New Holland T4.55, T4.65, T4.75 Tractor Pdf Repair Service Manual (p. Nb. 51505313)

New Holland T4.55, T4.65 & T4.75 Tractor PDF Repair Service Manual (P. Nb. 51505313 | Tier 4B (Final) Stage IV)

The New Holland T4.55, T4.65 and T4.75 Tier 4B (Final) Stage IV tractors are designed to provide dependable performance for livestock farms, loader operations, hay production, roadside maintenance and general agricultural work. Their compact dimensions, efficient hydraulic system and durable drivetrain allow operators to perform a wide range of field tasks while maintaining excellent fuel efficiency and productivity. To keep these tractors operating at factory standards, accurate repair information is essential whenever troubleshooting, servicing or major repairs are required.

The New Holland OEM Repair Service Manual (Publication No. 51505313) is the official factory workshop manual developed specifically for Tier 4B (Final) Stage IV models. It provides detailed repair procedures, diagnostic instructions, overhaul specifications, hydraulic schematics, electrical wiring diagrams and factory service data used by authorized New Holland technicians. Whether you're an agricultural mechanic, repair workshop, fleet manager or owner performing advanced repairs, this manual provides the professional information needed to complete repairs correctly the first time.

About the New Holland T4 Series

The New Holland T4 Series combines modern emissions technology with practical utility tractor performance. These tractors are widely used for mowing, baling, loader work, material handling, transport, spraying and general farm maintenance. Their balanced chassis, responsive steering and reliable hydraulic performance make them suitable for year-round agricultural applications while offering excellent maneuverability in confined working environments.

This edition covers the Tier 4B (Final) Stage IV versions of the T4.55, T4.65 and T4.75, ensuring repair procedures match the design updates introduced for these emissions-compliant models.

Machine Technical Specifications

Machine Information	Details
Manufacturer	New Holland Agriculture
Models Covered	T4.55, T4.65 & T4.75
Publication Number	51505313
Machine Series	T4 Utility Tractor Series
Emission Standard	Tier 4B (Final) / Stage IV
Machine Type	Utility Agricultural Tractor
Power Range	Approximately 55–75 HP (Model Dependent)
Drive Options	2WD / Mechanical Front Wheel Drive (MFWD)
Hydraulic System	Open-Center Hydraulic System
Steering	Hydrostatic Power Steering
Rear Hitch	Category II Three-Point Hitch
Applications	Loader Work, Livestock, Hay, Municipal & General Farming

Complete Factory Workshop Coverage

This official repair manual follows the same repair sequence used in New Holland dealerships. Every section includes inspection procedures, troubleshooting charts, service limits, assembly specifications and step-by-step repair instructions supported by detailed illustrations and technical diagrams.

• Complete engine removal and overhaul procedures
• Fuel system inspection and servicing
• Cooling system repairs
• Air intake and exhaust system servicing
• Transmission diagnosis and overhaul
• Clutch servicing and adjustments
• Mechanical Front Wheel Drive (MFWD) repairs
• Front axle disassembly and rebuilding
• Rear axle servicing
• Differential and final drive repairs
• PTO inspection and repair procedures
• Hydraulic pump testing and replacement
• Hydraulic control valve servicing
• Remote hydraulic outlet repairs
• Three-point hitch adjustments
• Brake system diagnosis and repairs
• Hydrostatic steering repairs
• Electrical troubleshooting procedures
• OEM electrical wiring diagrams
• Charging and starting system testing
• Instrument panel diagnostics
• Operator platform and cab servicing
• Factory torque specifications
• Special service tools and workshop procedures

OEM Manual Technical Specifications

Manual Information	Details
Manual Type	OEM Factory Repair Service Manual
Publication Number	51505313
Language	English
File Format	PDF
Emission Coverage	Tier 4B (Final) / Stage IV
Bookmarks	Yes
Fully Searchable	Yes
Printable	Yes
Electrical Wiring Diagrams	Included
Hydraulic Schematics	Included
Diagnostic Procedures	Included
Torque Specifications	Included
Compatible Devices	Windows, macOS, Linux, Android & iOS

Why Choose the Official OEM Manual?

Modern Tier 4B tractors feature advanced hydraulic, electrical and emissions-related systems that require accurate factory repair procedures. This genuine OEM manual provides the same information used by authorized New Holland service technicians, allowing repairs to be completed according to manufacturer standards without unnecessary guesswork.

Detailed exploded illustrations, diagnostic flowcharts, service limits, inspection measurements, torque specifications and wiring diagrams make even complex repairs easier to perform while reducing downtime and avoiding costly mistakes.

Who Should Use This Manual?

• New Holland dealership technicians
• Agricultural equipment repair shops
• Independent tractor mechanics
• Farm maintenance departments
• Equipment fleet managers
• Agricultural contractors
• Heavy equipment technicians
• Experienced tractor owners performing advanced repairs

Benefits of Using This Factory Manual

• Perform repairs using official OEM procedures
• Reduce troubleshooting time
• Improve diagnostic accuracy
• Avoid unnecessary component replacement
• Access complete hydraulic and electrical information
• Use factory torque specifications during assembly
• Maintain tractor reliability and long-term performance
• Complete repairs with confidence using dealership-level information

Instant PDF Download

The manual is supplied in PDF format for immediate access after purchase. It can be viewed on desktop computers, laptops, tablets and smartphones, allowing technicians to quickly search repair procedures, wiring diagrams and specifications directly from the workshop or field.

Frequently Asked Questions

Which tractor models are covered?

This manual covers the New Holland T4.55, T4.65 and T4.75 utility tractors.

What emission standard does this manual support?

It is specifically written for Tier 4B (Final) Stage IV tractors.

Is this an official OEM workshop manual?

Yes. This is the genuine New Holland Factory Repair Service Manual with Publication Number 51505313.

Are electrical wiring diagrams included?

Yes. Complete factory electrical wiring diagrams and electrical troubleshooting procedures are included.

Does the manual cover hydraulic repairs?

Yes. Hydraulic pump servicing, control valve repairs, hitch adjustments, pressure testing and hydraulic diagnostics are fully covered.

Can I rebuild the transmission using this manual?

Yes. The manual contains detailed transmission disassembly, inspection, assembly and testing procedures.

Who is this manual intended for?

It is ideal for dealership technicians, agricultural mechanics, repair workshops, fleet maintenance teams and experienced tractor owners.

Is the PDF searchable and printable?

Yes. The manual is fully searchable, bookmarked and printable, making it convenient for workshop and field use.