In certain situations, tracked vehicles are preferable to wheeled ones, allowing for more careful handling of soils during agricultural work. The ability to use wide implements for harrowing, cultivating, etc., combined with low maintenance costs, makes it indispensable. Challenger tractors, being high-performance, powerful equipment, fully confirm this.
Challenger tractor crawler and wheeled Challenger MT685D
Challenger tractors on wheels and caterpillar tracks are designed to perform mainly agricultural work with a heavy load, in conditions of difficult terrain, loose soils, in large areas of land cultivation, as well as in road construction (see Vogele asphalt paver), in logging, in reclamation.
Special equipment is equipped with additional trailed, removable, mounted units for harrowing, cultivating, plowing, sowing, loosening, and moving other machines.
The quality and constant improvement of developed designs, the use of new materials for manufacturing and technologies, fuel economy and maintenance costs, reliability and variety of Challenger models are serious reasons for the constant interest of individuals and large agricultural holdings in these machines. Just like in Bühler tractors.
Challenger Caterpillar Service
Challender tractors are super modern equipment, developed using the latest technologies and working with the help of intelligent systems. Therefore, it requires close attention and careful attitude. Maintenance must be carried out according to schedule with strict accuracy. The operator must be suitably qualified to operate this miniature spacecraft.
Systems monitor the work. It is enough to configure everything once and subsequent actions will be performed automatically. Special requirements apply to fuels and oils. Only high-quality materials should be used.
A little about the manufacturer
The birth of the Challenger occurred more than 200 years ago, when a steam engine was first used on a tractor. But the company got its name only in the late 90s of the 20th century after the invention of a powerful tracked tractor with high speed characteristics, which was called the “Caterpillar Challenger”.
And since those days, Challenger has become a celebrity in the field of agricultural machinery production, creating its own models that can answer the requests and needs of small agricultural farms and serious agricultural companies.
Now the machines are developed and manufactured by the largest American company AGCO , a manufacturer of construction and agricultural equipment.
MTZ-80 tractors are made in Russia, but are not inferior to competitors.
Popular models
All Challenger tractor models have the ability to:
- quick replacement of additional equipment;
- operation at increased speed and the ability to operate at extremely low speeds;
- the use of standardized connection devices for different models and mounted units;
- maintenance and quick repairs at the work site in the field.
To implement these capabilities, the design of the machines involves the use of:
- powerful engines with increased speed;
- continuously variable transmission with the possibility of smooth regulation ;
- possibility of installing a speed reducer;
- suspension with a spring system;
- unified rear design for mounting additional devices.
- turbochargers for cooling.
Wheeled vehicles
The series of popular MT600C and MT600D tractors on wheels are distinguished by increased power, a modernized frame design, and high performance characteristics.
The advantages of this model range are as follows:
- powerful high-performance Agco Sisu Power engines with an advanced automated EEM control system; The combination of EEM with the fuel system increased the power of the machines and saved fuel costs . As a result, the engine responds quickly and accurately to changes in the position of the accelerator pedal.
- comfortable ergonomic cabin with a high level of noise insulation;
- a continuously variable transmission with a continuously variable function allows you to operate the machine at different combinations of travel speed and engine speed. At the same time, the engine, maintaining the minimum required speed, ensures economical operation and high efficiency.
- choice of up to 4 speeds; one-touch cruise control function;
- no switching, delays or interruption of the power channel from “creeping” to transport mode;
- integrated front linkage (ILS);
- easy-to-use, ergonomic operating controls with a well-thought-out layout;
- digital information screens;
- kit for connecting an easy-to-use and inexpensive telemetry system AGCOMMAND for remote monitoring, storing a large amount of information that is viewed in real time;
- additional alternative control modes: pedal mode, harvesting mode, power control.
Specifics of the Challenger tractor operation in the video.
Pedal mode. To switch to auto control mode from the accelerator pedal, move the switch on the Control Center, located on the seat armrest, to another position. The speed and gearbox are automatically adjusted to provide the desired speed.
The harvesting mode allows the operator to maintain a certain speed, and use the gas pedal to regulate the speed of movement.
Power control mode allows the engine and gearbox to “autonomously” find the correct settings for a specific operation.
Adjusting to the required power, the rotation speed changes automatically. Thanks to this, the fuel consumption is reduced, the noise level is reduced, and the service life of the engine itself is increased. Convenience and comfort for the driver - without the need to independently adjust the rotation speed and speed mode - makes it possible to concentrate on working operations.
The most popular models from this series are MT685C and MT685D with a power of 340 and 380 horsepower, respectively.
The progressive Challenger tractor MT 685 is one of the largest and strongest machines of a classic design , which has incorporated new developments into its design that have reduced fuel consumption and reduced the toxicity of exhaust gases to minimum values.
Compare Challenger with MTZ tractor models - here.
Features of operation and maintenance
Challenger tractors are a new generation of equipment. This status requires special training during operation and maintenance.
With appropriate qualifications, the operator can only skillfully switch different modes, promptly change the parameters of work operations and observe the operation of the smart machine.
- In harvesting mode, the set speed is maintained
- Installation in power control mode gives the tractor the ability to independently determine the optimal settings
- The control module controls fuel consumption, regardless of rotation speed
- By pressing a single switch, any complex turn is automatically performed, which can be quite difficult to perform with conventional equipment.
- Thanks to the high hydraulic power, aggregation with the most powerful attachments is possible
- For tracked models, there is a choice of three types of tracks: for general agricultural work, with small grooves, for extreme conditions
- Optionally xenon headlights are installed on Challenger tractors
- The GPS system allows you to take full advantage of all the benefits of precision agriculture
Due to the high structural and technological complexity of the machines, their maintenance requires highly qualified personnel.
Challenger tractors are extremely demanding in terms of maintenance, quality of fuel, oil, and lubricants.
Special knowledge is required when operating and repairing on-board equipment and intelligent systems.
The cost of Challenger tractors produced in 2013-2015, depending on the modification and internal filling, ranges from 270,000-280,000 €.
Perhaps the high cost is the only drawback of the machines, but for real professionals this is not an obstacle.
Possible malfunctions:
The engine will not start: | Lack of oil or fuel; There is dirt in the air or fuel filter; The spark plug does not produce a spark; The carburetor is not adjusted correctly. |
Brakes do not work: | The free play of the pedal has increased (adjust its position); The brake disc or pad is worn out (replace the relevant parts). |
Starter does not work: | Broken or poor contact of the wire (solder or connect it); Weak battery charge (charge it); Short circuit (clean the commutator surface or replace the brushes); Poor contact of the magnetic switch (tighten the switch travel by 2-3 turns). |
Challenger tractor range
Challenger tractors are a popular type of agricultural machinery that is in wide demand both in the agricultural sector and in construction and forestry. This series of equipment is of the tracked type. Such devices are able to cope with the most difficult working conditions and have a high working life. Working with such equipment is always a great pleasure for many farmers.
Terrion tractor 5280 disadvantages and other data are indicated in the article.
Application area
The main area of application is work in the field, with a high load. These tractors can be combined with disc harrows, wide-cut cultivators, subsoilers, seeders, etc. This tractor will also be used in logging, road construction, and land reclamation. High traction characteristics allow this equipment to be used on any terrain and in any conditions.
Photo of the Challenger tractor from the MT500D series
Wide tracks provide a large contact area, which minimizes the load on the soil, its compaction, does not disturb the soil structure and maintains its productivity.
Passport data of the Challenger tractor
As for the technical qualities, thanks to them it is possible to give the equipment in question such characteristics as maneuverability, productivity and versatility in operation.
Power element
The latest model of the MT875C tractor contains the latest model engine, the power of which reaches 609 l.m. To increase it, a turbocharger is used. Thanks to it, it is possible to clean the air that enters the combustion chamber.
Fuel is supplied in a small volume directly into the combustion chamber. The engine operates with maximum efficiency, as it has fuel consumption control.
Also, Challenger tractors of such models as MT845 C and MT855 C have an engine with a power of 455 hp. The fuel tank capacity is 18.1 liters.
When developing the power unit, manufacturers took into account such a factor as environmental friendliness. For this reason, during operation of the tracts, a minimum amount of harmful emissions is released. Of course, this quality was achieved at the expense of engine power, and this is especially valuable.
Tractor MTZ 82 video and technical data of the unit are indicated in the article.
In the video there is a Challenger tractor:
Hydraulic system
In order for the hydraulics to function fully, a standard pump was provided with a volume of 166 l/min. An optional unit is also available. Its output is 223 l/min. With their combined work, it is possible to realize all the tasks that must be solved when using this type of technology. The presence of high power indicators allows the use of even equipment whose hydraulic needs are especially in demand.
What the trailed forage harvester Polissya KDP 3000 looks like and how to use it can be found out in this article.
The standard equipment of the tractor includes 4 hydraulic valves. They evenly distribute the potto of hydraulic fluid to all components, taking into account their needs.
Specifications
The main technical characteristics are listed in the table:
Model | MT745C | MT755C | MT765C | MT765D | MT845C | MT865C | MT875C |
Engine | CAT® C9 ACERT™ | AGCO POWER™ | CAT® C15 ACERT™ | CAT® C18 ACERT™ | |||
Power nom/max. hp | 269/290 | 301/334 | 320/355 | 350/382 | 430/473 | 510/583 | 570/609 |
Max. torque N*m at 1400 rpm | 1337 | 1498 | 1586 | 1540 | 2134 | 2525 | 2828 |
Engine displacement, m3 | 8,8 | 8,4 | 15,2 | 18,1 | |||
Fuel capacity tank, l | 447 | 1150/1250 | |||||
Transmission | Powershift 16F/4R | ||||||
PTO rpm | 1000 | ||||||
Load capacity of the rear linkage, kg | 11758 | 14000 | |||||
Hydraulic performance pump, l/min | 167,5 | ||||||
Track length, mm | 2438 | 2950 | |||||
Track width, mm | 635-762 | 698-762-914 | |||||
Own weight, kg | 10300 | ||||||
Maximum weight, kg | 17640 | 18597 | 19141 |
Engine
The following engines are used in the Challenger MT700S and MT800S series tractors:
- Caterpillar C9 ACERT - 6-cylinder turbocharged diesel engine, power range varies from 269 to 320 hp.
- Caterpillar C15 ACERT - 6-cylinder turbocharged diesel engine with power up to 580 hp.
- Caterpillar C18 ACERT is the most powerful 6-cylinder turbocharged diesel engines from this manufacturer.
- AGCO POWER is a new line of motors produced by the Finnish company Sisu. These engines were specially developed for agricultural machinery; they are low noise, economical, and compact. Their service interval has been increased to 400 hours. Many parts used by this manufacturer in their engines with different numbers of cylinders are unified.
All engines are characterized by low levels of exhaust emissions, efficiency, reliability and ease of maintenance.
Caterpillar engines require oil changes at intervals of up to 500 hours, depending on the model, characteristics and conditions of use of the engine.
Control system
The proprietary TMC (Tractor Management Center™) control system ensures the operation and control of all systems as efficiently as possible. Control is carried out using a 7-inch color display installed in the cab. One-Touch functionality allows you to perform one of 35 different attachment sequences, such as automatically performing all attachment actions when turning at the end of a runway.
Power Management adjusts engine and transmission parameters for the most efficient and economical operation.
The Intellitronics Network™ computer system controls the operation of the engine, coupling device, PTO, and transmission, combining them into one network. Optionally, the tractor can be equipped with an AutoGuide™ navigation system using GPS. With its help, the accuracy and parallelism of passes across the field are automatically maintained without operator intervention. This system is integrated into the tractor's Intellitronics Network.
Hydraulics
Challenger tractors are equipped as standard with a hydraulic system with four hydraulic valve sections, which can be optionally supplemented with two more, allowing the use of attachments with high hydraulic power consumption. A special feature is the use of the Intellitronics Network system, which optimizes the distribution of flows. In addition, the same computer system controls the operation of the engine, coupling device, PTO, transmission, combining them into one network.
The standard hydraulic pump, which provides a capacity of 166 l/min, can be replaced with a more efficient one with a capacity of 223 l/min. Performance varies depending on load.
The use of an elevated oil tank (EOR) ensures the required pressure regardless of operating conditions.
Caterpillars
Challenger track tractors use a unique, yet simple design, Mobil-Trac, which provides optimal track tension and longevity. The Opti-Ride suspension ensures a smooth ride, efficient overcoming of obstacles, and comfort. The MT700 series tractors use 5 rollers on each side, and the MT800 series use 6.
The tracks are made of fabric and steel reinforced rubber, in which the number of layers is 4 or more. Depending on operating conditions, 3 types of tracks are offered: General (general purpose), Extreme Agricultural (for heavy work) and Extreme Application (for extreme conditions). Their width may vary.
The driving rollers have a chevron notch, allowing them to quickly self-clean from falling clods and stones, and preventing slipping in relation to the caterpillar. Medium rollers are made using high-strength polymer materials.
Cabin
Comfort, visibility, ease of operation - these are the qualities that the cabins of equipment produced by this brand possess.
Conditions for long-term work are provided by:
- Surround-Flow 12-duct heating and air conditioning systems.
- Deluxe VRS or Comfort seats, equipped with suspension to protect against impacts and buffeting from rough surfaces.
- Steering column with a handle for quick steering, with adjustment for both height and tilt.
- Tractor controls located on the seat armrest.
- Soundproofing.
- Xenon headlights for night work.
Challenger tractor cab
The ergonomics and functionality of the operator's workplace correspond to the modern level and are among the best in comparison with other leading manufacturers.
The lineup
Today, this type of technology is in wide demand. The model range is also presented in a wide range, so every farmer will be able to choose the appropriate unit.
Device MT 500D
This type of machine is wheeled. The power of the power unit reaches 140-225 hp. The series includes 5 machines, each of which is characterized by its efficiency and reliability in terms of operation.
The design of all models assumes the presence of a Power Boost system. Thanks to it, it is possible to get maximum power at minimum speed. This is extremely important when carrying out arable activities on virgin soil.
Rotary mower for MTZ 80, price and other data are indicated in the article.
The maximum speed for this model is 50 km/h. Each car of this model range requires the installation of a fuel tank, which is characterized by an increased volume. Thanks to this, the tractor can operate for a long time without refueling. The gearbox is mechanical, has 16 steps. Load capacity is 10,000 kg.
MT 600C
The presented series includes such a popular model as the MT 685. This machine is characterized by economical fuel consumption and reduced emissions of exhaust gases into the environment. The design of the unit involves the installation of a diesel engine, which is capable of developing a power of 370 hp. Engine capacity is 8.4 liters.
It is necessary to indicate that the fuel container installed on the tractor has a capacity of up to 1100 liters. Gearbox – mechanical, continuously variable transmission scheme. The car is also equipped with a TechStarCVT gearbox. Thanks to it, it is possible to achieve stepless regulation of operating modes.
How to use the Psk 3 plow is described in the article.
MT 700C and MT 700D
This model range belongs to tracked type vehicles. Each vehicle is equipped with a PowerShift 16F/4R transmission. The diesel engine is capable of developing a power of 8.4-8.8 hp. The capacity of the fuel tank is 447 liters.
The crawler-type mover is characterized by a large coverage area. Thanks to this quality, the machine has excellent maneuverability and maneuverability. Work can be carried out even on swampy ground. The crawler tractor can be equipped with a specially designed transmission for rubber-reinforced tracks.
You can find out what the price of a trailed grain harvester is from the article.
MT 800C
This series includes powerful and heavy tractors. The diesel engine is capable of developing power up to 430 hp. Soil treatment can be carried out under any climatic conditions.
In the photo - MT 800C:
This series includes such a popular tractor as the MT 865. It has a well-thought-out chassis and PowerShift transmission. This type of machine is characterized by excellent performance and good traction. The tractor model in question is today considered the most powerful in the world.
Agricultural tractors
- Offer (840)
- Demand (107)
I sell skidding tractor TDT-55A with pusher
Delivery by road transport or railway platform.
Technical characteristics of the TDT-55 tractor
Type tracked tractor, skidding Nominal traction force, kgf3000 Tractor structural weight, kg9500 Specific metal consumption, kg/hp153 Number of gears: ..forward5 ..backward1 Speed range, km/h: ..forward2.48 10.99 .. back2.31 Track, mm1690 Base, mm2320 Ground clearance, mm555 Specific soil pressure, kgf/cm20.45 Engine brand SMD-18, D-245-16 Engine type4-cylinder, four-stroke with vortex chamber mixture formation Rated power at 1500 rpm, hp 62 Torque reserve, %, not less than 15 Specific engine fuel consumption, g/e. l. With. part 195 Cylinder diameter, mm120 Piston stroke, mm140 Cylinder displacement, l6.33 Engine weight, kg675 Fuel tank capacity, l120 Starting the enginestarter TDT logotype in the middle transparent
Skidding tractor TDT-55 is a tracked vehicle designed for stacking and removal of large items.
Engine Type Diesel with direct fuel injection with turbocharging and intercooler Model D-245S2 (MMZ) Engine power, kW (hp) 81 (110) Nominal speed, rpm 2200 Number of cylinders, pcs. 4 Working volume, l 4.75 Maximum torque, Nm 440 Specific fuel consumption at rated power, g/kWh 249 Torque reserve coefficient, % 25 Fuel tank capacity, l 135
Transmission Dry clutch, double-disc Mechanical gearbox, synchronized Number of gears: forward/reverse 16/8 Speed: forward/reverse 2.3-35.2/4.03-16.5
Rear PTO: independent I, rpm. 540 independent II, rpm. 1000 synchronous, travel rpm 3.5 PTO control hydromechanical
Hydraulic mounted system Separate-modular, with a hydraulic lift, providing power, positional, mixed and height control of the position of agricultural implements Load capacity of the rear hitch on the suspension axis, kg 4200 Maximum pressure, M.
Wheeled agricultural tractor with rear linkage NU-3, rear independent two-speed PTO. Cabin with air conditioning and audio system. Gearbox with on-the-fly switching without interruption of the power flow using hydraulic clutches with friction discs, number of forward/reverse gears 12/4 (16/8 on request). A single-plate clutch LuK (Germany) is installed, the engine is D-262.2S2. Tires 23.1R26, 28LR26 (optional, ultra-low pressure). It is possible to install a system of power and position control of the attachment, as well as a hydraulic system with a closed center, sensitive to load (Load Sensing System), which allows it to be mounted with any domestic and imported implements that require adjustment of the oil flow in sections.
Features of XTA tractors
According to its functional characteristics, the XTA tractor has the widest scope of application. Can be used in agriculture to perform a wide range of types of work: plowing, cultivation, harrowing.
The SCOUT T-254C tractor with cab is a compact tractor for performing agricultural, utility and construction tasks. Equipped with a heated cabin and a three-point suspension of the first category with a load capacity of 420 kg.
Features of the SCOUT T-254S tractor, model 2022:
-Loading and unloading cargo weighing up to 400 kg using a front loader with a jaw bucket.
- Digging holes and trenches with a mounted excavator.
-Cleaning streets from snow and dirt with a mounted reinforced brush up to 160 cm wide.
-Working with old trees - chopping tables and branches with a diameter of up to 12 cm. Using a mounted shredder with a hydraulic gripper of the material.
-Snow removal with hydraulic rotary blades of the TX series up to 160 cm wide.
-Transportation of goods by trailers with a carrying capacity of up to 2.5 tons.
-Agricultural work: plowing, harrowing, sowing and harvesting, inter-row cultivation, cultivation.
-Mowing hay and dense vegetation, raking, tedding, collecting material into bales with a baler.
Description Minitractor Fighter T-15 PROMOTION UNTIL NOVEMBER 22! The Fighter T-15 minitractor is a representative of budget equipment, but with impressive technical characteristics that are superior to some expensive models. The mini tractor has become popular among small farms and household plots due to its easy operation, wide functionality and small size. The tractor is suitable for cultivating the soil, planting and harvesting crops, removing weeds and clearing snow.
Advantages Gearbox with separate differential lock for each wheel. Three speeds forward, one reverse on each row (high and low gear range). As a result - 6 forward and 2 reverse speeds; The hydraulic system is single-vector, but with four hydraulic valve positions: up pressure + down pressure + locking + float mode; Single-cylinder diesel engine XT-15 with water cooling; The long-stroke rear hydraulic cylinder lifts and deepens attachments; Instrument panel with pointer.
The Rusich T-21 minitractor is the most powerful of the Rusich line of belt mini-tractors. The mini tractor is equipped with a 22 hp single-cylinder diesel engine. liquid cooling, differential lock, three-section hydraulic distributor with floating mode, rear view mirrors, front and rear fenders, full tractor transmission, reinforced rear axle, oil pressure sensor, coolant temperature sensor and ammeter. The Rusich T-21 minitractor is intended for use on small farms, personal plots, personal subsidiary plots, etc.
The tractor comes complete with an active 140 cm rototiller and a double-furrow plow with a support wheel.
Tractor paintwork
To paint metal surfaces, a special paint for humid climates is used, which prevents corrosion.
The single-cylinder engine of the Rusich T-21 minitractor is very economical and consumes a fairly small amount of fuel, and eg.
Control system
To achieve high maneuverability, Challenger tractors have a special system (control devices), thanks to which it is possible to make a turn in one touch.
The electronics of this system are capable of recording all vehicle movements and driver actions. It also keeps a record of the lifting and lowering of equipment, and the performance of the power take-off mechanism. To activate the turning mechanism, you need to press the switch, then the machine will carry out the entire series of events that are so often set manually.
How to use a manual carrot seeder is indicated in the article.
The Tractor Management Center system is very important. It allows you to coordinate the functioning of all components and elements of the tractor, as a result its work becomes coordinated and productive. The management process is characterized by its simplicity. It is equipped with an intuitive interface. And this greatly simplifies the process of controlling the machine.
The Challenger model, like the T 70c tractor, is a technique that today has shown itself on the positive side in various industries. The machine is used for agricultural activities, construction and forestry. A characteristic feature of this manufacturer is its extensive model range, which allows you to purchase one or another option without much difficulty.
Model range of Challenger tractors - features and equipment
Tractors from the famous Dutch brand Challenger are known all over the world due to their enviable reliability. cross-country ability, the highest working life and the presence of many high-tech design solutions. Thanks to these and many other advantages, equipment from the Challenger company annually wins the highest places in sales, not inferior to analogues from other, more well-known brands.
The great popularity of agricultural machinery from the Challenger company is primarily due to the high cross-country ability and productivity of these tractors. Models of this brand are adapted to work in the most difficult terrain, they can easily withstand work under frequently changing loads, and can solve problems where other tractors are simply powerless.
An important advantage of Challenger models is their low cost. Compared to other tractors from the same traction classes, Dutch tractors cost their customers 20–30% less. At the same time, the quality and endurance of Challenger equipment is always at the highest level.
Trailed equipment
- Single disc seeders
- 9800
Challenger pneumatic single-disc seeders with working widths from 9 to 18 m are universal. This allows them to be used not only in work with any soil cultivation technology (traditional, minimal, zero), but also with different sown crops: grains, small seeds, etc. A quick transition from crop to crop is ensured by easy adjustment of the tillage depth and seeding rate. One of the features of these seeders is their unpretentiousness in operation. But the main advantage is performance. The Challenger 9800 Series allows you to plant at high speed without sacrificing quality thanks to its unique opposing opener design.
Tractor Challenger MT 865C - detailed description of the unit
The main areas of application of this high-quality model are the most labor-intensive agricultural work, which requires high endurance and a solid reserve of power from the equipment. This tracked unit is capable of performing deep plowing of virgin soil, harrowing, as well as sowing and towing large trailers. The video will tell you more about the practical capabilities of the Challenger MT 865C tractor.
This Challenger tractor is powered by a powerful Caterpillar C18 ACERT engine that meets Tier III standards. Among the distinctive features of this internal combustion engine are the presence of turbocharging, a Common Rail system, as well as full control of operation using electronic sensors. Thanks to the power control system provided by the manufacturer, perfect control over the crankshaft speed was achieved. This significantly increased the performance of the unit without increasing fuel costs.
The model is equipped with a Caterpillar transmission designed specifically for crawler tractors. The mechanism is capable of stably transmitting enormous motor force directly to the tractor track mechanism.
Features of this Challenger model include:
- maximum power – 534 hp. With.;
- internal combustion engine working volume – 18.1 l;
- fuel tank capacity – 1249 l;
- number of travel speeds – 16 forward/4 rear;
- maximum lifting capacity of the hinged mechanism – 14 tons;
- operating weight - 22.68 tons.
The tractor is equipped with a new patented chassis that guarantees smooth movement of the unit over rough terrain.
Reviews
Egor , Sumy region: “The Challenger MT-865 tractors first appeared with us 5 years ago. It was just a blast. The machines practically work themselves. We bought them used after 5 years of operation, but all the systems are like new.” Vladimir Ivanovich , Kuban: “Modern machines are simply unrealistic on our fields. I worked for two seasons on the Challenger MT585D tractor. A very reliable engine, it has a rev limiter and will not allow you to go beyond the limit. Among the shortcomings - the compressor leaks, the air conditioner breaks down a couple of times. Spare parts are expensive."
Challenger MT 685D tractor - design features
This wheeled tractor from the Challenger brand is in high demand when plowing particularly large areas. The model is distinguished by its ability to develop solid speed when using the largest mounted implements, which significantly increases the productivity of the unit.
The Challenger MT685D tractor is equipped with everything necessary for effective work in the field. The design of the model provides a powerful, economical Caterpillar engine, complemented by an upgraded continuously variable transmission. All mechanisms and parts of the tractor are made of materials resistant to corrosion and wear, which significantly increases their service life.
This Challenger tractor is easy to use in practice. Detailed operating instructions allow any beginner to start operating the agricultural machine.
Tractor parameters include:
- maximum power – 385 hp. With.;
- engine working volume – 8.4 l;
- fuel tank capacity – 690 l;
- maximum lifting capacity of the hinged mechanism – 10.32 tons;
- operating weight – 15 tons.
The powerful hydraulic system of this wheeled tractor makes it possible to use all known mounted and semi-mounted implements for working with it, and the high traction force allows large-sized trailers to be mounted on the model. The closest competitor to this model among domestic units is the LTZ tractor in modification 155.4.
Big Bud 747 - the world's largest tractor
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The largest bulldozer in the world
The largest tractor is the American-made 760-horsepower Big Bud 747. This power is provided by a Detroit Diesel diesel engine (volume - 24.1 liters), running on 16 cylinders. The main drawback of this huge giant is its small tank, which holds only 380 liters. This volume is hardly enough for 10 minutes of work. Big Bud 747 is equipped with a 6-speed gearbox and the brake system is air. The 8-wheeled machine weighs 45.5 tons, its length reaches 8.2 m, height - 4.2 m and width - 6 m. The model can be mounted with a plow 30 m wide (plowing depth exceeds 3 m).
Photo source: fb.ru The height of the world's largest tractor is 4.2 meters
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The largest forklift in the world
Interesting fact: the giant was released in 1977 and is still No. 1 in terms of power and size. Its inventor, Ron Harmon, planned for the car to be mass-produced, but it never came to that. It is worth noting that after 20 years of service, Big Bud 747 was refurbished. Now it is equipped with a more powerful 900-horsepower engine. The tank was also replaced: the new volume was 567 liters. It is known that today the tractor continues to work in American fields.
Model range of Challenger tractors
Crawler tractors are in demand in the industrial, construction and agricultural sectors, where powerful and productive machines are needed. The Challenger series tracked units cope with difficult tasks, work in harsh conditions and have a long service life.
Advantages of operating Challenger tractors:
- Integrated Auto-guide automatic driving system, which saves work resources;
- Highly efficient control system;
- The AgCommand telemetry system ensures that each node communicates with a central computer;
- The C3000 terminal allows you to control the application of liquid fertilizers and various chemicals;
- The Mobil Trac system and specific rubber-reinforced tracks reduce surface pressure;
- High performance of the unit.
Description
Designed to work in conjunction with mounted, semi-mounted and trailed machines and implements on farms, in fields, for harvesting all types of crops.
Mobil-trac chassis, track width and track.
The Mobil-trac system combines the speed, agility and versatility of rubber tires with the benefits of a crawler track - good traction, high flotation, smooth ride and low ground pressure. The original Opti-Ride suspension system guarantees a smooth ride both in the field and on the road. The design uses Marsh Mellow springs, which separate the “hard crossbar” from the frame that connects the Mobil-trac system to the chassis. The front axle can tilt up to 8°, allowing each track to rise independently up to 150mm at its centre. The middle wheels of each of the tracks can also be hung without support. The MT800B model has two pairs of rotating carriages. Standard track size is 2286 – 3251 m.
Any of the models takes up less than 3 m in width in operation and during transportation.
Intellitronics electronic control system and tractor control center.
The control center is mounted to the driver's right on a console that rotates with the seat for ease of access. The control center includes the monitor and all controls for the transmission, hydraulic system, hitch and power take-off. The online tension control system shows the pressure applied to each belt:
- the upper limit has been reduced, which allows you to warn of possible belt damage due to excessive load;
- a new lower limit has been set, which makes it possible to avoid belt sagging;