Part of the New Holland Operator Manuals.
This 256-page New Holland T4020 operator manual PDF (OEM ID 47394627) covers four tractors in the range, T4020 through T4050. Service intervals run from the 10-hour checks to the 1800-hour items, set out in a lubrication table with the instrument panel warning lights decoded in the same chapter. Field chapters cover the three-point linkage, independent and synchronized PTO, differential lock, rear remotes, ballast and maximum permitted weights, while the troubleshooting chart sorts faults by engine, electrical, hydraulic lift and brakes. Hold the air line under 5 bar when you blow out the filter element, and give the fuel filter three quarters of a turn (15 Nm). Bookmarked and text-searchable, the file travels in your cab on a phone or tablet.
What's Inside This New Holland T4020, T4030, T4040, T4050 Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Operator's Manual | 1 | |
| Section Summary | 2 | |
| CE Declaration of Conformity | 3-4 | EC Declaration of Conformity, Directive 2006/42/EC, Harmonised Standards, ISO 26322-1 |
| Metric and Imperial Units Abbreviations | 5-7 | Area, Electricity, Force, Frequency, Length, Mass, Power, Pressure |
| General Information and Safety | 11-54 | Tractor Identification Plates, Important Ecological Considerations, Always Work Safely, Working Safely, Safety Decals, Tractor Noise Level Information Sheet |
| Controls and Instruments | 55-108 | Operation Indicators, Digital Instrument Control Panel |
| Field Operation | 109-162 | Starting and Stopping, Brakes, Mechanically Engaged 4WD, Hydraulically Engaged 4WD, Lim-Slip Differential Lock, Differential Lock, Independent Power Take-Off |
| Lubrication and Maintenance | 163-218 | Access for Inspection and Maintenance, Lubrication and Maintenance Table, Flexible Maintenance, Instrument Panel Warning Lights, Every 10 Hours of Work, Every 50 Hours of Work |
| Troubleshooting, Causes and Solutions | 219-226 | Engine, Electrical System, Hydraulic System, Hydraulic Lift, Brakes |
| Vehicle Storage | 227-228 | Engine Protection, Battery Maintenance, Fuel Tank, Tyre Support, Bodywork Protection |
| Accessories | 229-238 | Quick Fit Implement Linkage, Towing Equipment, Joystick for Side Control Valves, Control Valve for Trailer Hydraulic Brakes, Fold-Down Roll Bar |
| Specifications and Data | 239-248 | Engine Data, Fuel System, Transmission, Power Take-Off, Hydraulic Lift, Electrical System |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Engine oil filter tightening torque | 3/4 of a turn, or a full turn at most | p. 191 |
| Transmission oil filter tightening torque | 3/4 of a turn by hand | p. 186 |
| Compressed air pressure for cleaning air filter | less than 5 bar | p. 179 |
| Fuel filter tightening torque | 3/4 of a turn (15 Nm) | p. 192 |
| Battery charge | at least 12.6 volts | p. 223 |
| Alternator output | 120 A | p. 248 |
| Alternator power | 1.4 kW | p. 248 |
| Hydraulic lift pressure relief valve calibration | 2755 psi (190 bar) | p. 245 |
| Steering pressure relief valve calibration | 2465 psi (170 bar) | p. 246 |
| Cooling System Capacity | 14.0L | p. 216 |
| T4020, T4030 | ||
| Engine Oil Capacity (T4020-T4030) | 8.5L | p. 216 |
| T4040, T4050 | ||
| Engine Oil Capacity (T4040-T4050) | 9.5L | p. 216 |
New Holland T4020, T4030, T4040, T4050 Common Problems This Manual Covers
New Holland T4020-T4050 engine coolant temperature warning sounds with icon on display while working under load
Stop the engine immediately and let it cool. Page 28 warns the cooling system is pressurised, so use a cloth and unscrew the cap slowly to release pressure. Clean a clogged radiator core, top up the expansion tank, check for leaks, replace a defective cap and check the fan belt tensioning device following page 221. If the warning persists, do not use the tractor; call your dealer.
Manual Section: Engine Troubleshooting p. 221Transmission oil temperature warning icon comes on with audible alarm during field work
Drop the engine to idle for 2 to 3 minutes, then switch off and check that the transmission oil cooler is not clogged, as page 79 directs. Clean it if needed. Check transmission oil level, top up, and renew the filter if necessary, tightening it 3/4 of a turn by hand per page 186. Wait for hot components to cool and wear gloves (page 23). If the signal does not stop, call your dealer.
Manual Section: Operating Faults and Solutions p. 79Starter motor turns slowly or does not work at all when turning the key
Move the gear lever to neutral first. Page 29 warns never to start the engine by shorting across the starter terminals. Clean and tighten loose or corroded connections, wearing eye protection and avoiding sparks around the battery. Check that battery charge is at least 12.6 volts and check electrolyte level and specific gravity following page 223. Charge or replace batteries that are totally flat.
Manual Section: Electrical System Troubleshooting p. 223Battery charge light stays on with engine running and batteries not charging
Check idle speed first; a low idle keeps the light on, so increase it. Inspect the alternator belt tensioning device and replace a loose or worn belt following page 223. Wear eye protection and avoid sparks at the battery (page 29), then clean and tighten terminals and confirm at least 12.6 volts. If it still won't charge, have your dealer check the alternator before you're stuck mid-harvest.
Manual Section: Electrical System Troubleshooting p. 223Hydraulic lift operates slowly in draft control or three-point linkage will not move with lever
Adjust the combined draft/position control first; an incorrect setting is listed for slow lift operation on page 226. If the linkage won't move at all, check that the linkage cylinder tubes are connected correctly and reduce the load. Adjust implement settings if the implement isn't working properly. If lowering speed stays too slow, have the control valve checked by your dealer.
Manual Section: Hydraulic Lift and Three-Point Linkage Troubleshooting p. 226Remote hydraulics do not work or hydraulic fluid overheats after hooking up an implement
Check that hoses are connected correctly, then actuate the control levers and check oil flow in the half couplers. If the problem persists, replace the male couplers with standard ISO 1/2 inch connectors from your dealer, per page 225. For overheating, correct a fluid level that is too high or low, replace a clogged filter element and set flow regulation to a lower capacity.
Manual Section: Hydraulic System Troubleshooting p. 225Frequently Asked Questions
How do I calibrate the transmission on a New Holland T4000?
To calibrate the transmission, select a dry, level surface and measure a 100-meter section. Press switch (1) in position (B) for over three seconds to enter the setup menu, select 'CAL', and then 'CAL READY'. Drive at a speed above 2 km/h (1.25 MPH) and press the button to start calibration ('CAL ON'). Once the front tires pass the end line, press the button again to save the value ('CAL OK'). p. 67
What are the replacement engine oil and transmission/hydraulic filter specs for New Holland T4020, T4030, T4040, T4050?
For the engine oil filter (Operation 36), tighten the new filter by hand by 3/4 of a turn, or a full turn at most. For the transmission and lift oil filter (Operation 25), tighten the cartridge by 3/4 of a turn by hand. p. 186
What are the replacement specifications for the air filter elements on the New Holland T4020, T4030, T4040, T4050?
The external air filter cartridge should be replaced every year or when cracks appear. The internal safety cartridge must never be cleaned, but it must be changed every three times the external cartridge is cleaned. p. 179
What is the procedure for bleeding the fuel system after changing the filter?
After changing the filter, push the retaining pin (5) or button (7) to unhook the pipe from the filter head. Pump the primer lever (6) until the fuel coming out contains no air bubbles, then reconnect the pipe and lock it with the retaining pin. p. 193
What is the correct torque for the wheel hub disk nuts on New Holland T4020, T4030, T4040, T4050 4WD front wheels?
The torque specification for the hub disk nuts on 4WD front wheels is 255 Nm (26 kgm). p. 141
What do I get after purchasing this New Holland T4020–T4050 Series manual?
Straight to your device: 256 pages of searchable Operator Manual, downloadable the moment payment goes through.
Is this New Holland T4020–T4050 Series Operator Manual printable?
Yes. Print a chapter or just the pages for the job at hand, for use in your own shop. Any home or office printer works.
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