| Manufacturer |
Hesston |
| Price |
23,500(USD) |
| Model |
780 |
| Equipment Type |
Utility Tractors |
| Factory |
|
VARIANTS
NEBRASKA TRACTOR TEST 1294 2
| Description |
Diesel 16-speed 2WD October 19 - November 1, 1978 Link: Nebraska Tractor Test 1294 file PTO performance Drawbar performance Gear 4N used for power test |
| Power at rated engine speed |
70.36hp / 52.5kW |
| Fuel use |
4.5gal/hour / 17.0l/hour |
| Power at rated PTO speed |
66.30hp / 49.4kW |
| Max power |
62.88hp / 46.9kW |
NEBRASKA TRACTOR TEST 1386 2
| Description |
Diesel 8-speed 4WD April 21 - 29, 1981 Link: Nebraska Tractor Test 1386 file PTO performance Drawbar performance |
| Power at rated engine speed |
70.57hp / 52.6kW |
| Fuel use |
4.4gal/hour / 16.7l/hour |
| Power at rated PTO speed |
66.67hp / 49.7kW |
| Max power |
59.97hp / 44.7kW |
HESSTON 780 POWER
| PTO (claimed) |
70hp / 52.2kW |
| Drawbar (tested) |
62.88hp / 46.9kW |
| PTO (tested) |
70.57hp / 52.6kW |
ENGINE DETAIL
The Hesston 780 tractor, powered by the Fiat 8045 diesel engine, features a liquid-cooled, 4-cylinder configuration with a displacement of 3.7L (224 ci) and a compression ratio of 17:1, optimizing fuel efficiency and torque output, especially at rated RPM of 2500. The 4.03 x 4.33 inches bore/stroke ratio suggests a balance between power and agro-efficiency, making it suitable for various farming tasks. However, challenges may include maintenance of the electric starter system and ensuring suitable cooling, particularly during heavy workloads in warm climates.
| Description |
Fiat 8045 diesel 4-cylinder liquid-cooled |
| Displacement |
224ci / 3.7L |
| Bore/Stroke |
4.03x4.33inches / 102x 110 mm |
| Compression |
17:1 |
| Rated RPM |
2500 |
| Starter |
electric |
| Starter volts |
12 |
HESSTON 780 ENGINE
The Hesston 780 tractor is powered by a Fiat 3.7L 4-cylinder diesel engine, offering a good blend of torque and efficiency for moderate agricultural tasks. With a fuel capacity of 21.1 gallons (79.9 liters), it allows for extended operation periods before refueling, ideal for larger fields or prolonged activities. However, operators should be mindful of potential challenges in accessing parts or support for the Fiat engine outside specific regions, which could affect maintenance and downtime.
| Description |
Fiat 3.7L 4-cyl diesel |
| Fuel tank |
21.1gal / 79.9L |
TRANSMISSIONS OVERVIEW
The Hesston 780 tractor features an 8-speed partially synchronized transmission with a mechanical shuttle, offering improved ease of shifting for tasks requiring frequent direction changes, such as loader work. The 16-speed versatility allows for optimal torque management across various ground conditions, enhancing productivity. However, operators may need to adapt to the partially synchronized nature, which can pose a learning curve compared to fully synchronized systems for seamless operation.
| Description |
8-speed partially synchronized 16-speed 8-speed mechanical shuttle |
TRANSMISSION 1
The Hesston 780 tractor features a partially synchronized transmission with 8 forward speeds and 2 reverse, optimizing operational flexibility for various tasks. The synchronization of gears 3 and 4 enhances ease of gear shifting, particularly in high-demand scenarios such as field applications or transport. However, the limited gear selection might pose challenges in specific fine-tuning situations, necessitating careful driving strategy.
| Type |
partially synchronized |
| Gears |
8 forward and 2 reverse |
| Description |
Four gears with high and low ranges provide eight forward speeds. Gears 3/4 are synchronized in both ranges. |
SPEEDS 1
| Description |
With 18.4-30 rear tires |
TRANSMISSION 2
The Hesston 780 tractor features a 16-speed forward transmission with four ranges, allowing for enhanced torque management and operational flexibility across various terrains. The additional 4 reverse gears facilitate maneuverability in tight spaces, making it advantageous for tasks such as loading or unloading. However, operators may need to familiarize themselves with the shift patterns to maximize efficiency in varying field conditions.
| Gears |
16 forward and 4 reverse |
| Description |
Four gears with four ranges provides sixteen forward speeds. |
SPEEDS 2
| Description |
With 18.4-30 rear tires |
TRANSMISSION 3
The Hesston 780 tractor features a mechanical shuttle transmission with 8 forward and reverse gears, providing responsive control for various field applications. This setup offers advantages in maneuverability and efficiency during operations such as tillage or planting. However, operators may face challenges with gear shifting precision and smoothness compared to hydrostatic transmissions, particularly in tasks requiring frequent directional changes.
| Type |
mechanical shuttle |
| Gears |
8 forward and reverse |
SPEEDS 3
| Description |
With 18.4-30 rear tires |
MECHANICAL
The Hesston 780 tractor offers versatile 4WD and MFWD options, enhancing traction for various terrains, but the 2WD configuration might limit performance in adverse conditions. The differential hydraulic wet disc brakes provide superior stopping power while the power steering enhances maneuverability. The availability of a Supercomfort cab with air conditioning ensures operator comfort, making it suitable for extended operational periods in different climates.
| Chassis |
4x2 2WD/4x4 MFWD 4WD |
| Steering |
power |
| Brakes |
differential hydraulic wet disc |
| Cab |
ROPS standard, Supercomfort cab optional with air conditioning. Optional radio, cassette, and CB radio. |
| Transmissions |
8-speed partially synchronized 16-speed 8-speed mechanical shuttle |
HYDRAULICS
| Type |
open center |
| Pressure |
2702psi / 186.3bar |
| Valves |
2 |
| Pump flow |
11gpm / 41.6lpm |
TRACTOR HITCH
POWER TAKE-OFF (PTO)
| Rear PTO |
independent |
| Rear RPM |
540 |
HESSTON 780 TIRES
The Hesston 780 tractor features a flexible wheel configuration with 7.50-16 (2WD) or 12.4-24 (4WD) front tires and robust 18.4-30 rear tires, offering versatility for different agricultural applications. The 4WD option enhances traction and stability on varied terrain, making it suitable for tasks like plowing or heavy tillage, while the 2WD provides a cost-effective solution for less demanding applications. Be mindful that the choice between 2WD and 4WD can impact fuel efficiency and maintenance costs, necessitating careful consideration based on specific operational needs.
| Ag front |
7.50-16 (2WD)/12.4-24 (4WD) |
| Ag rear |
18.4-30 |
DIMENSIONS
| Wheelbase |
89inches / 226cm |
| 2WD Length |
135inches / 342cm |
| 4WD Length |
144inches / 365cm |
HESSTON 780 WEIGHT
| 2WD Operating |
5495lbs / 2492kg |
| 4WD Operating |
6200lbs / 2812kg |
| Ballasted |
10100lbs / 4581kg |
HESSTON 780 HEIGHT
| 2WD Hood |
59.5inches / 151cm |
| 4WD Hood |
60inches / 152cm |
| ROPS |
102.5inches / 260cm |
| Cab |
103.5inches / 262cm |
DIMENSIONS & TIRES
The Hesston 780 tractor features a compact wheelbase of 89 inches, enhancing maneuverability in tight agricultural spaces, but may compromise stability under heavy loads. Weighing between 5495 to 6200 pounds, it offers a significant ground presence, suitable for various field tasks, though operators should consider the impact of weight on soil compaction. The tire specifications, with a front size of 7.50-16 and rear 18.4-30, suggest a balanced traction capability, ideal for plowing and tilling; however, tire selection may influence performance on varied terrain.
| Wheelbase |
89inches / 226cm |
| Weight |
5495 to 6200 pounds |
| Front tire |
7.50-16 |
| Rear tire |
18.4-30 |
ELECTRICAL
| Charging system |
alternator |
| Charging amps |
45/55*The 55A alternator was used on tractors with cab and air-conditioning. |
| Battery volts |
12 |
