During construction, a machine is often needed that has high power and productivity, is easy to operate, but at the same time has low fuel consumption. The John Deere 850J bulldozer meets these characteristics. In addition, from the model range of its class, it is the one that has the greatest digging depth. The installed transmission does not allow the caterpillar track to reduce cross-country ability in unfavorable conditions, while guaranteeing maximum traction in various power modes, reducing fuel consumption and maintenance costs in relation to other types of transmission.
Bulldozer John Deere 850J
Most 850j models were purchased for waste transport applications. The developers took into account all the necessary details and elements that reduce the operator’s labor costs when working with equipment, as well as protective coatings that are resistant to any substances.
Navigation
- Peculiarities
- Modifications
- Technical characteristics and dimensions
- Engine
- Transmission
- Operator's cabin
- Hydraulic system
- Chassis
- Attachments
- Service
- Cost of new and used
- Analogs
To provide versatility, the machine also features a rotating blade (attachment), extended track length, the ability to install wide (914 mm) tracks for wetland use, and special features for landfill use.
Technical characteristics and dimensions
Technical characteristics of John Deere 850J:
| Parameter | Meaning |
| Operating weight | 18.053 t |
| Specific pressure on the base | 0.53 kg/cm2 |
| Track length | 2.77 m |
| Track width | 0.61 m |
| Track width | 1.88 m |
| Fuel tank volume | 371 l |
| Ground clearance | 0.41 m |
| Blade volume | 5.57 m3 |
Dimensions of John Deere 850J:
| Parameter | Meaning |
| Length | 4.99 m |
| Width | 2.49 m |
Engine
The company itself produces this power element. The model is called PowerTech 6081 and runs on diesel fuel. The installation consists of six cylinders that are constantly in a humid environment. They have a positive effect on the operating time of the engine, and also reduce the fuel consumption of the John Deere 850J to 320 g/kW per hour . The volume of the fuel tank is 370 liters. Engine power is 185 horsepower (138 kW), it is equipped with turbocharging and ONV. If during operation the motor refuses to work, the manufacturer is ready to fix the problem. In this case, repairs are carried out using special technology, and the service life of such an engine will be longer. The rotation speed of the unit is 1800 rpm with a torque of 800 Nm.
| Parameter | Meaning |
| Model | PowerTech 6081 |
| Number of cylinders | 6 |
| Working volume | 8.1 l |
| Power | 138 kW /185 l. With. |
| Rotation frequency | 1800 rpm |
| Cooling type | liquid |
To protect the engine from overheating, an automatic system is provided. It is responsible for the temperature of the oil in the engine, the operation of the transmission and the pressure in the hydraulic system (the volume of the hydraulic tank is 106 l). The protection system has three levels. John Deere 850J bulldozers supplied to the Russian Federation have specific functions. For example, they are adapted to work at low temperatures, using fuel produced in Russia. At the same time, the quality of exhaust gases complies with international standards. The maximum traction force of the bulldozer is 520 kN.
To carry out a technical inspection before starting operation, you need to look under the car. All necessary elements are visible from the ground. This arrangement also has a positive effect on the speed of maintenance.
Transmission
Includes two circuits. They are responsible for the racks, have an independent operating principle, and are also responsible for smooth gear shifting at speeds of 0-10 km/h. To avoid overload, an automatic system is provided that takes into account the load on the working body. The speed at which the John Deere bulldozer will move also depends on this indicator. The balance of the equipment is at a very high level, so work on large slopes of the territory cannot harm the operator or the machine itself, including all systems and elements.
Design and characteristics of models
The bulldozers are based on a steel box-section frame equipped with protective screens for the front and rear of the track. Tracks are used equipped with shoes of various widths, designed for normal or extreme working conditions.
All machines are equipped with a hydrostatic transmission, which reduces slipping and provides maximum traction throughout the entire speed range. The unit is controlled by a joystick; an automatic system is installed that controls the operating parameters of the transmission. Separate tanks and filters are used for the working fluid of the transmission and attachments. An on-board computer equipped with a screen provides diagnostics of all bulldozer systems.
The equipment uses blades of a straight, rotary or hemispherical configuration. The tool position is adjusted using a separate joystick. Wet service brakes are automatically activated when the power unit stops. It is impossible to start driving when the parking brake is applied. This function reduces wear on the mechanism and increases the service interval.
The John Deere 850J crawler dozer is equipped with a front blade with external push bars. The blade is mounted on a hinged support, allowing you to change the installation angle. Adjustment is carried out using hydraulic cylinders equipped with locks that prevent the tool from turning back.
Operator's cabin
The John Deere 850j bulldozer is equipped with a comfortable and ergonomic cab. The operator's seat is located in such a way that the viewing angle is maximum when performing any work operations. The cabin is sufficiently glazed to monitor the machine and working part. The monitor is responsible for displaying information coming from sensors, which allows you to constantly monitor the condition of the equipment. To control the movement of the bulldozer, a steering wheel is provided, and joysticks are responsible for the working part. There are two of them in the cabin. Their ease of use and comfortable location allow the operator to fully concentrate on the work process and not be distracted by searching for the required element.
John Deere 850 Operator Cabin
As for sound and vibration insulation, there are no complaints about the manufacturers. Excellent noise and vibration absorption is ensured by the tightness of the cabin and insulating materials. To protect the operator, FOPS and ROPS systems are provided.
John Deere 850J bulldozer operator cabin
DESCRIPTION AND PURPOSE
John Deere 850J bulldozers appeared on the Russian market quite a long time ago (over 5 years ago). The model became part of the J-series, consisting of 3 vehicles (750, 850, 1050), representing the medium and heavy traction class. The equipment received an ultra-reliable chassis, a modern control system and a unique transmission design. Consumers highly appreciated the unpretentiousness and versatility of the bulldozer.
The scope of use of the John Deere 850J turned out to be extensive. The main focus of the equipment's work was the movement of large masses of soil. A powerful and productive bulldozer coped with almost any task. The machine was used to fight forest fires, in the construction segment and industry, when laying pipelines and for demolishing buildings. The John Deere 850J could handle waste (transportation and recycling). The design took into account all the nuances that made it possible to reduce labor costs when operating the equipment, and the protective coating provided the necessary resistance to external factors.
The internal range of John Deere 850J is represented by several modifications. In addition to the basic model, it includes versions with a long running gear LT (Long Track), an extended running gear WT (Wide Track) and an extended long running gear WLT (Wide Long Track). An LGP (Low Ground Pressure) machine was also offered, characterized by low ground pressure.
Currently, the second generation of John Deere 850J II is available to consumers, which has a more advanced design, a modernized unit and is equipped with new types of dumps.
Chassis
The chassis of the vehicle is reinforced. This allows you to increase its strength and stability, as well as its service life. The tracks are made from Dura-Trax tape. It has increased resistance to external influences and consists of 80 links and 14 rollers.
John Deere 850J tracks
The materials for them have undergone thorough quality testing. To ensure smooth running, an automatic system is provided. In addition, it is responsible for the stability of equipment on large site slopes and for adjusting the power of the 850j bulldozer. Its parameters can be configured depending on the operating mode using a monitor located in the cabin. In this way, increased productivity and efficiency of equipment is achieved.
The equipment of the machine can change, not only the attachments, but also the chassis. Its types are LT, Standart, LGP, WT.
How to buy a John Deere 850J-II bulldozer
is a world leader in the development and production of special equipment for agriculture, construction, and various industries. Its history dates back to 1837. Strictly adheres to the principles of work: honesty, quality, duty, innovation. Many developed models of equipment of this brand have become benchmarks in their segments, in particular John Deere J-II series machines.
850J-II bulldozers are sold only by official dealers. You can find out the location of the nearest one on a special website: https://dealerlocator.deere.com/servlet/country=RU?locale=ru_RU.
Attachments
John Deere 850 bulldozer front blade
Dumps:
- in the shape of a hemisphere, with external push bars. Length 3550 mm, width 1981 mm, volume 11.09 m3;
- hemisphere shaped, rotatable. Length 4267 mm, width 1829 mm, volume 9.86 m3;
- straight rotary. Length 4013 mm, width 1829 mm, volume 9.71 m3.
Hydraulics are used to lift the working body. The knives are equipped with a cutting edge that increases productivity. If the cutting ability decreases, it must be dismantled and turned over.
Another type of attachment for the John Deere 850j can be a ripper. Its type is parallelogram, equipped with several teeth. The mounting location is at the rear, the maximum depth is 72 cm. The teeth have specific edges that extend the service life of the equipment.
Peculiarities
The main feature of the John Deere bulldozer is the installed transmission. Its operating principle is hydrostatic with full functioning. Thus, the car does not slip, has a smooth ride, and can use dynamic braking. In addition, the power does not decrease during the maneuver. Thanks to this type of transmission, the John Deere 850J has high performance, long service life and efficiency.
Bulldozer John Deere 850
Service
Transmission and hydraulic filters, as well as the battery, are located directly behind the large doors. This arrangement guarantees the speed of replacement or other manipulations with them. There are locks on the doors.
The cabin can tilt 70 degrees, which also allows access to the hydrostatic system. Separate tanks for hydraulic fluid are provided to avoid oil contamination in both systems at once.
To find out the reason for the equipment failure, just look at the monitor in the cockpit. It displays the error code and description in Russian. The code is necessary for the service center, and the description is necessary for the ability to troubleshoot minor problems yourself at the work site. This has a positive effect on reducing wasted time.
Design and characteristics of models
The bulldozers are based on a steel box-section frame equipped with protective screens for the front and rear of the track. Tracks are used equipped with shoes of various widths, designed for normal or extreme working conditions.
All machines are equipped with a hydrostatic transmission, which reduces slipping and provides maximum traction throughout the entire speed range. The unit is controlled by a joystick; an automatic system is installed that controls the operating parameters of the transmission. Separate tanks and filters are used for the working fluid of the transmission and attachments. An on-board computer equipped with a screen provides diagnostics of all bulldozer systems.
