This manual includes information on how to repair, service and maintain the machine on our own without wasting time in service Centre. It consists of step-by-step instructions with diagrams and illustrations.

Topics in the New Holland TT55, TT75 Tractor Service Manual:

GENERAL INFORMATION

ENGINE

• Specifications
• Torque Data
• Engine Special Tools
• Engine Sectional Views
• Engine Removal
• Splitting the tractor
• Engine Reinstallation
• Engine Disassembly
• Engine Assembly
• Checks, Dimensions and Repairs
• Cylinder Block and Cylinder Liners
• Crankshaft, Main Bearings and Flywheel
• Connecting Rod
• Pistons
• Camshaft, Tappets and Valves
• Cylinder Head
• Valve Guide Replacement
• Valve Seat In Cylinder Head Refacing
• Injector Sleeve Replacement
• Rotating Counterweight Dynamic Balancer
• Engine Lubrication System Overhaul
• Crankshaft Front Oil Seal Removal/Installation
• Coolant System Overhaul
• Fuel System Overhaul
• Valve Clearance Adjustment
• Engine Testing
• Air Cleaning System

CLUTCH

• Specifications
• Clutch Assembly Removal/Installation
• Clutch Overhaul
• Transmission Clutch Pedal Free-Travel and Adjustment
• Adjusting PTO Clutch Linkage

FRONT TRANSMISSION

• Specifications
• Transmission Removal and Installation
• Inspecting the Transmission
• Assembling the Transmission

FOUR WHEEL DRIVE TRANSFER BOX

• Transfer Box and Axle Shaft

FOUR WHEEL DRIVE (FWD) FRONT AXLE

• Four-wheel Drive Front Axle Specifications
• Special Tools
• Four-wheel Drive Front Axle Special Tools
• Four-wheel Drive Front Axle – Description and Operation
• Four-wheel Drive Front Axle Repair
• Complete Front Axle
• Steering Knuckle Pins and Bearings
• Stub Axle Adjustment
• Bevel Drive Adjustments
• Front Axle Differential
• Checking the Alignment of Steering-Drive Wheels

REAR AXLE AND TRANSMISSION

• Special Tools
• Rear Transmission Housing Removal/Installation
• Bevel Drive and Differential Removal
• Reassembling the Bevel Drive and Differential
• Final Drive
• Final Drive Removal
• Final Drive Disassembly (Cover)
• Final Drive Disassembly (Housing)
• Final Drive Assembly

2WD FRONT AXLE

• 2WD Front Axle and Steering Specifications
• Two-Wheel Drive Front Axle and Steering Special Tools
• Front Axle Repair
• Front Axle Removal and Installation
• Steering Knuckle Overhaul
• Axle Checks
• Determining Front Wheel Toe In/Toe Out

POWER TAKE-OFF (PTO)

• Specifications
• PTO Operation
• Power Take-off
• PTO Removal and Installation

BRAKE SYSTEM

• Specifications
• Description and Operation
• Brake Pedal Free-Travel/Adjustment
• Parking Brake T-Handle Free-Travel/Adjustment
• Brake Disassembly

HYDRAULIC SYSTEM

• Hydraulic Lift Specifications
• Special Tools
• Hydraulic System Precautions
• Description and Operation
• Remote Control Valves
• Remote Valve Control Levers
• Quick-fit Couplers
• Mid-mount Coupler Relocation Kit [Optional]
• Switching Between Single and Double-acting Cylinders
• Hydraulic Power Lift (HPL)
• Hydraulic Lift Main Control Valve Settings
• Hydraulic System Operation
• Hydraulic Lift Disassembly
• Control Valve Disassembly
• Control Valve Assembly
• Hydraulic Lift Assembly
• Lift Adjustment on Bench
• Lift Adjustment and Checks on the Tractor
• Relief Valve and Cylinder Safety Valve Checks
• Oil Filter
• Implement Attachment
• Remote Control Valves
• Dual Remote Valve Description and Operation
• Double Acting Valve with Detent Float
• Dual Remote Valve System Tests
• Hydraulic System with One Remote Valve Installed
• Hydraulic System with Two Remote Valves Installed
• Hydraulic System with Three Remote Valves Installed

STEERING SYSTEM

• Steering System Specifications
• Description and Operation
• Steering System Testing and Adjustment
• Determining Front Wheel Toe In/Toe Out
• Hydrostatic Steering Motor Overhaul
• Front Axle Steering Cylinders
• Steering Cylinder – 2WD
• Steering Cylinder – 4WD

ELECTRICAL SYSTEM (INCLUDES WIRING DIAGRAMS)

• Fault Finding
• Precautionary Statements
• Electrical System — Description and Operation
• Wire Harnesses
• Component Location
• Instrument Panel
• Control Switches
• Lamps
• Fuses and Relays
• Starter Specifications
• Starter Description and Operation
• Starting System Testing
• Resistance In Ignition System Circuit (Voltage Drop)
• Positive Battery Cable
• Starter Motor Grounding
• Battery Ground Cable
• Starter Motor Removal and Re-installation
• Servicing the Starting Motor
• Armature Shaft End Play
• Starter Motor Test Without Load
• Bench Tests
• Alternator Specifications
• System Testing and Troubleshooting
• Preliminary Tests
• Alternator Component Tests
• Removal and Servicing
• Rotor and Regulator Field Circuit Test
• Battery
• Wiring Diagrams

BODYWORK

• Engine Hood Panel Assembly
• Rear Wheel Fenders
• Roll-over Protection (ROPS) Bar
• Battery Removal
• Installation

Covers: New Holland TT55, TT75 Tractor

Please email at ireneroberson9@gmail.com and we will provide you with the any manual you need right away. We are constantly updating the site with new stock but we have much more than available in the website.