New Holland TN55 TN65 TN70 TN75 Repair Manual

Complete Factory Service Repair Manual Ford New Holland TN55 TN65 TN70 TN75. Detailed Step by Step Instructions, diagrams, illustrations make easy any repair, Overhaul, Disassembly and Assembly, Testing, Adjustment, Replacement and Change, Inspection and Adjustment, etc.

Updated 2020.08: Added 16 pages; Clear Schematics

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MODELS Covered

New Holland

TN55
TN65
TN70
TN75

SECTIONS covered

General
General Instructions
Important Notice
Battery
Shimming
Rotating Shaft Seals
O-Ring Seals
Sealing Compounds
Bearings
Spring Pins
Spare Parts
Tools
Note
Moving The Tractor With The Battery Removed
Safety Regulations
Accident Prevention
Safety Regulations
General Guidelines
Start Up
Engine
Electrical Systems
Hydraulic Systems
Wheels And Tires
Removal And Re-Fitting
Consumables
Engine
Contents
General Specifications
Data
Torque Settings
Tools
Cross-Sectional Views
Lubrication And Cooling System Diagrams
Troubleshooting
Engine Removal And Installation
Compression Test
Engine Removal And Assembly
Coolant Pump And Alternator Drive Belt – Tension Adjustment
Valve Guides – Replacement
Injector Holder Casing – Replacement
Front Engine Oil Seal – Removal And Installation
Valve Clearance Adjustment
Fuel Tank – Removal And Installation
Engine Injectors – Removal And Installation
Bosch Injection Pump – Removal, Installation, Timing And Air Bleed Check
Exhaust Pipe – Removal And Installation
Coolant Pump – Removal And Installation With Radiator Removed
Coolant Pump – Overhaul
Thermostat – Removal And Installation
Radiator – Removal And Installation
Clutch
Contents
General Specifications
Torque Settings
Tools
Cross-Sectional Views
Troubleshooting
Clutch – Removal And Installation
Dual Disk Clutch – Test Bench Overhaul
Single Disk Clutch (Version With Power Shuttle) – Test Bench Overhaul
Clutch Adjustments
Transmissions
Chapter 1
Contents
Main Data
Torque Settings
Special Tools
Cross-Sectional Views
Description And Operation
Troubleshooting
Rear Transmission Gearbox – Removal And Installation
Rear Transmission Gearbox – Disassembly And Assembly
Rear Transmission Gearbox – Driving And Driven Shafts Clearance
Adjustments
Gearbox Control Lever – Removal And Installation
Range Gear Control Lever – Removal And Installation
Chapter 2
Contents
Main Data
Torque Values
Special Tools
Cross-Sectional Views
Description And Operation
Transmission Gearbox – Disassembly And Assembly
Power Shuttle Control Valve – Disassembly And Assembly
A + B Clutch Valve Solenoids – Removal And Installation
Dump Valve Solenoid – Removal And Installation
Clutch Casing – Disassembly And Assembly
Description Of Systems (Ecm And Cdu)
Automatic Self-Diagnosis (Ecm)
Ecm – First Start-Up
Diagnosis During Operation
Calibration And Diagnostics Unit (Cdu)
Power Shuttle Fault Code Priority
Fault Codes Indication
Calibration And Diagnostic Unit Use
Hh Menu Access
Hi – Clutches A And B Calibration
H2 – Clutches A And B Calibration Values Display)
H3 – System Configuration
H4 – Power Shuttle Hardware And Software Revision Levels
H5 – Control Switch Diagnosis
H6 – Clutch (A) Fill Time
H7- Clutch (B) Fill Time
H8 – Erasure Of Data Stored In The Non-Volatile Memory (Nvm)
H9 – Voltmeter Functions
Ha – Clutch Pedal Potentiometer And Status Switch
Clutch Pedal Potentiometer Replacement
Hc – Transmission Oil Temperature Sender
Hd – Hi/Lo Synchronizer Operation (Not Used In Standard)
He – Gear Change Adjustments
Hf-Stored Error Codes
Troubleshooting Fault Codes
Power Shuttle Electronic Control Unit Input/Output Wiring Diagram (8 + 8 And 16 + 16)
Drive Lines
Contents
Main Data
Torque Settings
Tools
Cross-Sectional Views
Description, Operation And Hydraulic Diagrams
Troubleshooting
Transmission Shafts And Guard – Disassembly And Assembly
Drive Gear Housing Assembly – Removal And Installation
Drive Gear Housing Assembly Removed – Disassembly And Assembly
Front Axle
Mechanical Transmission
Contents
Main Data
Torque Settings
Tools
Cross-Sectional Views
Description And Operation
Front Axle – Removal And Installation
Front Epicyclic Final Drive – Disassembly And Assembly
Steering Knuckle Bearing Pins – Replacement
Wheel Hubs And Steering Knuckle Pins And Bearings – Removal, Replacement And Installation
Bevel Drive And Front Axle Differential Axle Housing – Disassembly And Assembly
Front Axle Bevel Drive – Overhaul
Bevel Drive – Adjustments
Front Axle Differential – Overhaul
Front Axle Differential With Um-Slip Unit – Overhaul
Leading Drive Wheels Toe-In Check
Rear Mechanical Transmission
Contents
Main Data
Torque Settings
Tools
Cross-Sectional Views
Description And Operation
Troubleshooting
Rear Transmission Gearbox – Removal And Installation
Differential Lock Engagement Sleeve – Adjustment
Final Drive Housing Assembly – Removal And Installation
Drive Wheel Shaft – Removal And Installation
Epicyclic Final Drive – Removal And Installation
Mechanical Power Take-Off
Contents
Main Data
Tools
Tightening Torque
Cross-Sectional Views
Description And Operation
Troubleshooting
Mechanical Power Take Off
Removal And Installation
Braking System
ContentsMain Data
Torque Settings
Cross-Sectional Views
Tools
Description And Operation
Troubleshooting
Right Or Left Hand Brake – Removal And Installation
Braking System Hydraulic Pump – Removal And Installation
Brake Hydraulic System – Air Bleeding
Parking Brake, Brake Disks – Removal And Installation
Handbrake Control – Travel Adjustment
Hydraulic System
Chapter 1
Contents
Main Data
Torque Settings
Tools
Cross-Sectional Views
Description And Operation
Troubleshooting
Lift Internal Controls – Disassembly And Assembly
Lift Adjustments
Tie-Rod Adjustments
Various Adjustments
Lift Cylinder And Arms Shaft – Disassembly And Assembly
Lift Control Valve (With Control Valve Removed) Disassembly And Assembly
Lift Pressure Relief Valve – Removal And Installation
Lift Pressure Relief Valve (Setting)Chapter 2
Contents
Main Data
Tools
Torque Settings
Cross-Sectional Views
Description And Operation
Troubleshooting – See Lift – Chapter 1
Auxiliary Control Valves – Disassembly And Assembly (With The Unit Removed)
Section 35 – Chapter 3
Contents
Description And Operation
Cross-Sectional Views
Troubleshooting
Trailer Brake Valve – Removal And InstallationChapter 4
Contents
Main Data
Torque Settings
Description And Operation
Troubleshooting – See Lift-Chapter 1
Lift Circuit Hydraulic Pump – Disassembly And Assembly (With Unit Removed)
Steering
Chapter 1
Contents
Main Data
Torque Settings
Tools
Operation
Components
Troubleshooting
Hydrostatic Steering Wheel – Replacement
Hydrostatic Steering Control Valve – Removal And Installation
Hydrostatic Steering Control Valve (Removed) – Disassembly And Assembly
Hydrostatic Steering Control Valve – Bench TestingChapter 2
Contents
Main Data
Torque Settings
Description And Operation
Troubleshooting – See Lift-Chapter 1 Section 35
Power Steering Oil Pump – Disassembly And Assembly (With Unit Removed)
Axles And WheelsContents
Main Data
Cross-Sectional Views
Torque Settings
Tools
Troubleshooting
Front Axle Hub – Disassembly And Assembly
Front Axle – Removal And Installation
Stub Axle – Overhaul
Checking The Alignment Of The Leading Wheels
Electrical SystemChapter 1
Contents
Analog Instruments
Controls
Transmitters, Sensors And SwitchesChapter 2
Contents
Technical Information
Torque Settings
Description And Operation
Troubleshooting
System Testing
Starter Motor – Removal And Installation
Starter Motor – Disassembly And Assembly
Bench TestsChapter 3
Contents
Technical Information
Torque Settings
Description And Operation
System Testing And Troubleshooting
Alternator – Removal And Installation
Alternator, Removed – Disassembly And Assembly
Chapter 4
Contents
Technical Information
Description And Operation
Battery – Removal And Installation
Battery Checking And Maintenance
Battery Charging
Battery Problems – Frequent Causes

Chapter 5
Contents
Fuses And Relays (Model With Cab)
Symbols Used In Electrical Circuits
Electric Wire Colour Code
General Diagram – Central Part (Electrohydraulic 4 Wd Version. Iso Version)
General Diagram – Central Part (Mechanical 4 Wd Version. Iso Version)
General Diagram – Front Part (Iso Version)
General Diagram – Rear Part (Iso Version)
Lighting Circuit Diagram – (Iso Version)
Electrohydraulic 4 Wd And Brake Lights Circuit Diagram
Mechanical 4 Wd And Brake Lights Circuit Diagram
Front Corner Lights And Rear Work Lights Circuit Diagram
General Diagram – Central Part (Power Shuttle Version. Naso Version)
General Diagram – Central Part (Standard Version Naso Version)
General Diagram – Front Part (Naso Version)
General Diagram – Rear Part (Naso Version)
Lighting Circuit Diagram (Naso Version)

Chapter 6
Contents
Electrical Circuit Components
Location Of Fuses And Relays (Mechanical Shuttle And Power Shuttle Versions)
Symbols Used In Electrical Circuits
Electric Wire Color Code
How To Use The Unear Wiring Diagrams
Electrical Circuits – (Mechanical Shuttle And Power Shuttle Versions)
Ground Location Points – (Mechanical Shuttle And Power Shuttle Versions)
Front Part Circuit – (Mechanical Shuttle And Power Shuttle Versions)
Starting Circuit – (Mechanical Shuttle Version)
Starting Circuit – (Power Shuttle Version)
Operator Safety Circuit Description And Operation
Operator Safety Circuit – (Mechanical Shuttle Version)
Operator Safety Circuit – (Power Shuttle Version)
Front Lights Circuit – (Mechanical Shuttle And Power Shuttle Versions)
Lighting Circuit – (Mechanical Shuttle Version)
Lighting Circuit – (Power Shuttle Version)
4 Wd And Brake Lights Circuit – (Mechanical Shuttle Version)
4 Wd And Brake Lights Circuit – (Power Shuttle Version)
Transmission Circuit – (Mechanical Shuttle Version)
Transmission Circuit – (Power Shuttle Version)
Power Shuttle Electronic Control Unit Input/Output Wiring Diagram

Chapter 7
Contents
Multi-Function Instrument Panel – Removal And Installation
Electronic Control Module (Ecm) – Replacement
Fuse Box – Replacement
Fuses And Relays – Replacement

Platform, Cab, BodyworkContents
Hood Opening – Removal And Installation
Protective Grill – Removal And Installation
Hood Guard – Removal And Installation
Dashboard – Removal And Installation
Rops (Roll Over Protection Structure) – Removal And Installation
Right Or Left-Hand Mudguard – Removal And Installation
Rear Guard – Replacement
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