Nuffield
Nuffield 3/45
The Nuffield 3/45 is a farm tractor produced by Nuffield from 1967 to 1969 in Bathgate, Scotland. It features a BMC 2.8L 3-cylinder diesel engine producing 45 hp (33.6 kW) with a 10-speed gear transmission. The tractor has two-wheel drive with spur gear final drives and offers manual or optional power steering. It includes a rear PTO with 540 rpm at 1800 engine RPM and an open operator station. Dimensions include a 74.8 inch wheelbase, 116.9 inch length, and an operating weight of 4460 lbs. Tires vary with agricultural front and rear options. The 3/45 is related to the Nuffield 4/65 and 10/42 models.
Power45 hp
Founded1967 - 1969
Model3/45
Technical Specifications
Detailed specifications and technical data for Nuffield 3/45
Power
| Engine | 45 hp (33.6 kW) |
|---|---|
| PTO (claimed) | 39 hp (29.1 kW) |
Engine
| Type | diesel, 3-cylinder, liquid-cooled |
|---|---|
| Model | BMC 2.8L 3-cyl diesel |
| Power | 45 hp (33.6 kW) |
| Fuel tank | 19.2 gal (72.7 L) |
| Rated RPM | 2200 |
| Bore/Stroke | 3.975x4.724 inches (101 x 120 mm) |
| Displacement | 173 ci (2.8 L) |
| Firing order | 1-3-2 |
| Oil capacity | 9 qts (8.5 L) |
| Starter volts | 12 |
| Coolant capacity | 10.8 qts (10.2 L) |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Brakes | Mechanical disc brakes |
| Steering | manual, power (Optional) |
| Final drives | spur gear |
| Operator station | Open operator station |
Production
| Built in | Bathgate, Scotland |
|---|---|
| Years made | 1967 - 1969 |
| Manufacturer | Nuffield |
Belt Pulley
| Speed | 3011 ft/min (low ratio), 3821 ft/min (high ratio) |
|---|---|
| Width | 6.5 inches (16 cm) |
| Diameter | 9 inches (22 cm) |
Transmission
| Type | gear |
|---|---|
| Gears | 10 forward and 2 reverse |
| Clutch | 280mm dry disc |
| Description | Five gears, plus reverse, in two ranges. |
Tractor hitch
| Control | directional control and top-link draft sensing |
|---|---|
| Rear Type | II/I |
Dimensions & Tires
| Width | 67.7 inches (171 cm) |
|---|---|
| Length | 116.9 inches (296 cm) |
| Rear tire | 11.00-28, 11.00-32, 13.00-28 |
| Wheelbase | 74.8 inches (189 cm) |
| Front tire | 5.50-16, 6.00-16, 7.50-16 |
| Rear tread | 52 to 80 inches (132 to 203 cm) |
| Front tread | 52 to 76 inches (132 to 193 cm) |
| Height (hood) | 56.7 inches (144 cm) |
| Ground clearance | 19.1 inches (48 cm) |
| Height (exhaust) | 82.7 inches (210 cm) |
| Operating weight | 4460 lbs (2023 kg) |
| Clearance (drawbar) | 13.4 inches (34 cm) |
| Clearance (front axle) | 16.1 inches (40 cm) |
Power Take-off (PTO)
| Rear PTO | transmission |
|---|---|
| Engine RPM | 540@1800 |
| Independent | optional |
| Rear PTO Type | 540 (1.375) |