New Holland TT55 2WD, TT55 4WD, TT65 2WD, TT65 4WD, TT75 2WD, TT75 4WD Tractor Pdf Repair Service Manual (P. Nb. 47899732)

New Holland TT55, TT65 & TT75 Tier 3 (2WD / 4WD) Tractor PDF Repair Service Manual (P.N. 47899732)

The Tier 3 versions of the New Holland TT55, TT65 and TT75 were developed to deliver higher productivity while meeting stricter engine emission requirements without sacrificing the durability expected from the TT Series. These tractors are widely used for deep cultivation, rotavation, hay production, loader operations, fertilizer spreading and transport duties. Their straightforward mechanical design, heavy-duty drivetrain and independent PTO make them practical machines for both commercial farms and independent operators. This OEM Factory Repair Service Manual contains the official workshop procedures used to inspect, diagnose and rebuild every major tractor system from the engine to the electrical circuits.

Machine Profile

Factory Repair Procedures Included

• Engine crankcase inspection, overhaul and precision reassembly.
• Cylinder head servicing, valve train adjustment and timing procedures.
• Fuel injection system diagnostics and turbocharger servicing.
• Clutch housing inspection and complete clutch replacement.
• Transmission gear, synchronizer and shift mechanism repairs.
• Mechanical front-wheel-drive system diagnosis and transfer components.
• Front axle pivot, reduction hubs and differential rebuilding.
• Rear axle housing, final drive and differential backlash adjustments.
• PTO clutch assemblies, shafts and engagement mechanism repairs.
• Hydraulic pump testing, lift cylinder overhaul and remote valve servicing.
• Brake control adjustments and hydrostatic steering repairs.
• Electrical system troubleshooting with OEM wiring diagrams, charging circuits and starting system diagnostics.
• Factory wear limits, torque specifications and special tool references.

Manual Technical Specifications

Manual Organization

The service information is arranged by tractor system, allowing technicians to move directly to the required repair section. Major chapters include the engine, clutch, transmission, 4WD system, front axle, rear axle, PTO, brakes and controls, hydraulic systems, steering, wheels, electrical systems and a dedicated special tool index. This logical structure helps reduce diagnostic time and ensures repairs follow OEM specifications.

Frequently Asked Questions

Which tractors are covered by this manual?

The manual covers New Holland TT55, TT65 and TT75 Tier 3 tractors in both 2WD and 4WD configurations.

Does it include complete engine rebuilding procedures?

Yes. The manual covers engine disassembly, inspection, crankshaft, pistons, cylinder head, valve train, fuel injection system and turbocharger service procedures.

Are hydraulic and electrical systems included?

Yes. It contains hydraulic troubleshooting, steering repairs, electrical wiring diagrams, charging system diagnostics and starting circuit testing.

Is the four-wheel-drive system covered?

Yes. Dedicated chapters explain servicing of the 4WD transfer system, front axle assemblies, reduction hubs and differential components.

Is this an OEM New Holland workshop manual?

Yes. This is the official OEM Factory Repair Service Manual (Publication No. 47899732), 1st Edition, published in June 2015 and supplied as a searchable PDF with 767 pages.