Part of the New Holland Repair Manuals.
This is the full factory repair manual for the New Holland T8.275, T8.300, T8.330, T8.360 and T8.390 tractors, the high-horsepower row-crop models, the same service information a dealer technician works from. It covers the whole tractor: the engine and front power take-off, the transmission, driveline and rear power take-off, the axles, brakes and steering, the primary and remote hydraulic systems, the electrical, electronic and pneumatic systems with the wiring diagrams, the cab and frame and the three-point hitch and working tools. Every section carries the specifications and capacities, the tightening torques, the functional adjustments, the fault finding and the step-by-step removal, overhaul and installation procedures, so you can chase a hydraulic, transmission or electronic problem and put it right instead of guessing.
What's Inside This New Holland New Holland T8.275 T8.300 T8.330 T8.360 T8.390 Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction, Specifications and Special Tools | General Service Instructions, Safety Precautions, Torque and Capacity Specifications, Special Tools, Consumables, Model Coverage T8.275 T8.300 T8.330 T8.360 T8.390 | |
| Engine and Front PTO | Diesel Engine Description and Operation, Cylinder Head and Block, Cooling and Lubrication, Fuel and Injection, Air Intake and Exhaust Aftertreatment, Front Power Take-Off, Fault Diagnosis, Overhaul | |
| Transmission, Driveline and Rear PTO | Powershift Transmission, Ranges and Clutches, Driveline and Propeller Shafts, Four-Wheel Drive, Rear Power Take-Off, Description and Operation, Fault Diagnosis, Overhaul | |
| Axles, Brakes and Steering | Front and Rear Axles, Differential and Final Drives, Service and Parking Brakes, Hydrostatic Steering, Wheels and Tyres, Description, Fault Diagnosis, Overhaul | |
| Primary Hydraulic Power System | Pressure and Flow Compensated (Pfc) Hydraulic Pump, Standard and High-Flow Pump Options, Primary Power, Charge and Lubrication Circuits, Pressure and Flow Testing, Fault Diagnosis, Overhaul | |
| Remote Valves and Three-Point Hitch | Rear and Mid-Mount Remote Control Valves, Power Beyond, Rear Three-Point Hitch, Draft and Position Control, Hitch Calibration, Working-Tool Circuits, Fault Diagnosis | |
| Electrical, Electronic and Pneumatic Systems | Wiring Diagrams, Starting and Charging Systems, Battery, Control Modules and CAN Bus, Sensors and Actuators, Lighting and Instrumentation, Pneumatic Trailer Brake, Fault Diagnosis | |
| Cab, Frame and Working Tools | Operator Cab and Controls, Heating, Ventilation and Air Conditioning, Chassis Frame and Ballast, Front Linkage and Working-Tool Mounting, Removal and Installation |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Transmission and Hydraulic Oil Capacity | 172 liter (45 US gal) | |
| Standard PFC Pump Maximum Flow | 177 liter/min (46.5 US gpm) at rated speed | |
| Optional High-Flow PFC Pump Maximum Flow | 239 liter/min (63 US gpm) at rated speed | |
| Configuration | High-horsepower row-crop tractor | |
| Model Coverage | T8.275, T8.300, T8.330, T8.360, T8.390 |
New Holland New Holland T8.275 T8.300 T8.330 T8.360 T8.390 Common Problems This Manual Covers
Remotes or hitch are slow, weak, or will not hold load.
Work the Primary Hydraulic Power System section: it covers the PFC pump, the standard and high-flow options and the charge and lubrication circuits and gives the pressure and flow testing to find whether the pump, a valve or the standby pressure is behind the slow or weak hydraulics.
Manual Section: Primary Hydraulic Power SystemWarning lamps, error messages, or an electronic function that has stopped working.
Work the Electrical, Electronic and Pneumatic Systems section: it covers the wiring diagrams, the control modules and CAN bus and the sensors and actuators and gives the diagnosis to trace the fault behind a warning lamp or a function that has quit.
Manual Section: Electrical, Electronic and Pneumatic SystemsPowershift transmission shifts harshly, slips, or will not engage a range.
Work the Transmission, Driveline and Rear PTO section: it covers the powershift ranges and clutches, the driveline and the calibration and gives the fault diagnosis and overhaul to correct harsh shifts, slipping and a range that will not engage.
Manual Section: Transmission, Driveline and Rear PTOEngine lacks power, smokes, or triggers aftertreatment faults.
Work the Engine and Front PTO section: it covers the fuel and injection, the air intake and the exhaust aftertreatment and gives the specifications and diagnosis to cure low power, smoke and the aftertreatment faults on the T8 engine.
Manual Section: Engine and Front PTOFrequently Asked Questions
The remotes or three-point hitch are slow or weak - what does the manual cover?
The Primary Hydraulic Power System and the Remote Valves and Three-Point Hitch sections cover the PFC pump, the standard and high-flow options, the remote valves and the draft and position control, with the pressure and flow testing to find a slow or weak circuit.
Does this manual cover the powershift transmission and driveline overhaul?
Yes. The Transmission, Driveline and Rear PTO section covers the powershift transmission, the ranges and clutches, the driveline and four-wheel drive and the rear PTO, with the description, fault diagnosis and full overhaul.
Does the manual include the wiring diagrams and electronic diagnostics?
Yes. The Electrical, Electronic and Pneumatic Systems section carries the wiring diagrams, the control modules and CAN bus, the sensors and actuators and the fault diagnosis, so you can trace an electrical or electronic fault on the T8.
What are the hydraulic pump flow figures for the T8?
The standard PFC pump delivers up to 177 liter/min (46.5 US gpm) and the optional high-flow PFC pump up to 239 liter/min (63 US gpm) at rated speed. The Primary Hydraulic Power System section covers the flow and pressure testing behind these figures.
Which models does this manual cover?
It covers the New Holland T8.275, T8.300, T8.330, T8.360 and T8.390 high-horsepower row-crop tractors, including the engine, transmission, axles, hydraulics, electrical and hitch systems.
What do I get after purchasing this New Holland T8.275, T8.300, T8.330?
A 3402-page Repair Manual in searchable PDF format (249 MB), available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Can I print specific sections of this New Holland T8.275, T8.300, T8.330?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
















