Part of the New Holland Repair Manuals.
A three-point hitch that creeps down overnight sends most owners to the lift cylinder, when the main control valve and the return filter are what usually settle it. This book is where that test order is written down.
Coverage runs across the New Holland TT3.35, TT3.40, TT3.45 and TT3.50 tractors, including the 2WD and 4WD TREM-3A builds, under publication 51541644. Twelve system sections fill 980 pages: the Simpsons engine and its fuel injection system, clutch, mechanical transmission and dropbox, powered and non-powered front axles, rear axle with planetary final drives, one and two-speed rear PTO, brakes, hydraulics, steering, wheels, and the electrical harnesses.
Torque values, wear limits and capacities sit alongside the procedures, from 0.300 mm cold valve tip clearance to 7.5 L of differential oil. Every day the tractor sits is field work you do not get back, and the searchable PDF puts you on the right section in seconds and prints only the pages you carry out.
What's Inside This New Holland TT3.35–TT3.50 Series Manual
| System | Pages | Key Topics |
|---|---|---|
| Engine | 5-206 | Engine and Crankcase, Pan and Covers, Valve Drive and Gears, Cylinder Heads, Connecting Rods and Pistons, Crankshaft and Flywheel, Fuel Filters, Fuel Injection System |
| Clutch | 207-248 | Clutch and Components |
| Transmission | 249-364 | Mechanical Transmission, Mechanical Transmission Internal Components, Gearbox External Controls, Gearbox Internal Components, Dropbox, Transmission Generic Sub-Group |
| Front Axle System | 365-518 | Powered Front Axle, Final Drive Hub, Steering Knuckles, And Shafts, Non-Powered Front Axle |
| Rear Axle System | 519-578 | Powered Rear Axle, Rear Bevel Gear Set and Differential, Planetary and Final Drives |
| Power Take-Off (PTO) | 579-616 | Rear Mechanical Control, One-Speed Rear Power Take-Off, Two-Speed Rear Power Take-Off |
| Brakes and Controls | 617-640 | Mechanical Service Brakes |
| Hydraulic Systems | 641-756 | Hydraulic Systems Overview, Reservoir, Cooler, And Filters, Fixed Displacement Pump, Main Control Valve, Main Lift System |
| Steering | 757-856 | Steering Control, Hydraulic Control Components, Cylinders |
| Wheels | 857-872 | Front Wheels, Rear Wheels |
| Electrical Systems | 873-944 | Electrical System, Harnesses and Connectors, Engine Starting System, Alternator, Battery, External Lighting, Warning Indicators, Alarms |
| Platform, Cab, Bodywork, and Decals | 945-980 | Protections and Footboards, Engine Hood and Panels, Fenders and Guards |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Cylinder head nuts and setscrews (non retorque type) | 10.8 kgf (23.8 lbf) | p. 10 |
| Connecting rod nuts (cadmium plated) | 6.1 kgf (13.4 lbf) | p. 10 |
| Flywheel housing seal depth A | 2.20 mm (0.09 in) | p. 130 |
| Cylinder bore taper repair limit | 0.025 mm (0.001 in) | p. 62 |
| Cylinder bore taper wear limit | 0.127 mm (0.005 in) | p. 62 |
| Fan belt tension adjusting bolt | 2.4 kgf (5.3 lbf) | p. 10 |
| Oil sump set screws / nuts torque | 28 N·m (21 lb ft) | p. 61 |
| Flywheel housing seal depth B | 4.60 mm (0.18 in) | p. 130 |
| Valve spring free length | 45.29 – 45.80 mm (1.783 – 1.803 in) | p. 111 |
| Flywheel setscrew torque | 11.1 N·m (8.2 lb ft) | p. 128 |
| Flywheel runout limit | 0.300 mm (0.012 in) | p. 128 |
| Fuel filter capacity | 0.500 L (0.132 US gal) | p. 151 |
New Holland TT3.35–TT3.50 Series Common Problems This Manual Covers
Three-point hitch settles under load
A loaded implement that creeps down while you turn at the headland usually points at the main control valve or a tired fixed displacement pump rather than the lift cylinder. The Hydraulic Systems section walks the reservoir, cooler and filters, the pump, the control valve and the main lift system in order.
Manual Section: Hydraulic Systems p. 641PTO stalls in heavy crop
A mower or baler that drops off when the crop thickens often traces to wear in the PTO clutch or slack in the rear mechanical control linkage. Both the one-speed and two-speed rear power take-off are covered with engagement checks and teardown steps.
Manual Section: Power Take-Off (PTO) p. 579Clutch drags and gears grind
Free play that has crept out of the pedal leaves the disc still turning, so gear changes grind and the tractor creeps against the brakes. This section covers pedal adjustment, clutch removal and the wear limits that tell you whether the disc is worth putting back.
Manual Section: Clutch p. 207Front axle whine in 4WD
Noise that rises with ground speed and disappears when you drop out of four-wheel drive usually means worn final drive hub bearings or a dry steering knuckle. Disassembly order, shimming and wear limits for the powered front axle are all here, along with the non-powered 2WD axle.
Manual Section: Front Axle System p. 365Engine smokes and drinks oil
Blue smoke on a warm restart with a sump level that keeps falling usually means worn bores or tired rings. The Engine section carries cylinder bore taper and out-of-round limits, piston height above and below the block face, and the head bolt torque sequence for reassembly.
Manual Section: Engine p. 5Steering goes heavy at idle
Steering that feels notchy at low revs and lightens as engine speed rises points at the steering control unit or a leaking cylinder. The Steering section covers steering control, the hydraulic control components and the cylinders themselves.
Manual Section: Steering p. 757Battery flat after the tractor sits
Slow cranking after a week idle is more often a failing alternator, a corroded harness ground or a parasitic draw than a dead battery. The Electrical Systems section covers the starting system, alternator, battery, harnesses and connectors, and the warning indicators that flagged it.
Manual Section: Electrical Systems p. 873Frequently Asked Questions
Which tractors does this manual cover?
The New Holland TT3.35, TT3.40, TT3.45 and TT3.50, including the 2WD and 4WD TREM-3A versions of the TT3.35, TT3.40 and TT3.45, plus the TT3.50-2WD and TT3.50-4WD. It is New Holland publication 51541644.
Does it give engine torque figures and clearances?
Yes. The Engine section starts at page 5 and keeps the numbers with the procedures: cylinder head bolts 1 to 8 at 40.0 N·m then 225 degrees angular, bolts 9 to 12 at 65.0 N·m, valve tip clearance 0.300 mm cold and 0.250 mm hot. p. 5
Is the 4WD front axle covered, or only 2WD?
Both. The Front Axle System section begins at page 365 and covers the powered front axle, the final drive hub, steering knuckles and shafts, and the non-powered front axle fitted to 2WD tractors. Differential oil quantity is listed at 7.5 L. p. 365
Will it help me chase a no-start or charging fault?
The Electrical Systems section starts at page 873 and covers harnesses and connectors, the engine starting system, alternator, battery, external lighting, and warning indicators and alarms, so you can trace a dead crank or a discharging battery to the circuit instead of swapping parts. p. 873
How quickly can I access this New Holland TT3.35-TT3.50 manual after buying?
Delivery is instant: a 980-page searchable PDF is yours the second checkout clears. Laptop, tablet, or phone, all fine.
Can I print just the pages I need from this New Holland TT3.35-TT3.50 manual?
You can. The PDF is unlocked and carries no copy protection, so print the sections you want and keep the file as your backup.
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