| Manufacturer |
Sheppard Diesel |
| Price |
- |
| Model |
SD-3 |
| Equipment Type |
- |
| Factory |
Hanover, Pennsylvania, USA |
SHEPPARD DIESEL SD-3 POWER
| Engine |
32 hp/23.9 kW |
| Plows |
3 |
ENGINES OVERVIEW
The Sheppard Diesel SD-3 tractor features two engine options: a 3.1L and a 3.5L 3-cylinder diesel, providing a balance of power and fuel efficiency suitable for various agricultural tasks. The compact design allows for enhanced maneuverability in tight spaces, making it ideal for small to mid-sized operations. However, potential buyers should be aware of the limited horsepower compared to larger tractors, which may affect performance on more extensive fields or heavy-duty applications.
| Description |
Sheppard Diesel 3.1L 3-cyl diesel/Sheppard Diesel 3.5L 3-cyl diesel |
ENGINE DETAIL 1
The Sheppard Diesel SD-3 tractor features a robust 3-cylinder, liquid-cooled diesel engine with a significant compression ratio of 22:1, which enhances thermal efficiency and fuel economy. With a displacement of 188.5 ci (3.1 L) and 32 hp (23.9 kW) at a rated RPM of 1650, this tractor is well-suited for light agricultural tasks and small-scale operations requiring moderate power output. However, the indirect injection system may result in slightly lower power delivery compared to direct injection systems, making it less suitable for heavy-duty applications.
| Description |
Sheppard Diesel 6B/diesel/3-cylinder/liquid-cooled |
| Displacement |
188.5 ci/3.1 L |
| Bore/Stroke |
4.00x5.00 inches/102 x 127 mm |
| Power |
32 hp/23.9 kW |
| Fuel system |
indirect injection |
| Compression |
22:1 |
| Rated RPM |
1650 |
| Starter type |
electric |
ENGINE DETAIL 2
The Sheppard Diesel SD-3 tractor features a robust 6E 3-cylinder engine with a displacement of 3.5 L, delivering a balance of power and fuel efficiency ideal for agricultural applications. Its indirect injection fuel system enhances combustion efficiency, reducing emissions but may lead to slightly lower power output compared to direct injection systems. The 4.25x5.00 inch bore and stroke ratio suggests excellent torque characteristics, making it suitable for tasks requiring high pulling capacity.
| Description |
Sheppard Diesel 6E/diesel/3-cylinder/liquid-cooled |
| Displacement |
212.8 ci/3.5 L |
| Bore/Stroke |
4.25x5.00 inches/108 x 127 mm |
| Fuel system |
indirect injection |
SHEPPARD DIESEL SD-3 ENGINES
The Sheppard Diesel SD-3 tractor features two engine options: a 3.1L and a 3.5L three-cylinder diesel engine, providing a balance between power and fuel efficiency. The compact design allows for versatility in various agricultural applications but may limit payload capacity compared to larger tractors. Ideal for small to mid-sized farms, operators should consider the potential challenges in performance on more demanding terrain due to its size.
| Description |
Sheppard Diesel 3.1L 3-cyl diesel/Sheppard Diesel 3.5L 3-cyl diesel |
TRANSMISSIONS OVERVIEW
The Sheppard Diesel SD-3 tractor features a 4-speed transmission with a total of 8 effective ratios, allowing for versatile speed adjustments to match diverse agricultural tasks. This drivetrain setup enhances operational efficiency and adaptability, particularly in varying terrain conditions. However, operators should be aware of potential complexities in gear selection, which may require a learning curve for optimal performance.
| Description |
4-speed gear/8-speed |
TRANSMISSION 1
The Sheppard Diesel SD-3 tractor features a 4-speed forward and 1-speed reverse gear system, which allows for efficient handling of various agricultural tasks. The dry disc clutch provides a reliable engagement but may require more maintenance compared to wet clutches, especially in high-torque applications. This tractor is ideal for moderate towing and field work but may face challenges in heavy-duty conditions due to its limited gear options.
| Type |
gear |
| Gears |
4 forward and 1 reverse |
| Clutch |
dry disc |
TRANSMISSION 2
The Sheppard Diesel SD-3 tractor's transmission offers 8 forward and 2 reverse gears, providing flexibility for various agricultural tasks and maneuverability in tight spaces. The broad range of forward gears allows for optimal speed selection based on the load and terrain, enhancing efficiency during operations. However, the limited reverse options may pose challenges in applications requiring frequent backward movement or when navigating confined areas, necessitating careful planning during operation.
| Gears |
8 forward and 2 reverse |
MECHANICAL
The Sheppard Diesel SD-3 tractor features a 4x2 2WD chassis, which provides adequate traction for lighter agricultural tasks but may struggle in uneven terrains or heavy soil conditions. Its manual steering and mechanical drum brakes offer simplicity and ease of maintenance but could lead to decreased maneuverability and braking efficiency under load. The 4-speed gear/8-speed transmission allows for versatile speed adjustments, making it suitable for both fieldwork and transport scenarios, albeit with potential challenges in operator comfort during prolonged use due to the open operator station design.
| Chassis |
4x2 2WD |
| Final drives |
spur gear |
| Steering |
manual |
| Brakes |
mechanical drum |
| Cab |
Open operator station. |
| Transmissions |
4-speed gear/8-speed |
POWER TAKE-OFF (PTO)
SHEPPARD DIESEL SD-3 TIRES
The Sheppard Diesel SD-3 tractor features a narrow front tire size of 6.00-16 and rear tire size of 11x38, providing a balanced weight distribution suitable for various agricultural tasks. The configuration enhances maneuverability in tight spaces, while the larger rear tires offer improved traction and stability on uneven terrain. However, the tire sizes may limit compatibility with certain implements, challenging versatility in diverse farming applications.
| Ag front |
6.00-16 |
| Ag rear |
11x38 |
DIMENSIONS
| Wheelbase |
92 inches/233 cm |
| Length |
131 inches/332 cm |
| Height |
70.25 inches/178 cm |
| Weight |
4196 lbs/1903 kg |
| Front tread |
9.25/12.75 inches/23/32 cm(tricycle) |
| Rear tread |
54 to 82 inches/137 to 208 cm |
DIMENSIONS & TIRES
The Sheppard Diesel SD-3 tractor features a compact wheelbase of 92 inches, facilitating maneuverability in tight agricultural spaces. At a weight of 4,196 lbs, it offers stability during field operations, but its relatively light frame may limit traction in certain conditions, particularly when utilizing larger rear tires (11x38). Overall, the combination of front and rear tire sizes suggests suitability for moderate towing and fieldwork but may require additional weight or ballast for heavy-duty applications.
| Wheelbase |
92 inches/233 cm |
| Weight |
4196 lbs/1903 kg |
| Front tire |
6.00-16 |
| Rear tire |
11x38 |
BELT PULLEY
| Diameter |
8.25 inches/20 cm |
| Width |
7.5 inches/19 cm |
| RPM |
1458 |
| Speed |
3048 ft/min/929.03 meters/min |
