New Holland T6.120, T6.140, T6.150, T6.155, T6.160, T6.165, T6.175, T6.140 Autocommand, T6.150 Autocommand Tractor Pdf Repair Service Manual NA (Tier 4a)

New Holland T6.120, T6.140, T6.150, T6.155, T6.160, T6.165, T6.175 & Auto Command Tractor PDF Repair Service Manual (North America Tier 4A)

The North American T6 Tier 4A Series was developed for producers who expect one tractor to handle everything from loader work and livestock operations to planting, mowing, transport and heavy PTO applications. Its combination of high-pressure hydraulics, advanced emissions technology and Auto Command continuously variable transmission delivers excellent versatility, but also demands accurate factory repair procedures whenever major service is required.

This OEM Factory Repair Service Manual (Publication No. 47665870) covers the North American New Holland T6.120, T6.140, T6.150, T6.155, T6.160, T6.165, T6.175 together with the T6.140 Auto Command and T6.150 Auto Command Tier 4A tractors. Created for authorized New Holland technicians, it provides complete diagnostic procedures, overhaul instructions, electrical troubleshooting, hydraulic testing and factory service specifications. With 5,882 searchable pages, it serves as a comprehensive workshop reference for maintaining these advanced utility tractors.

North American T6 Tier 4A Machine Specifications

OEM Manual Technical Specifications

Factory Workshop Coverage

• Tier 4A engine diagnostics, overhaul and fuel system repair procedures.
• Auto Command CVT calibration, troubleshooting and transmission rebuilding.
• Power Shuttle and Semi-Powershift transmission servicing where applicable.
• MFWD front axle, differential and final drive overhaul procedures.
• Closed-center load-sensing hydraulic pump testing and remote valve diagnostics.
• Rear hitch, draft control and implement coupling adjustments.
• PTO clutch servicing, inspection and operational testing.
• Brake system repairs, steering components and wheel-end servicing.
• Cab HVAC, dashboard electronics and operator control diagnostics.
• Complete electrical troubleshooting using OEM wiring diagrams and connector layouts.
• Factory torque values, wear limits, inspection measurements and exploded component illustrations.
• Special service tools, troubleshooting charts and post-repair testing procedures.

Designed for Accurate Dealer-Level Repairs

Tier 4A T6 tractors combine electronically managed emissions systems, advanced hydraulic controls and sophisticated transmission technologies that require systematic diagnosis before components are replaced. This factory workshop manual follows the same repair sequence used by New Holland dealerships, helping technicians verify hydraulic pressures, perform transmission calibrations, diagnose electrical faults and restore factory operating performance while minimizing unnecessary downtime.

Frequently Asked Questions

Does this manual support both standard and Auto Command tractors?

Yes. It covers the standard T6 models together with the T6.140 Auto Command and T6.150 Auto Command tractors included under Publication No. 47665870.

Are Tier 4A engine and emissions repair procedures included?

Yes. The manual contains complete diagnostic and repair procedures for the Tier 4A engine systems, including emissions-related components covered by the factory publication.

Can I repair the Auto Command transmission with this manual?

Yes. It includes factory calibration procedures, transmission diagnostics, overhaul instructions and post-repair testing for the Auto Command CVT.

Does the manual include complete hydraulic and electrical diagnostics?

Yes. OEM hydraulic schematics, electrical wiring diagrams, connector locations and troubleshooting procedures are provided for efficient fault diagnosis.

Is this manual suitable for complete tractor rebuilding?

Absolutely. It covers the engine, transmission, MFWD system, hydraulics, PTO, steering, brakes, electrical systems, chassis and cab assemblies using official OEM repair procedures.

Who benefits most from this factory workshop manual?

It is ideal for New Holland dealership technicians, agricultural repair specialists, fleet maintenance departments and experienced owners maintaining North American Tier 4A T6 tractors.