Reliability, performance grinding systems and operating costs are the three most important factors when choosing a new forage harvester. High reliability guarantees a great uptime. Precision cutting is the consumer value for Your customers. And low operating cost provides greater return. Only harvesters 8000 series is able to provide the best conditions for Your business.
Heavy duty components enhance reliability, increase uptime and profitability
Bandwidth, quality of harvest, machine performance and overall profitability is always an important distinguishing characteristics of self-propelled forage harvesters. When selecting equipment, farmers consider critical parameters: machine size related to the degree of compaction and size of tires. Since the potential of the 7000 series machines in the existing configuration has already been achieved, a key requirement when designing machines is the 8000-series was a special configuration car for optimum weight distribution and maximum power.
The drive system has been optimized for maximum flexibility when setting the frequency of rotation of individual components and the timing of certain functions to achieve maximum quality harvest. The special design of the components prevents the loss of efficiency that can occur in certain driving modes.
Components were placed not only with regard to capacity requirements, requirements of modern farmers, but given the potential needs of future users.
In the manufacture of all components crossing tract apply advanced technology to increase wear resistance, to ensure continuous harvest throughout the season. Increasing the durability of the components significantly increases profitability.
Best-in-class performance of power distribution provides unmatched performance in the field
The unique design of the machine allows you to leverage the power
Energy-efficient components of the throughput path and running the machine during execution of the field work are critical to achieve maximum performance using the engine of some power.
On self-propelled forage harvesters 8000 series this problem is solved due to the unique layout of the nodes of the machine that provides a smooth trajectory of the following plant mass without sharp transitions.
On the 8000 series machines, a system for automatically determining the model of the harvester, which automatically sets the appropriate adjustments and presets stored in the controller of the machine.
The horizontal alignment of the header relative to the ground, the driveline is synchronized with the feeder or the optional dual drive header for synchronization of the feeder taking into account the running speed and timing screw infeed rollers, these technical solutions help to ensure the smooth movement of crop in the carrying path foragers. Bandwidth and quality of harvest are at the highest level.
System advanced control header and the driving system based on the signals from the harvester allow you to save preset position of the harvester due to mechanical sensors, eliminating the contact with the soil. All this provides the effect of a completely flat stubble fields.
Optional automatic clutch actuator connection provides unparalleled comfort when connecting the headers. The operator is required to move the locking lever and connect the quick coupler with electrical and hydraulic connectors.
Extra comfort and ease of maintenance to increase performance and reliability
Maintainability of the cooling system
Access to the entire cooling system self-propelled forage harvester 8000 series you can get in the service Bay in the Central part of the machine. Every component is easily available in one place of the machine, simplifying maintenance. Rotary radiator screen has a wide opening angle, which ensures easy maintenance. For maintenance of the air filters, no tools required. Access the print cartridges is on the left side of the machine in the service room.
Standard 1110-litre fuel tank and 40-gallon urea tank is located in the lower Central part and in the lower left part of the machine. This provides a low center of gravity, increasing stability and safety. Inlets of the two tanks is available from the steps of the cabin. Refilling is done from a single position.
Models 8700 and 8800 are equipped with a 1500-litre fuel tank without a tank of urea. Increased capacity fuel tank allows operators to work more productively and to stay longer in the field during the day. Increasing the capacity of the fuel tank increases uptime and time between refills.
Access to the cutting head
The concept of the block of the cutting head in the 8000 series provides two methods of access to the shear bar and the cutter head for inspection and maintenance.
Between the feed rollers and the housing of the cutting head has two connecting axes:
- the lower horizontal axis of the feeder, which together with the upper locking mechanism holds the paper feed roller to the cutting head;
- the vertical right axis.
If you leave the header attached to the machine and release the top locking mechanism with upper hinge with your finger when the bottom latches remain closed, the operator gains access to the shear bar and the knives through the V-shaped opening (35 degrees).
Disable header and release upper and lower locking mechanisms provide easy access through the hole of the door, feed roller, which is also optional equipment for forage harvesters series 6000 and 7000.
Transmission ProDrive and increased tire size increases the performance and reliability when working in conditions of soft loose soil
ProDrive is an advanced transmission that is used in the industry; however, the existing configuration on the machines 7000 series with a limited diameter tires have reached the limit of wet and loose soil.
Due to weather conditions is the timing of the harvest, and in some countries cars have to operate in conditions of high humidity and soft soil. Why clients choose forage harvesters able to harvest in different conditions.
Machine 8000 series with ProDrive transmission, taking into account the largest size of tires available on the market and optimized weight distribution, ensures maximum performance and reliability under soft soil.
Tyres maximum size have a diameter of 1067 mm and width 900 mm, they provide the best performance compared to the tires of the cars of the 7000 series. The tire contact patch 8000 series increased by 34 percent, which allows a better grip and reduce soil compaction.
Due to the high clearance of the harvesters 8000 series provide a guaranteed result, particularly when working on soft ground.
Optimal design and layout of components increases the efficiency of crop feed
Throughput tract ProStream
The key concept of the line of self-propelled forage harvesters 8000 series was the placement of all components crossing the tract in such a way as to remove any obstacles and create a path, the kinetic friction of the material which would be reduced to a minimum.
The carrying path begins with the fingers of the pick-up or index rows. Followed by the feed rollers. John Deere implement best practice on machines 7000 series.
The main feature of the front feed rollers is as follows: front upper feed roller forward by about 60 mm relative to the bottom of the drum that allows you to capture a lot with Reaper and feeding it into the gap between the front rollers. This feature is key when installing corn harvesters without the feed auger and guarantees that the mass is fed evenly, providing a uniform length of cut (LOC).
Further along the path of mass flow, before chopping drum, upper rear roller pogressive fed a lot by moving to a radial that delivers the highest cut quality. A layer of plant mass is subjected to an optimum pressing until the very last second before serving knives.
Since the beginning of the discharge knife pockets pressed mass is fed to the front chute, which helps to smoothly transfer the weight on the tray for grass.
The flow of the plant mass is on a constant curve between the chopping drum and the accelerator. Accelerator plant mass, the carrying path and spout form a unit discharge of the material. All of the components that contributes to plant mass integrated along this curve, which creates a completely free channel for the flow of the crop.
Due to the speed of rotation of 1800 rpm accelerator creates enough momentum for a reliable flow of plant mass when working with the large headers without excessive energy consumption. Instead of forcing the rotor of the accelerator plant the mass passes through the tray of the accelerator before the transmission through the transfer chute directly in the base of the spout, and then into the contour of the spout.
The plant mass collides with the intermediate front pads directly under the spout at a slight angle that allows to minimize the wear and tear of components and loss of inertia. This curve is this curve from the crossing path to the spout has been worked out as thoroughly as possible so that path components created minimal friction during the passage of the mass.
One of the main objectives was to ensure the availability of sufficient space for feet of the operator in the cab while maintaining the compact overall dimensions of the machine.
In the end, self-propelled forage harvesters 8000 series provide highly efficient flow of plant mass and the highest performance in their respective classes power with reduced fuel consumption (in liters of diesel fuel per ton of harvested plant mass). In conjunction with the Dura Line of self-propelled forage harvester 8000 series requires minimal maintenance and minimal operating costs.
Unloading plant material on the machine 8000 series
Accelerator plant mass
When you move into the trailer plant mass, it is necessary to raise the height more than 4 m in the interval between the accelerator outlet and the end of the spout. It is necessary to overcome a certain friction that occurs when moving and traversing the adjustments of the spout, prior to the mass from the spout. When working in the fields of corn farmers should be aware that the plant mass can be transported by air to a distance of 15 to 20 m when loading in a trailer following behind.
The task of the accelerator plant mass is to create a pulse of adequate power to ensure reliable unloading of plant mass under any circumstances. Precisely engineered hole air intake in the housing of the accelerator ensures optimum passage of mass in the spout when thermoprotector lets the natural flow of air from the grinding drum on the accelerator of the crop.
Movement of plant mass
Over the entire area of the transfer chute equipped with special high-quality wear-resistant plates that you can easily check and replace the battery servicing of the machine through the window of the accelerator supply. Unique manufacturing process ensures uniform and accurate specialized strengthening wear resistant plates, which effectively eliminate any wear in the transfer chute. The movement of the spout is a massive turning mechanism which is driven by a high-strength driving gear.
The mechanism of rotation of the spout self-propelled forage harvester 8000 series are equipped with special protective jaw clutch. It provides excellent protection of the spout in the event of a collision with an obstacle. However, the uncontrolled rotation and collision of the spout with the cabin under any circumstances impossible. The rotation sensor of the spout accurately tracks its position, even in the case of activation of the protective sleeve, and a mechanical rotation limiter provides additional protection for the system.
Installing header and following the ground contours
To attach the front coupler on the machines used 8000 series frame with lateral tilt. The design of the front plate and a modified scheme of installation of the headers John Deere due to various factors, including the following.
- The need to increase the degree of opening rollers and diameter of the front drum in connection with the performance increase of the new machines.
- The desire to build a device transverse tilt of the combine, as the increased feed roll of the machine would limit the angle of inclination of the header, overlapping the window of the material.
- The possibility of a passive adaptation to the terrain surface provided by a set of springs that return the frame to neutral position; optionally there is the possibility of active adaptation by a hydraulic cylinder, positioning the header based on the signals received from the sensors and superior control header on the header.
This change eliminates the use of various devices lateral tilting on the reapers. An additional advantage is a function of self-centering when tightening the cones on the frame (required for activating the automatic coupling of the drive shaft of the header). The Central lock of the header is a standard feature that comes with hydraulic coupler quick connect.
The spout on the harvester 8000 series modular design different. On the module base wear plates are a structural part of the component. This module is characterized by having a box-like structure, closed wear-resistant overlay. Too late discovered the wear lining will not damage the design of the spout, and after replacement, it will function like new.
Panel of the module base is segmented, which allows to eliminate the wear of its individual parts. In the standard configuration, all four pads of the module base is made of Hardox steel; however, for use in harsh environments you can order a version of Dura Line for the first and second sections.
If the ordered set HarvestLab 3000, the second section is equipped with a sensor near-infrared (NIR). In this case, the wear-resistant pad always comes in the version of Dura Line and is equipped with quick-release clamps for easy maintenance sensor HarvestLab 3000.
Installation of the sensor HarvestLab 3000 greatly simplified: the sensor is mounted in a special bracket which is attached to the body of the spout. Thanks to this sensor the near infrared band centered relative to the spout once, and when carrying out maintenance of the whole node is first removed from the spout, then simply mounted back without having to re-adjust the position of the sensor.
The available set of Central sections of the spout in different lengths which allow to take into account the width of the harvester self-propelled forage harvester. In order to maintain weight characteristics and weight distribution, the extension spout is made of aluminum alloy with a thin steel plate inside. Module flip of the spout is bolted to the Central section.
The model in the standard factory configuration is designed for picking up grass or corn with the use of 6-foot headers.
By order of the package of the harvester may enter the Central spout segments of different lengths for use with headers width 7.5, or 9 m.
Hardox is a trademark of SAAB.
In self-propelled forage harvesters 8000 series uses four feed rollers for feeding the crop. The top rollers are spring loaded by four springs. Their tension can be set manually. All four rollers are driven by the transmission with infinitely variable speeds. They have a synchronous speed to ensure smooth and uninterrupted supply to the shredding drum.
Front feed roll for supplying the crop with the harvester has been modified to extend the capabilities of adapting to the great variety of working conditions.
Front upper feed drum is now equipped with a replaceable and reversible gear plate. The ridges in the form of triangular teeth are part of the roller segments. For straps are tapered composite plates, mounted on a drum. Data wear pads also have the form of triangular teeth on one side and are smooth on the other, allowing you to perfectly tailor the drum, taking into account different harvesting conditions — when working in dry conditions and in wet and sticky alfalfa.
Front lower feed roller has a similar design, but the model scalloped trims with identical notches are optional components. Inside the front bottom feed rollers is a rectangular tube, which serves as a support for coils of metal and which is an optional detection sensor of stones, to ensure the full protection of the machine and of the crop.
The entire Assembly of the feeder is driven by the main transmission feed roller, which is located in the right side of the harvester, the housing of the gear of the lower rollers. It is powered from the hydrostatic motor. Stationary bottom rollers directly driven gear. Top moving rollers are cardan shaft from the gear of the lower rollers. This scheme is designed to create wider channels for the crop in the narrower body of the machine, equipped with one of the largest in the industry tires.
Machine protection from foreign object
A sensor detector rocks
B — sensor detector
This system is electromagnetic metal detection with multi-touch coil is standard on all self-propelled forage harvester from John Deere. In the case of activation of the indicators in the cab show the location of metal object in the layer of plant mass.
Optionally, this safety device can be supplemented with detection of the stones; in this case, the sensor is mounted in the rectangular tube inside of the front lower feed rollers. This sensor is connected with the second sensor in the right front upper feed rollers; sensors jointly detect attacks, which exposed the drum, and a sharp movement feed rollers.Both sensors are redundant, and as a result, the procedure checks for the presence of solid foreign objects significantly optimized, and the risk of false triggering of the detector of the stones is minimized.
When triggered the metal detector and detector of stones actuate the selective control valve (CCM) 1 on self-propelled forage harvester to automatically lift the roller or mesh on the pick-up grass. Re-activation of the feed rollers causes the rollers or lowering the mesh into the working position.
Controls and drive header
Self-propelled forage harvesters 8000 series serves a lot of vegetable on the chopping components.
Enhancements include automatic detection of the header, the design of adjustable and efficient hydrostatic drive of the harvester and feeder (finger picker), improved system following the ground contour, the latest technology protect the machine and the new design of the feed rollers.
Automatic detection of the header
Machine 8000 series is equipped with a quick coupling connection for connection of all hydraulic and electrical connections of the header. The closure of certain connectors in the coupling quick connection when connecting the harvester is a kind of code. This ensures clear identification of the header, which allows you to automatically apply the settings of the header stored in the respective controllers for self-propelled forage harvester. As well as to calibrate the header only once when you first connect.This allows the operator to instantly restore all settings specified during the last works on the harvest. All calibrations necessary for the proper operation of the harvester is automatically restored when you attach the header.
Hydrostatic drive header
Machines 8000 series harvester are driven by a hydrostatic mechanism. Hydrostatic pump on the main gearbox delivers power to the hydraulic motor located on the left side of the machine near the front of the bridge. Further, the propeller shaft transmits the torque to the clutch drive of the harvester.
Optional dual drive header provides the power distribution in the supply components: the fingers and the auger. In this case, the hydrostatic work would lead to the movement of the pick-up auger, and the secondary hydraulic work, additionally give food the fingers of the reel pick-up.
Stepless power variation of the drive allows you to easily synchronize the drive speed with the speed of the respective components on the combine. The operator can set in motion the entire header configuration with a constant speed, or the main drive of the harvester can be rotated with the required gear ratio, synchronized with the speed of the feed rollers of the harvester.
Dual drive provides independent synchronization of the feed auger of the harvester with feeding rollers and the fingers of the pick-up harvester with a forward speed of the machine during the harvest.