Part of the New Holland Operator Manuals.
Draft control, position control, and the Lift-O-Matic button get the hardest working chapter in this New Holland TT4.75 operator manual PDF, a 130 page factory book (OEM ID 48135174) covering the TT4.55 and TT4.75 models. The lubrication and maintenance chart takes up nearly a quarter of the book, laying out every service from daily engine oil and coolant checks to the 1200 hour hydraulic and transmission fluid change. Fault code resolution, ballasting and tire load tables, and full PTO and three-point hitch procedures fill out the working sections. When you reset rear track width, pull the disc to hub bolts to 350 N·m (use 220 N·m for standard maintenance) and the rim nuts to 275 N·m. A tractor parked during a dry week costs you acres, not hours. Bookmarked and searchable by keyword, this PDF lands you on the right page in seconds, with the hitch set while the field is still fit.
What's Inside This New Holland TT4.55, TT4.75 Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 7-12 | Introduction, Safety Precautions, During the First 50 Hour Operation, First 50 Hours Service, Preventing System Contamination, Flexibility of Maintenance Intervals |
| Safety Information | 13-26 | Safety Rules, Safety Precautions, Personal Safety, Driving the Tractor, Operating the Tractor, Operating the Power Take-Off, Servicing the Tractor, Diesel Fuel |
| Controls and Instruments | 27-44 | Access to Operator's Platform (Before Operating), Operator's Seat (Belt) |
| Operating Instructions | 45-48 | Commissioning the Unit (Before Operating, Running-In Procedure), Starting the Unit (Tractor with Jumper Cables, Engine), Stopping the Unit (Stopping the Engine) |
| Transport Operations | 49-50 | Road Transport (Carrying the Tractor on a Transporter), Recovery Transport (Towing the Tractor) |
| Working Operations | 51-78 | Inter Cooler & Turbo Charger Lda (Oil Cooler) |
| Maintenance | 79-110 | Maintenance Planning (Maintenance Chart) |
| Troubleshooting | 111-114 | Fault Code Resolution (Maintenance - Troubleshooting) |
| Specifications | 115-130 | Engine, Cooling System, Power Take Off, Clutch System, Three-Point Linkage, Hydraulic System, Electrical System, Steering |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Rear disc to hub bolts | 350 N·m | p. 71 |
| Rear disc to rim nuts | 275 N·m | p. 71 |
| Axle extension securing bolts | 118 N·m | p. 68 |
| Track control rod locating bolt nut | 24.5 N·m | p. 68 |
| Disc diameter (power shuttle) | 143.2 mm (5.6 in) | p. 117 |
| Clutch disc diameter (mechanical) | 304.8 mm (12.0 in) | p. 117 |
| Engine Oil Capacity | 7.4 L | p. 125 |
| Common Oil Capacity (Transmission, Hydraulics, Steering) | 38 L | p. 125 |
| Brake Oil Capacity | 0.4 L | p. 125 |
| Coolant Capacity | 4.5 L | p. 125 |
| Front Disc to Hub Bolts Torque (2WD) | 320 N·m | p. 87 |
| Front Disc to Hub Bolts Torque (4WD) | 220 N·m | p. 87 |
New Holland TT4.55, TT4.75 Common Problems This Manual Covers
New Holland TT4.75 engine oil pressure warning light glows at idle after startup
Shut the engine down right away; do not idle it back to the barn. Check the dipstick and top up as needed, the engine holds 7.4 L per the capacities table on page 125. If the light still glows at the correct level, follow the oil pressure chart on page 111 before working again.
Manual Section: Engine Oil Pressure Troubleshooting p. 111Starter won't crank until you work the shuttle lever, or cranks slowly on cold mornings
Verify the shuttle lever is fully in neutral and hold the clutch pedal to the floor, well past its 35 to 40 mm free travel listed on page 117; a worn neutral start switch often needs that. Clean and tighten both battery terminals, then work the no start chart on page 111 before condemning the starter.
Manual Section: Engine Troubleshooting p. 111Clutch slips under heavy draft load, engine revs up but the tractor loses ground speed
Measure clutch pedal free travel at the pad; the spec on page 117 is 35 to 40 mm (1.38 to 1.57 in). Adjust the linkage back into range and keep your foot off the pedal between passes. If it still slips under draft load, the disc is worn and that is a dealer job.
Manual Section: Specifications p. 117Temperature gauge climbs into the red during heavy PTO work in tall dry crop
Check coolant level with the engine cold; the system holds 4.5 L per page 125. Clean chaff and crop trash out of the radiator screen and grille, then check fan belt tension for glazing or slack. If the gauge still climbs, follow the overheating chart on page 111 before finishing the field.
Manual Section: Engine Overheating Troubleshooting p. 111Three point hitch lifts slowly or won't raise a loaded implement at full throttle
Check the common reservoir level with the hitch and all remotes lowered; transmission, hydraulics, and steering share 38 L of oil per page 125. Low oil starves the lift pump first under load. If the level is right and the hitch still stalls, the relief valve (factory set at 210 bar, page 117) needs a dealer pressure check.
Manual Section: Hydraulic System TroubleshootingFrequently Asked Questions
What are the torque specifications for the wheel nuts on the New Holland TT4 tractor?
The torque specifications for the front disc to hub bolts are 320 N·m for 2WD models and 220 N·m for 4WD models. For rear wheel components, the rear disc to hub bolts should be torqued to 220 N·m, while the rear disc to rim nuts and rear wheel weight to disc bolts are both 150 N·m. p. 87
What are the replacement specs for the engine air cleaner elements on a New Holland TT4.55, TT4.75 tractor?
The outer element should be replaced after 3 cleanings or 900 hours, whichever is earlier. The inner element should be replaced after 3 replacements of the outer element or 2700 hours, whichever is earlier. p. 92
What is the correct valve tappet clearance for the New Holland TT4.55, TT4.75 tractor engine?
The correct valve clearance for both the inlet and exhaust valves is 0.30 mm, measured with the engine in a cold condition. p. 100
What is the required engine oil capacity for the TT4 tractor?
The approximate engine oil capacity for the tractor is 7.4 liters. p. 125
How do I bleed the fuel injection system if air is trapped?
To bleed the system, remove the air bleed screw on the primary fuel filter and use the manual priming lever on the fuel feed pump until fuel flows without air bubbles. Repeat this process for the secondary fuel filter. If misfiring persists, you may need to loosen the high-pressure pipe nut on the injector end while cranking the engine until fuel is ejected with pressure. p. 95
How quickly can I access this New Holland TT4.55 manual after buying?
This is a 130-page searchable PDF ready for immediate download. Works on any device, so pull it up on your phone while you're under the hood. No shipping, no waiting.
Can I print a copy of this New Holland TT4.55 Operator Manual for the shop?
Yes, printing is unrestricted: a single page, a chapter, or the lot, on letter or A4.
Reviews
There are no reviews yet.