Challenger track tractors optimal for tough work
Published: Feb 25, 2010 1:05 pm - 0
From http://www.challenger-ag.com/
For more than 20 years, Challenger track tractors have been the leaders in their field in terms of technology, productivity and horsepower. Now, Challenger, offered at Butler Cat dealers, has raised the bar again with the new MT800C Series.
All five models in the lineup feature even higher horsepower ratings, the advanced technology that comes with a new ISOBUS system and an impressive array of features designed to make you even more productive and efficient. Among them are a new digital dash display that’s easier to read; a redesigned tractor management center that provides simpler and more intuitive operation and a new hydraulic system with a higher degree of control, higher flow and greater adaptability.
The Challenger MT800C Series starts with a large diameter driver that provides higher ground clearance and maximum belt-to-driver grip. Check out the MT800C Series for yourself and you’ll discover it’s one strong, intelligent machine that’s light on its feet.
Engines
The MT800C Series boasts outstanding performance from new Tier III Caterpillar® C15 and C18 ACERT® technology six-cylinder diesel engines that are both turbocharged and after-cooled. In fact, the 18.1 liter (1,105 cu. In.) C18 model, used in the MT865C and MT875C, is the largest displacement engine in the agricultural tractor market.
With up to 42 percent engine torque rise and continued torque rise down to 1,400 RPM, the Cat® C15 and C18 ACERT engines deliver exceptional pulling power in all conditions. Under heavy loads, the MT875C, for example, has the ability to generate more than 630 engine horsepower (470 kW) — more than any other tractor in its class.
While most engine manufacturers resorted to other methods to meet aggressive Tier III standards, including exhaust gas recirculation, Caterpillar took a completely different path, developing its unique ACERT technology. Through better control of the combustion process, Cat ACERT technology engines meet emission standards without sacrificing power, performance or reliability.
For better cooling, improved fuel consumption and lower emissions, engines are fitted with cast iron wet liners with plateau-honed surface and mid support, which allow for a higher top ring position. The cross-flow cylinder head also features four valves per cylinder for excellent air and exhaust transfer.
One Touch!" Headland Management System The intuitive One-Touch!" management system gives you the power to initiate several tractor and implement functions at the same time at the touch of a button on the transmission controller. Easy to operate, the One-Touch!" system uses the ISOBUS network to record and execute a myriad of repeated functions, such as transmission shifting, accelerating or decelerating the engine, raising and lowering the 3-point hitch, engaging and disengaging the PTO and raising and lowering an implement. The system is particularly valuable for headland maneuvers in row-crop applications or repetitive operations. Pressing the One-Touch control button at the end of the field will start the raise or work sequence. The result is less operator fatigue and faster turn-around of applications, as well as eliminating the possibility of errors. Thanks to the new technology, One-Touch also allows you to adjust or add a function without having to re≠record the entire sequence, saving both time and frustration.
Tractor Management Center (TMC)
Challenger’s unique Tractor Management Center (TMC) does everything the name implies, plus a lot more, thanks to its new ISOBUS network. As the international standard for electronic communications used in agriculture, ISOBUS allows any compliant tractor to “talk” to any compliant implement, no matter the manufacturer.
It also allows the tractor components to communicate information much quicker, with fewer wires and connections. The benefits are countless but among those you’ll appreciate most are unsurpassed control; fewer circuits and fuses; faster, easier diagnostics; easier mapping and crop management, and greater peace-of-mind.
Comprised of a color screen, 12 soft keys and a rotary dial, the ISOBUS-based TMC monitor allows the operator to monitor all tractor, engine and transmission functions; check and adjust hydraulic settings; keep track of service intervals; manage or adjust the Auto-Guide2 system, and collect valuable data that can later be used to create detailed work plans and records … all from one single location. And that doesn’t include the control it provides of ISOBUS-compliant implements.
Monitor and control any ISOBUS-compliant implement without the need for additional monitors or control boxes in the cab. Simply plug and play for seamless operation.
Maintenance
Challenger® engineers understand your hectic schedule and have made it easy to perform routine maintenance. Service and convenience features include:
Hydraulics
Equipped with an all-new hydraulic system, MT800C Series tractors offer more flow, more versatility and more efficiency than ever before. It starts with a new common midstack design that centralizes the control valves for all tractor functions simplifying the entire system.
A new valve body design allows for quicker hook-up and easier maintenance. Four electric over hydraulic circuits are standard on all models with a fifth or sixth valve available as an option for more demanding applications.
The closed center, load-sensing, pressure-flow compensating system has an industry leading 43.5 gal./min. (164.7 lpm) pump as a standard feature. For the truly demanding applications, like large planters or scrapers, Challenger offers a 59 gal./min. (223.3 lpm) pump option that doesn’t make you choose between pulling power and hydraulic flow.
ISOBUS control of all remote implement valves also allows the operator to electronically adjust flow rates, adjust timed detents and precisely adjust individual valve operation from the cab’s Tractor Management Center. The redesigned system, which utilizes a separate controller built into each valve, even allows the operator to direct continuous flow up to 36 gallons/min. (136.3 lpm) through any one coupler. This is important in applications like seeding, where uninterrupted oil flow to a hydraulically driven vacuum system is critical.
For more than 20 years, Challenger track tractors have been the leaders in their field in terms of technology, productivity and horsepower. Now, Challenger, offered at Butler Cat dealers, has raised the bar again with the new MT800C Series.
All five models in the lineup feature even higher horsepower ratings, the advanced technology that comes with a new ISOBUS system and an impressive array of features designed to make you even more productive and efficient. Among them are a new digital dash display that’s easier to read; a redesigned tractor management center that provides simpler and more intuitive operation and a new hydraulic system with a higher degree of control, higher flow and greater adaptability.
The Challenger MT800C Series starts with a large diameter driver that provides higher ground clearance and maximum belt-to-driver grip. Check out the MT800C Series for yourself and you’ll discover it’s one strong, intelligent machine that’s light on its feet.
Engines
The MT800C Series boasts outstanding performance from new Tier III Caterpillar® C15 and C18 ACERT® technology six-cylinder diesel engines that are both turbocharged and after-cooled. In fact, the 18.1 liter (1,105 cu. In.) C18 model, used in the MT865C and MT875C, is the largest displacement engine in the agricultural tractor market.
With up to 42 percent engine torque rise and continued torque rise down to 1,400 RPM, the Cat® C15 and C18 ACERT engines deliver exceptional pulling power in all conditions. Under heavy loads, the MT875C, for example, has the ability to generate more than 630 engine horsepower (470 kW) — more than any other tractor in its class.
While most engine manufacturers resorted to other methods to meet aggressive Tier III standards, including exhaust gas recirculation, Caterpillar took a completely different path, developing its unique ACERT technology. Through better control of the combustion process, Cat ACERT technology engines meet emission standards without sacrificing power, performance or reliability.
For better cooling, improved fuel consumption and lower emissions, engines are fitted with cast iron wet liners with plateau-honed surface and mid support, which allow for a higher top ring position. The cross-flow cylinder head also features four valves per cylinder for excellent air and exhaust transfer.
One Touch!" Headland Management System The intuitive One-Touch!" management system gives you the power to initiate several tractor and implement functions at the same time at the touch of a button on the transmission controller. Easy to operate, the One-Touch!" system uses the ISOBUS network to record and execute a myriad of repeated functions, such as transmission shifting, accelerating or decelerating the engine, raising and lowering the 3-point hitch, engaging and disengaging the PTO and raising and lowering an implement. The system is particularly valuable for headland maneuvers in row-crop applications or repetitive operations. Pressing the One-Touch control button at the end of the field will start the raise or work sequence. The result is less operator fatigue and faster turn-around of applications, as well as eliminating the possibility of errors. Thanks to the new technology, One-Touch also allows you to adjust or add a function without having to re≠record the entire sequence, saving both time and frustration.
Tractor Management Center (TMC)
Challenger’s unique Tractor Management Center (TMC) does everything the name implies, plus a lot more, thanks to its new ISOBUS network. As the international standard for electronic communications used in agriculture, ISOBUS allows any compliant tractor to “talk” to any compliant implement, no matter the manufacturer.
It also allows the tractor components to communicate information much quicker, with fewer wires and connections. The benefits are countless but among those you’ll appreciate most are unsurpassed control; fewer circuits and fuses; faster, easier diagnostics; easier mapping and crop management, and greater peace-of-mind.
Comprised of a color screen, 12 soft keys and a rotary dial, the ISOBUS-based TMC monitor allows the operator to monitor all tractor, engine and transmission functions; check and adjust hydraulic settings; keep track of service intervals; manage or adjust the Auto-Guide2 system, and collect valuable data that can later be used to create detailed work plans and records … all from one single location. And that doesn’t include the control it provides of ISOBUS-compliant implements.
Monitor and control any ISOBUS-compliant implement without the need for additional monitors or control boxes in the cab. Simply plug and play for seamless operation.
Maintenance
Challenger® engineers understand your hectic schedule and have made it easy to perform routine maintenance. Service and convenience features include:
- The tilt-up hood raises from the front, providing excellent access to key service points like batteries and cooling cores. A battery disconnect, which cuts electrical power to the tractor is now standard.
- The dual-element air cleaner is conveniently positioned directly above the engine for easy inspection and replacement.
- Hydraulic and powertrain oil sight gauges at the rear of the tractor let you check the level at a glance. * No tools are required to swing open the cooling cores to remove trash build-up or blockage. Checking and topping off engine oil is easily accomplished from ground level on the left side of the tractor.
- The cab air filter, conveniently located under the cab roof overhang is easily removed without tools for cleaning or replacement.
- A large toolbox, integrated into the steps, carries tools up to 24 inches (610 mm) long with a total capacity of 150 pounds (68 kg).
Hydraulics
Equipped with an all-new hydraulic system, MT800C Series tractors offer more flow, more versatility and more efficiency than ever before. It starts with a new common midstack design that centralizes the control valves for all tractor functions simplifying the entire system.
A new valve body design allows for quicker hook-up and easier maintenance. Four electric over hydraulic circuits are standard on all models with a fifth or sixth valve available as an option for more demanding applications.
The closed center, load-sensing, pressure-flow compensating system has an industry leading 43.5 gal./min. (164.7 lpm) pump as a standard feature. For the truly demanding applications, like large planters or scrapers, Challenger offers a 59 gal./min. (223.3 lpm) pump option that doesn’t make you choose between pulling power and hydraulic flow.
ISOBUS control of all remote implement valves also allows the operator to electronically adjust flow rates, adjust timed detents and precisely adjust individual valve operation from the cab’s Tractor Management Center. The redesigned system, which utilizes a separate controller built into each valve, even allows the operator to direct continuous flow up to 36 gallons/min. (136.3 lpm) through any one coupler. This is important in applications like seeding, where uninterrupted oil flow to a hydraulically driven vacuum system is critical.
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