The Challenger MT851 tractor is powered by a MAN 15.3L 6-cyl diesel engine and 1844 lb-ft /2500.5 Nm of torque. It has a crawler drive configuration and a continuously-variable transmission transmission.
The engine is not specified in the data provided. However, based on the model of the tractor, the engine is likely to be a powerful MAN D3876 turbocharged diesel 6-cylinder liquid-cooled inline engine. This engine has a displacement of 933.7ci / 15.3L, a bore/stroke of 5.43x6.69inches / 138x 170 mm, and a rated power of 504.2hp / 376.0kW. It also has a high torque of 1844 lb-ft /2500.5 Nm, which is essential for heavy-duty tasks. The engine is equipped with an electric starter with a voltage of 24V and requires an oil change after every 500 hours of use.
The transmission of the Challenger MT851 tractor is a continuously-variable transmission (CVT) known as Accu-VT. This type of transmission provides infinite forward and reverse gears, allowing for smooth and seamless gear changes. The engine (gross) power of the tractor is 504.2hp / 376.0kW, which is transmitted to the wheels through the Accu-VT transmission. The transmission is designed to provide maximum power and efficiency, making it ideal for heavy-duty tasks. The transmission is not specified in detail in the data provided, but it is likely to be a reliable and efficient system.
The brakes of the Challenger MT851 tractor are an essential safety feature that ensures the tractor can stop quickly and safely. The brakes are not specified in detail in the data provided, but they are likely to be a hydraulic disc brake system. The MAN D3876 turbocharged diesel 6-cylinder liquid-cooled inline engine provides a high power output of 504.2hp / 376.0kW, which requires a robust braking system to bring the tractor to a stop. The brake system is designed to be reliable and efficient, ensuring that the tractor can stop quickly and safely even when carrying heavy loads. The brake system is also designed to be low maintenance, reducing the overall cost of ownership.
The steering system of the Challenger MT851 tractor is designed to provide precise and responsive control. The steering system is not specified in detail in the data provided, but it is likely to be a hydraulic power steering system. The MAN 15.3L 6-cylinder diesel engine provides a high power output of 504.2hp / 376.0kW, which requires a responsive and precise steering system. The steering system is designed to be easy to use, even for inexperienced operators, and provides excellent maneuverability. The tractor is equipped with a large fuel tank with a capacity of 350gal / 1324.8L and an exhaust fluid (DEF) tank with a capacity of 35.7gal / 135.1L, ensuring that the tractor can operate for extended periods without refueling.
Users of the Challenger MT851 tractor have reported some common problems, including issues with the chassis, cab, and transmission. Some users have reported that the crawler chassis can be prone to damage, particularly when operating in rough terrain. Others have reported issues with the cab, including problems with the air-conditioning system. Finally, some users have reported issues with the continuously-variable transmission (CVT), particularly with regards to reliability and durability. However, these issues are relatively rare, and most users report that the Challenger MT851 is a reliable and efficient tractor that is well-suited to heavy-duty tasks.
Users of the Challenger MT851 tractor appreciate its powerful engine, which provides a high power output of 504.2hp / 376.0kW. They also appreciate the smooth and efficient operation of the continuously-variable transmission (CVT), which provides infinite forward and reverse gears. The tractor's hydraulic system is also highly regarded, providing powerful and efficient operation. Users also appreciate the tractor's responsive and precise steering system, which provides excellent maneuverability. Finally, users appreciate the low maintenance requirements of the tractor, which reduces the overall cost of ownership.
Power | |
|---|---|
| Engine (gross) | 504.2hp / 376.0kW |
Engine Detail | |
| Description | MAN D3876 turbocharged diesel 6-cylinder liquid-cooled inline |
| Displacement | 933.7ci / 15.3L |
| Bore/stroke | 5.43x6.69inches / 138x 170 mm |
| Rated Power (ece R120) | 504.2hp / 376.0kW |
| Rated Rpm | 1730 |
| Torque | 1844 lb-ft /2500.5 Nm |
| Torque Rpm | 1450 |
| Starter | electric |
| Starter Volts | 24 |
| Oil Change | 500 h |
Engine | |
| Description | MAN 15.3L 6-cyl diesel |
| Fuel Tank | 350gal / 1324.8L |
| Exhaust Fluid (def) | 35.7gal / 135.1L |
Transmission | |
| Transmission | Accu-VT |
| Type | continuously-variable transmission |
| Gears | infinite forward and reverse |
Mechanical | |
| Chassis | crawler |
| Cab | Cab standard with air-conditioning. |
| Transmission | continuously-variable transmission |
Dimensions | |
| Wheelbase | 118inches / 299cm |
| Length | 266inches / 675cm |
| Width | 116.1inches / 294cm *Minimum width |
| Height | 148inches / 375cm |
| Weight | 42000lbs / 19051kg |
| Max Weight | 59000lbs / 26762kg |
| Ground Clearance | 14.1inches / 35cm |
| Gauge | 88 to 128inches / 223to 325 cm |
Hydraulics | |
| Type | closed center pressure-flow compensated |
| Pressure | 2900psi / 200.0bar |
| Rear Valves | 4 to 8 |
| Pump Flow | 58.1gpm / 219.9lpm/116.2gpm / 439.8lpm |
Electrical | |
| Ground | negative |
| Charging System | alternator |
| Charging Amps | 325 |
| Batteries | 3 |
| Battery Volts | 12 |
Power Take Off Pto | |
| Rear Pto | independent |
| Rear Rpm | 1000 / 1000E |
Dimensions And Tracks | |
| Wheelbase | 118inches / 299cm |
| Weight | 42000lbs / 19051kg |
| Description | tracks |