| Manufacturer |
Leyland |
| Price |
- |
| Model |
285 |
| Equipment Type |
Row-Crop Tractors |
| Factory |
Bathgate, Scotland |
VARIANTS
LEYLAND 285 POWER
| Engine |
85 hp/63.4 kW |
| PTO (claimed) |
75 hp/55.9 kW |
ENGINE DETAIL
The Leyland 285 tractor features a robust 6-cylinder diesel engine with a displacement of 5.6 L, offering a maximum power of 85 hp at 2100 RPM and substantial torque of 234 lb-ft at 1400 RPM, ideal for heavy-duty tasks. Its dry air cleaner ensures effective filtration, enhancing engine longevity under demanding conditions. However, the relatively high RPM range may limit efficiency for some low-speed applications; it is best suited for medium to heavy agricultural work requiring consistent power output.
| Description |
Leyland/diesel/6-cylinder/liquid-cooled |
| Displacement |
344.7 ci/5.6 L |
| Bore/Stroke |
3.858x4.921 inches/98 x 125 mm |
| Power |
85 hp/63.4 kW |
| Air cleaner |
dry |
| Rated RPM |
2100 |
| Torque |
234 lb-ft/317.3 Nm |
| Torque RPM |
1400 |
| Starter |
electric |
| Starter volts |
12 |
LEYLAND 285 ENGINE
The Leyland 285 tractor is powered by a robust 5.6L 6-cylinder diesel engine, providing substantial torque for demanding agricultural tasks. Its engine design offers potential advantages in fuel efficiency and power delivery, making it suitable for heavy-duty fieldwork. However, operators should be aware of challenges related to engine maintenance and availability of parts, given the specific design and age of this model.
| Description |
Leyland 5.6L 6-cyl diesel |
TRANSMISSIONS OVERVIEW
The Leyland 285 features a 10-speed gear transmission, offering versatility for various agricultural tasks, while the 9-speed synchromesh provides smoother gear transitions, reducing operator fatigue. This setup enhances efficiency in different working conditions, but the complexity may pose challenges in maintenance and repair. For operations requiring frequent speed adjustments, this configuration enables optimal power management and fuel efficiency.
| Description |
10-speed gear/9-speed synchromesh |
TRANSMISSION 1
The Leyland 285 tractor features a 10-speed forward and 2-speed reverse transmission, enhancing its versatility for various agricultural tasks. The dry disc clutch provides reliable engagement and ease of maintenance but may require more operator skill to modulate compared to hydraulic clutches. This combination is advantageous for operations needing variable speed control, although limited torque handling at lower speeds may present challenges in heavy-duty applications.
| Type |
gear |
| Gears |
10 forward and 2 reverse |
| Clutch |
dry disc |
| Description |
Five gears, plus reverse, in two ranges. |
TRANSMISSION 2
The Leyland 285 tractor features a synchromesh transmission with 9 forward and 3 reverse gears, facilitating smooth shifting and better control during operation, especially in varying field conditions. The dry disc clutch enhances reliability but may require more frequent adjustments compared to wet clutches in demanding applications. This tractor is optimal for versatile farming tasks, thanks to its broad gear range and synchronized shifting capability, improving efficiency in both tillage and transport scenarios.
| Type |
synchromesh |
| Gears |
9 forward and 3 reverse |
| Clutch |
dry disc |
| Description |
Three synchronized gears, plus reverse, in three ranges. The synchro transmission became available in 1979. |
MECHANICAL
The Leyland 285 tractor features a 4x2 2WD chassis and a robust planetary final drive, providing efficient power transfer for various agricultural tasks. Its mechanical rear differential lock enhances traction in challenging terrains, while the hydraulic wet disc brakes improve stopping power and control under load. The 10-speed gear or 9-speed synchromesh transmission allows for versatile speed options, making it suitable for diverse operating conditions, although the lack of 4WD could limit performance in extremely muddy or steep environments.
| Chassis |
4x2 2WD |
| Final drives |
planetary |
| Differential lock |
mechanical rear |
| Steering |
power |
| Brakes |
hydraulic wet disc |
| Cab |
Cab standard. Insulated cab with heat after 1976. Open station available. |
| Transmissions |
10-speed gear/9-speed synchromesh |
HYDRAULICS
| Type |
open center |
| Pressure |
2600 psi/179.3 bar |
| Pump flow |
11 gpm/41.6 lpm |
TRACTOR HITCH
| Rear Type |
II |
| Control |
position and draft control |
| Rear lift (at ends) |
6000 lbs/2721 kg |
POWER TAKE-OFF (PTO)
| Rear PTO |
independent |
| Rear RPM |
540/1000 |
LEYLAND 285 TIRES
The Leyland 285 tractor features standard agricultural tires, with a front size of 7.50x16 and rear size of 14.00x34, ensuring optimal traction on various terrains. The larger rear tires offer improved stability and load capacity, making it suitable for heavy-duty fieldwork; however, the front tire size may limit its maneuverability in tight spaces. For best results, consider the terrain type and load requirements to optimize performance and reduce tire wear.
| Standard tires (ag) |
Front: 7.50x16. Rear: 14.00x34 |
DIMENSIONS
DIMENSIONS & TIRES
The Leyland 285 tractor, weighing 8000 lbs (3628 kg), offers a balanced weight distribution favorable for stability during heavy-duty operations. The combination of 7.50x16 front tires and 14.00x34 rear tires enhances traction in various terrains, making it suitable for both agricultural and industrial applications. However, the larger rear tires can present challenges in tight spaces, limiting maneuverability in confined areas.
| Weight |
8000 lbs/3628 kg |
| Front tire |
7.50x16 |
| Rear tire |
14.00x34 |
ELECTRICAL
| Ground |
negative |
| Charging system |
alternator |
| Charging amps |
34 |
| Battery volts |
12 |
| Battery AH |
128 |
