| Manufacturer | Zetor |
| Price | 16,500(USD) |
| Model | 7711 |
| Equipment Type | - |
| Factory | Brno, Czechoslovakia |
NEBRASKA TRACTOR TEST 1602 2
| Description | Diesel 10-speed 4WD September 11 - 30, 1986 Link: Nebraska Tractor Test 1602 file PTO performance Drawbar performance |
| Power at rated engine speed | 65.74hp / 49.0kW |
| Fuel use | 3.7gal/hour / 14.0l/hour |
| Power at rated PTO speed | 62.17hp / 46.4kW |
| Max power | 55.87hp / 41.7kW |
| Max pull | 7,484lbs / 3394kg |
ZETOR 7711 POWER
| Engine | 81hp / 60.4kW |
| Drawbar (claimed) | 58hp / 43.3kW |
| PTO (claimed) | 66hp / 49.2kW/75hp / 55.9kW (turbo) |
| Drawbar (tested) | 55.87hp / 41.7kW |
| PTO (tested) | 65.74hp / 49.0kW |
ENGINE DETAIL 1
The Zetor 7711, with its 3.9L diesel engine producing 73hp at 2200 RPM, provides a robust balance of power and efficiency for agricultural tasks. The 17:1 compression ratio and oil bath air cleaner system enhance durability and performance while managing engine cleanliness effectively. With a manageable coolant capacity of 14.5 quarts, it supports prolonged operation under various working conditions but may require additional monitoring for overheating in intensive uses.
| Description | Zetor 7701 diesel 4-cylinder liquid-cooled |
| Displacement | 239.3ci / 3.9L |
| Bore/Stroke | 4.02x4.72inches / 102x 120 mm |
| Power | 73hp / 54.4kW |
| Air cleaner | oil bath with pre-cleaner |
| Compression | 17:1 |
| Rated RPM | 2200 |
| Idle RPM | 600-2400 |
| Starter | electric |
| Starter volts | 12 |
| Coolant capacity | 14.5qts / 13.7L |
ENGINE DETAIL 2
The Zetor 7711 features a robust 4-cylinder turbocharged diesel engine with a displacement of 3.9L, offering 81hp at a rated RPM of 2200, which provides a good balance of power for medium-duty agricultural tasks. The oil bath air cleaner with pre-cleaner enhances engine longevity by effectively filtering out particulates, although oil maintenance is crucial to prevent contaminants. While its lower RPM may limit top-end power for certain high-speed applications, the engine's torque characteristics are likely well-suited for plowing and towing scenarios in varied terrain.
| Description | Zetor 7701 turbocharged diese 4-cylinder liquid-cooled |
| Displacement | 239.3ci / 3.9L |
| Bore/Stroke | 4.02x4.72inches / 102x 120 mm |
| Power | 81hp / 60.4kW |
| Air cleaner | oil bath with pre-cleaner |
| Rated RPM | 2200 |
ZETOR 7711 ENGINE
The Zetor 7711 features a 3.9L 4-cylinder diesel engine, providing a balance of power and efficiency suitable for various agricultural tasks. With an 18.5-gallon (70.0L) fuel tank, it allows for extended operation between refueling, which can enhance productivity in the field. However, operators should consider the potential for higher maintenance costs associated with a diesel engine and ensure proper fuel management to avoid downtime.
| Description | Zetor 3.9L 4-cyl diesel |
| Fuel tank | 18.5gal / 70.0L |
TRANSMISSION
The Zetor 7711 features a partially synchronized transmission, providing 10 forward and 2 reverse gears, which allows for versatility in varying field conditions. The inclusion of synchronized fourth and fifth gears enhances shifting efficiency at higher speeds, reducing wear on components during operation. However, the partially synchronized nature may pose challenges in low-speed shifts, necessitating mindful operator engagement, particularly in challenging terrain scenarios.
| Type | partially synchronized |
| Gears | 10 forward and 2 reverse |
| Description | Five gears, plus reverse, in high and low ranges. Fourth and fifth gears are synchronized. |
MECHANICAL
The Zetor 7711 features a 4x2 2WD chassis, which enhances maneuverability but limits traction on uneven terrain, making it suitable for flatter fields. Its power-assisted steering offers improved handling, especially under load, while the differential hydraulic dry disc brakes provide reliable stopping power. The 10-speed partially synchronized transmission allows for versatile speed control, making it effective for various agricultural tasks, although it may require more operator skill compared to fully synchronized systems.
| Chassis | 4x2 2WD |
| Steering | power assist |
| Brakes | differential hydraulic dry disc |
| Transmission | 10-speed partially synchronized |
HYDRAULICS
| Type | open center |
| Pressure | 2,321psi / 160.0bar |
| Valves | 2 |
| Total flow | 7.9gpm / 29.9lpm |
TRACTOR HITCH
| Rear Type | II/I |
| Rear lift | 5300lbs / 2404kg |
| Front Hitch | II |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Rear RPM | 540/1000 |
| Front RPM | 1000 |
ZETOR 7711 TIRES
The Zetor 7711 is equipped with Ag front tires size 7.50-16, providing adequate traction for steering and maneuverability in tight spaces. The versatile rear tire options (16.9-30, 16.9-34, 12.4-36, 13.6-36) allow for customization based on soil type and intended use, optimizing performance in both agricultural and heavier farm applications. A potential challenge is balancing tire size with appropriate drawbar load capacity, which may affect performance in certain field conditions.
| Ag front | 7.50-16 |
| Ag rear | 16.9-30/16.9-34/12.4-36/13.6-36 |
DIMENSIONS
| Wheelbase | 87.5inches / 222cm |
| Length | 149.6inches / 379cm |
| Width | 72.4inches / 183cm |
| Height (cab) | 104.3inches / 264cm |
| Height (exhaust) | 106.7inches / 271cm |
| Weight | 6900lbs / 3129kg |
| Ground clearance | 20.3inches / 51cm |
DIMENSIONS & TIRES
The Zetor 7711's 87.5-inch wheelbase provides excellent stability for both fieldwork and transport, making it suitable for medium-duty applications. With a weight of 6900 lbs, it offers robust traction, but could present mobility challenges in soft soil conditions. The tire specifications (6.50-16 front and 16.9-28 rear) are optimal for versatile operations, but may require adjustments for specific tasks, such as narrow row cropping or heavy tillage.
| Wheelbase | 87.5inches / 222cm |
| Weight | 6900lbs / 3129kg |
| Front tire | 6.50-16 |
| Rear tire | 16.9-28 |
7711 SERIAL NUMBERS
| Location | Serial number plate on the right side of the dashboard. |
ELECTRICAL
| Ground | negative |
| Charging system | alternator |
| Charging amps | 55 |
| Battery volts | 12 |