit Pressure Test
Pto Lubrication Circuit Pressure Test - – Brakes And Controls
Boosters
Master Cylinders
Rear Axle Brake Assemblies
Four Wheel Braking
Troubleshooting
Adjustments
Bleeding The Brakes
Brake Pedal Adjustment
Brake Switch Adjustment
Disassembly And Repair
Power Brake Valve – Overhaul
Inspection
Reassembly
Installation Of The Brake Lube ???
Rear Axle Brakes – Overhaul
General Air Brake Safety
General Maintenance Instructions
Description Of Operation
System Operation
Air Compressor
Unloader Valve
Reservoir Tank
Right Hand Brake Lamp Switch
Solenoid Valve
Dual Control Valve
Single Control Valve
Air Pressure Switch
Trailer Brake Solenoid Power
Disassembly And Repair
Air Compressor
Air Compressor Lubrication Supply Line
Air Compressor Lubrication Return Line
Air Pressure Supply Line
Unloader Valve/Silencer
Reservoir
Pressure Switch
Single Control Valve
Dual Control Valve
Solenoid Control Valve
Coupler Connectors
Trailer Brake Light
Low-Pressure Alarm
Air Pressure Switch Power
Harness Removal And Installation
Cab Trailer Wiring Harness
Rear Trailer Harness - – Hydraulic System
Closed Center Load Sensing (Ccls) Pump And Remote Valve System
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
Hydraulic Pump Drive Assembly
Tandem Gear Pump Assembly
Tandem Gear Pump Fluid Supply
Oil Filters
Oil Reservoir
Oil Cooler And Bypass Valve
Low-Pressure Control Hydraulic Schematic
Priority Flow Divider
Remote Valve Assembly
Remote Valve Section (Series Logic)
Remote Valve Section (Parallel Logic)
Control Cables
Return Tube
Primary And Secondary Shuttles
Order Of Priority Operation
Electro-Hydraulic Remote Valves
Control Switches
Flow Control Adjustment
Description Of Operation
Flow Control Operation
Order Of Priority Operation
Coupler Mounting Block And Coupler Repair
Three-Point
Three-Point External Linkage Components
Quick
Troubleshooting
Disassembly And Repair
Rockshaft Removal
Seal And Bushing Replacement
Rockshaft Installation
Lift Cylinder Removal
Closed Center Load Sensing (Ccls) Hydraulic Brake System
Operation Of The European Trailer Brake System
Operation Of The 10 Bar (147 Psi) Trailer Brake System (Italian Market Only)
Trailer Brake Valve Pilot Head Operation
Trailer Brake Valve Operation
Trailer Brake Valve
Specifications
Torques
Special Tools
Description
Trailer Brake Valve Removal
Trailer Brake Valve Disassembly
Inspection And Repair
Re-Assembly And Installation
Bleeding The Brakes
Bleeding Rear Axle Brakes
Trailer Brake Valve Bleed Screws
Trailer Brake Pressure Test
Low-Pressure System Testing
Testing Low-Pressure System
High-Pressure System Testing
Axial Piston Pump
Steering Flow Divider Relief Pressure
Steering Flow Divider Flow Test
Remote Valve
Detent Release Operation
Timed Detent Release Operation
Three-Point Hitch
Three-Point Hitch And Remote Valve Troubleshooting Aid Tool
Calibration Of The Elect Ro Hydraulic Control System (Ehr)
Functions Of The Pdt
Setup
Start Calibration
Set Defaults
Deadband
Calibration Of The Pod Levers
Set Currents
Setting The Flow Control Potentiometer
Changing The Lever Deadband
Diagnostics Of The Elect Ro Hydraulic Remote Valve Control System
Solenoid Errors
Lever Errors
System Errors
Other Screens
Troubleshooting Elect Ro Hydraulic Self Test
Troubleshooting Hydraulic System
Hydraulic System Quick Checks - – Steering
Minimum Hardware Tightening Torques
Description Of Operation
Steering System Control Valve
Steering Control Valve Types
Steering Cylinders
Troubleshooting
Removal And Disassembly
Steering Control Valve
Parts Inspection
Assembling The Steering Control Untt
Installing The Steering Control Valve - – Two Wheel Drive Axle And Wheels
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 Extension Installation
Spindle Removal And Disassembly
Axle Extension / Spindle Bushing Replacement
Spindle Reassembly
Front Wheel Bearing
Steering Cylinder
Center Steering Arm
Steering Rod
Four Wheel Drive (Fwd) Front Axle Track Spacing
Four Wheel Drive Track Adjustment
Front Wheel Positions - – Climate Control
- – Electrical Systems
Main Distribution Panel
Service Diagnostics
Electronic Instrument Cluster (Eic)
Central Lcds
Tractor Performance 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) Bsn D414635
Cold Start Assist (Air Inlet) Asn D414634
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 (If Equipped)
Headlight High Beam
System Status
Parking Brake
Bar Graph Displays (Lcd)
Stop And Audible Alarm Conditions
Central Display (Lcd)
Lower Selectable Display
Electronic Instrument Cluster – Tractor
Performance Monitor (Tpm)
Automatic Display Information
Selectable Display Information
Eic Lighting Display
Troubleshooting And Diagnostics
Eic Harness Tool
70/70? Series Diagnostics Procedure Overview And Checklist
System Grounds
70 Series Electrical System Grounds
Troubleshooting Checklist
Special Tool For Testing Electrical Systems
Electrical Test Procedures
Batteries
Cold Start System – Ether Operation (Bsn D414644)
Ether Cold-Start Circuit Troubleshooting
Cold Start System – Air Inlet Heater (Asn D414643)
Air Inlet Heater Troubleshooting
Fuel Stop Solenoid And Override System
Shutdown Override
Troubleshooting The Cranking Circuit
Disassembly And Repair
Cleaning
Armature Servicing
Field Coil Checks
Field Coil Removal
Solenoid Checks
Three-Terminal Solenoid
Reassembly
Lubrication
Pinion Clearance
Multi-Function Switch
Hazard Warning Lights
Light Operation
Work Lights
Auxiliary Power
Auxiliary Control Mounting Locations
Auxiliary Control Cable Routing
Radio Installation
Troubleshooting
Fuse And Relay Identification
Circuit Diagrams
Brake lights
Head Lights
Hazard Warning Lights
70 Series Turn Signals
70A Series Turn Signals
Taillights
Work Lights
Interior Lights
Auxiliary Power Sockets
70 Series Seven-Pin Trailer Connector
70A Series Seven-Pin Trailer Connector
Disassembly And Repair
Replace Headlight Assembly Bulbs
Replace Work Sealed Beam Units
Replace Roof Mounted Turn Signal Bulbs
Replace The Fender Mounted Turn Signal And Stop Light/Parking Light Bulbs
Electronic Instrument Cluster (Eic) Bulb Replacement
Harness Repair
Connector Repair And Replacement
Main Harness Routing
Electrical Operation
Electro-Hydraulic Remote Valve Switch Control Pod Locations
The Switch Control Pod Components
Remote Valve Solenoid Connections
Programmable Controller Location
Switch Valve Color-Coding
Electro-Hydraulic Control Switch Function Positions
Electro-Hydraulic Flow Control Knob
Manual Programmable Operation Switch
Electro-Hydraulic Remote Valve Engagement Switch
Fuse Panel Location
Fuse Panel Access
Fuse Location
Control Relays
Main Fuse Panel Location
Main Fuse Panel Access
Main Fuses
Manual Operation
Programmable Mode
Flow Control
Ehr Electrical Test Procedures
Continuity Test – Short To Ground
Continuity Test – Check For Open Circuits
Continuity Test – Check For Open Circuits
Voltage Measurement Or Short To Positive Supply Volts
Removal Of The Elect Ro-Hydraulic Remote Control Valve Switch Pod Assembly
Reassemble Of The Elect Ro-Hydraulic Remote Control Valve Switch Pod Assembly
Removal Of The Elect Ro-Hydraulic Remote Control Valve Programmable Controller
Installation Of The Elect Ro-Hydraulic Remote Control Valve Programmable Controller - – Platform, Cab And Bodywork
Cab Trim
Seat
Door Removal
Rear Window
Instrument Cluster
Steering Column
Right-Hand Console
Procedures For Right-Hand Console Upgrade
What you get
You will receive PDF file with high-quality manual on your email immediately after the payment.
Reviews
There are no reviews yet