Part of the New Holland Repair Manuals.
This is the full factory repair manual for the New Holland TL70, TL80, TL90 and TL100 tractors, the same service information a dealer technician works from. It is organised the way the tractor is built: engine, clutch, transmission and range gears, front and rear axles, PTO, brakes, the hydraulic power lift, hydrostatic steering, the cab and air conditioning, and a full electrical section with the wiring circuits. Every section carries the specifications, tightening torques, cross-sectional views and step-by-step removal and overhaul procedures, so whether you are chasing a hydraulic fault, overhauling a clutch or tracing a wiring problem, you can do the job properly instead of guessing.
What's Inside This New Holland TL70, TL80, TL90, TL100 Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| General Guidelines | General Instructions, Safety Regulations, Shimming, Seals, Sealing Compounds, Bearings, Spring Pins, Spare Parts, Tools, Important Notes | |
| Engine | General Specifications, Data, Tightening Torques, Tools, Cross-Sectional Views, Lubrication, Cooling System, Fault Diagnosis, Engine R.I., Compression Test, Engine D.A. Checks | |
| Clutch | General Specifications, Tightening Torques, Tools, Cross-Sectional Views, Fault Diagnosis, Checks, Dimensions and Repairs, Main Transmission Clutch Release, Clutch R.I., Dual Clutch Overhaul | |
| Transmissions | Transmission and Range Gear Data, Tightening Torques, Tools, Cross-Sectional Views, Description and Operation, Fault Diagnosis, Gearbox/transmission Casing R.I. | |
| Drive Lines | Data, Tightening Torques, Tools, Cross-Sectional Views, Description of Operation and Hydraulic Diagrams, Fault Diagnosis, Services Control Valve R.I. | |
| Front Axle Mechanical Transmission | Data, Tightening Torques, Tools, Cross-Sectional Views, Differential Operation, Fault Diagnosis, Front Axle R.I., Overhaul | |
| Rear Axle Mechanical Transmission | Data, Tightening Torques, Tools, Cross-Sectional Views, Description and Operation, Fault Diagnosis, Gearbox-Transmission Casing R.I. | |
| Power Take-Off | Data, Tools, Tightening Torques, Cross-Sectional Views, Description of Operation, Fault Diagnosis, Power Take-Off Housing R.I. | |
| Brakes | Data, Tightening Torques, Cross-Sectional Views, Description and Operation, Fault Diagnosis, Handbrake Control, Parking Brake Casing, Brake Hydraulic System | |
| Hydraulic Systems | Precautionary Statements, General Description, Configurations, Low Pressure, Steering and Lubrication System, High Pressure System, Oil Flow Priority, Hydraulic Power Lift (Hpl) Control | |
| Steering | Data, Tightening Torques, Components and Operating Diagrams, Fault Diagnosis, Tools, Hydrostatic Steering Control Valve R.I. | |
| Axles and Wheels | Data, Cross-Sectional Views, Tightening Torques, Fault Diagnosis and Equipment, Front Axle Hub D.A., Front Axle R.I., Stub Axle Overhaul | |
| Auxiliary Units | Safety Regulations, General Specifications, Tools, Operating Principles, Cab Air Conditioning System, Warnings, Cab Controls, Refrigerant Recovery | |
| Electrical System | Instruments, Components, Starting System, Charging System, Battery, Electrical Circuits, Analog Instruments, Transmitters, Sensors and Switches, Maintenance, Electronic Instruments, Diagnostics | |
| Bodywork and Driving Position | Platform R.I., Driver's Seat R.I., Cab Right- or Left-Hand Door R.I., Cab Windscreen Repl., Cab Rear Window Repl., Upright Strip Repl., Fixed Padding Repl., Hydraulic Control Lever Guard Repl., Cab Ceiling Trim Repl. |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| TL70 | ||
| Rated Engine Power (50h) | 65 to 67.5 hp (48 to 50 kW) | |
| TL80 | ||
| Rated Engine Power (50h) | 74 to 77 hp (54.5 to 56.5 kW) | |
| TL90 | ||
| Rated Engine Power (50h) | 84 to 87 hp (61.8 to 64 kW) | |
| TL100 | ||
| Rated Engine Power (50h) | 92.5 to 98.5 hp (68 to 72 kW) | |
| TL70/TL80/TL90/TL100 | ||
| Rated Power Speed | 2500 rev/min | |
| Max Torque Speed | 1500 rev/min | |
New Holland TL70, TL80, TL90, TL100 Common Problems This Manual Covers
Hydraulic system loses pressure or three-point lift drops after the tractor warms up.
Follow the Section 35 fault diagnosis: check oil level and filter, then test low and high pressure circuits at the listed test points. A tired main pump or a stuck pressure relief valve is the usual cause, and the section gives the removal and overhaul steps.
Manual Section: Section 35 - Hydraulic SystemsClutch slips, drags or needs frequent pedal adjustment.
Set the pedal free-play to the Section 18 spec first, since a mis-adjusted linkage mimics a worn disc. If free-play is correct and it still slips, the section covers clutch removal, release-bearing checks and the dual-clutch overhaul with all tightening torques.
Manual Section: Section 18 - ClutchEngine overheats or blows black smoke under load.
Work the Section 10 fault diagnosis: confirm the cooling system is clean and the air intake is not restricted, then check injection. Black smoke points to fuel or air-side faults, and the section has the compression test and injector data to confirm it.
Manual Section: Section 10 - EngineTransmission is hard to shift or will not stay in a forward gear.
Start at the clutch (Section 18) so the drive fully releases, then use the Section 21 fault diagnosis for the gearbox and range units. The section covers casing removal, gear and synchro inspection and the reassembly torques if internal wear is found.
Manual Section: Section 21 - TransmissionsFrequently Asked Questions
Does this manual include wiring diagrams for the TL70, TL80, TL90 and TL100?
Yes. Section 55 (Electrical System) carries the electrical circuits, starting and charging system layouts, sensor and switch data and the diagnostics needed to trace a fault instead of guessing at it.
How do I adjust or overhaul the clutch on a TL tractor?
Section 18 (Clutch) gives the pedal free-play and release-bearing settings, tightening torques and the full removal and dual-clutch overhaul procedure, so you can sort a slipping or dragging clutch on the bench.
The hydraulics are slow or lose lift - where do I start?
Section 35 (Hydraulic Systems) walks the low and high pressure circuits, oil flow priority and the Hydraulic Power Lift control, with the pressure test points and fault diagnosis to find a worn pump or a stuck relief valve.
Does it cover the transmission and range gears?
Section 21 (Transmissions) has the transmission and range gear data, tightening torques, cross-sectional views and the casing removal and installation steps for both the gearbox and range units.
What engine power should each model make?
Rated power runs about 65 to 67.5 hp on the TL70, 74 to 77 hp on the TL80, 84 to 87 hp on the TL90 and 92.5 to 98.5 hp on the TL100, all at 2500 rev/min - the exact figures and fuel consumption are in Section 10.
How quickly can I access this New Holland TL70, TL80, TL90, TL100 manual after?
Immediate download of the complete 1686-page searchable Repair Manual (75 MB). Access it on any device, from a laptop at your desk to a phone in the field.
Am I able to print pages from this New Holland TL70, TL80, TL90, TL100 manual?
Zero restrictions. The PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
