John Deere 9660 STS combine harvester – description and properties

John Deere-9660 STS Harvester Overview

American products John Deer is by far the most common harvesters in the world. The brand uses high-tech devices and innovative methods to develop equipment. No other brand can match the quality of its machines. John Deere, which combines reliability, high efficiency and indispensability, is in steady demand.

For consumers who choose a simple and productive harvester, the John Deere 9660 is the best option. The series contains several models, with which you can choose the best shift for certain purposes. The machine has a strong wind quality and is characterized by minimal grain loss even when harvesting creeping and low-growing plants.


John Deere 9660 series models are suitable for Russian climatic conditions. The combine harvester is not only high quality, but also shows great fuel economy. The model is characterized by all the advantages of the John. The machine is distinguished by its durability and maneuverability, availability of automatic operation mode and good visibility (panoramic glazing and illumination, which allows to clean at night).

The John Deere 9660 is used for harvesting grasses, followed by termination and harvesting. Many optional adapters are available for the combine to harvest soybeans, corn, sunflowers and other crops.

Cab overview

The cabin is equipped with air conditioning. The large panoramic air duct has an ether coating, which also reduces the exposure of the cab to ultraviolet radiation. On the front beard of the cab there are several digital displays, real-time information on machine status, most important technical properties, etc. Electrically operated announcements.

The cab of the John Deere 9660 CTS harvester

Technical characteristics


  • Length (without cutterbar) – 8980 mm;
  • Width (without reaper) – 3770 mm;
  • Height – 3940 mm.

Weight of the combine is 13523 kg. The equipment is equipped with a width of 4300-9150 mm.

Operational characteristics:

  • Diameter of the rotor – 750 mm;
  • Rotor speed – 210-1000 rpm;
  • Cleaning area – 4,6 m²;
  • Speed of rotation of cleaning fan – 500-1200 rpm.
  • Area of separation – 12.37 m²;
  • Grain hopper capacity – 8800 l;
  • The length of the screw conveyor – 6500 mm;
  • Loading height – 4400 mm;
  • Discharge speed – 77,5 l / s.

The transport speed of the combine can reach 31 km/h, the working speed – 10 km/h. The combine can form straw in thin layers of 10 m or compact swaths.


The John Dir 9660 is powered by a four-stroke liquid cooled diesel engine of its own manufacture. The engine is notable for its reliability and efficiency. The engine is turbocharged and has an order of cylinders. Special “Posie-TROK” system reduces power loss during operation in various conditions and extends operating life.

Engine specifications:

  • displacement – 8.1 liters;
  • Rated power – 234 (320) kW (hp);
  • Nominal rpm – 2200 rpm;
  • Number of cylinders – 6.

John Deere-9660 STS Harvester Overview

John Deere 9660 STS harvester overview

John Deere-9660 STS harvester is a typical representative of the powerful, well-equipped multipurpose harvesters. It is designed for combine harvester with grain crops, as well as with sunflower and corn. With the right harvester this model is also ready to work and collect stunted species of plants and especially creeping ones.

Technical characteristics

The hero of our review is one of the youngest combinations of the most powerful family from the famous American manufacturer. The maximum speed when harvesting can reach 10 km/h, which is an excellent indicator, because the width of the coffers varies from 4.5 to 9.3 meters.

Key features and layout
purpose universal
Type of movement bikes
Gross weight, t 13.5
cab closed type
engine Located in the database
Base Culture Model John Deere

The base harvester model and standard configuration of the machine, as well as the internal layout, are designed for harvesting predominantly grain crops from grain legumes. The functionality of the combine determines its main elements of the device, as well as features of the layout. The engine is located behind the operator’s cabin, which, in turn, is placed forward. Such a solution gives a better view of the harvesting process and frees up space for bulky mechanisms.

Length with safety belts in working/transport position, m 9.85
Width with harness in working/transport position, m 7.66
Height with crop in working/transport position, m 3.94

John Dira dimensions can vary greatly and depend on several factors. The first of these is the width of the cod. It can vary from 15 to 30 feet, increasing the area of crops cultivated in a single pass. The length of the machine is also related to the size of the header. The largest header is designed for corn earing. As an option, the combine can be equipped with a double front header, which greatly reduces ground pressure and increases tillage ability on soft, clayey soils.

GARDENA Power Max 42E: Description, specs and instructions for use
Type diesel
For marking John Deere
model 9660
Rated power, hp. 305
Number of cylinders 6
Working volume (not less), l 8,1
tank volume, l 945

The harvester is equipped with a 6-cylinder diesel engine with turbocharger. The engine is made at one of the company’s facilities and is a proprietary design of American engineers. Rated power of the power unit is 305 hp.

Design and maintenance

John Deere 9660 is made according to the classic scheme, but in terms of design and characteristics it differs from most models of the brand.

Combine design features:

  • A tilt chamber with a floating van with high capacity, with which you can remove high crops. The extended drive facilitates stable crop delivery under heavy loads and serious operating conditions. The tilt chamber has 6 adjustments longitudinally and transversely to adapt to soil topography and crop parameters. On the John Dir 9660, the cutterbar angle can be adjusted for efficient harvesting of low plants and light crops. Adaptation is built through the parallelism of the ground with soil of a different size than the base soil. The special “Headerk” electrofootball system automatically adjusts harvesting parameters and allows you to work with a slope on uneven soil or fields. Information about the features of the system and to facilitate work is transmitted to the monitor in the combined cabin. The elongated inclined chamber also improves the visibility of the working area of the MDB. Hydraulic lines and electrical wiring are gathered in a single compartment. Therefore, no additional tools are required to install/remove the code. Unlike other combinations, the John Deere 9660 has an additional locking control unit.
  • The most powerful reversing mechanism. When reversing, the tiller rotates in reverse;
  • State-of-the-art threshing system. The latest John Dir 9660 models feature the STS threshing system, which consists of 3 sections. The first section distributes the weight and floor surface, the second section distributes the thresher, the third section distributes the separation of grain left in the straw. The STS modification uses a 3-speed asymmetric jacketed rotor with which the bread mass is released during rotation. For this reason, the washing is improved and the fuel consumption is reduced. In addition, there is no unnecessary chopping of the straw. The drum combination consists of 5 blades. Three types are used for the John Deere 9660. The coarse wire one is used for corn and soybeans, the fine wire one for sunflowers, grain, corn, rye, rice and rape when humidity is up to 25%, the rod tunnels are for collecting soybeans, peas and corn on grain;
  • Cleaning Mechanism. The system includes auger transport, fine and coarse cleaning, a pre-cleaner and a rotary fan. The latter directs a dense, even flow of air over the entire area. The pre-cleaner removes about 40% of the floor and discharges the main floor. Strong funding augers move the mass in the grate. The STS modifications also contain Corder, which regulates the clearance from the cab.
  • The grain hopper has a two-color lid that eliminates moisture. The lid is opened from the control panel in the cab. Grain is discharged in each position of the discharge auger.
  • Straw, is stacked on a bale or along the field. Thanks to several speed zones, the optimum operating mode can be selected. For coarse grinding fixed or conventional knives are used, for fine grinding special equipment meters are used.

The John Deere 9660 has a comfortable cab with systematically adjustable cab temperature. Large glazing area (5.2 m²) provides excellent visibility. The machine controls are arranged in a logical order. There are four separate monitors in the cab with control buttons on the right side of the vertical column. In contrast to most modern modifications, the combination is easy to operate and has a difficult to perceive instruments and heavy menu system. Even a beginner will be able to work on it, and the time for learning is minimal.

See also: review of the tractor Belarus MTZ-1523. Description, technical characteristics and user ratings

Advantages of John you 9660:

  1. Shelf life of units and parts;
  2. Combination of spare parts with other branded products;
  3. Automation of most processes;
  4. Control of the main parameters from the cabin;
  5. High quality factory assembly;
  6. Business.
Review of power tillers and trimmers from the brand Makita. Features, reviews

Disadvantages of the John you 9660:

  1. Weakly informative operation manual;
  2. High cost of combines, consumables, spare parts and service.

Maintenance of the John Deere 9660 harvester does not cause problems. Intervals are displayed on the onboard computer. When service intervals occur, the corresponding information is shown on the display. Modular design of the red nut, straw and fan allows easy access to components. All harvester belts and chains are conveniently located and service lights highlight items so they can work even in low light.

John Deere 9660 STS – a versatile high-performance combination

John Deere combine harvesters are very popular in our country. High reliability, economical consumption of fuel, excellent packing and small grain losses during harvesting, including creeping and low-growing plants are the main reasons of such popularity. The manufacturer constantly increases the model range of equipment, regularly upgrades and implements innovative solutions.

What is interesting about this series?

The John Deere 9660 STS harvester can be attributed to a number of models that feature great features. It was the result of selecting the best features of the previous models and eliminating all the shortcomings. One of the main advantages is the high-quality threshing system. It significantly reduces the load on the current unit of the machine and its motinematics. Other important advantages are:

The high productivity of the model, ensured by the complete computerization of the system;

Maximum combination of combinations during operation;

Increased capacity of the fuel tank (960 l) allows the machine to work for a long time.

The high-speed screw conveyor reduces downtime for unloading the product.

It is impossible not to mention the time savings. The complexity and amount of service work is greatly reduced, with only maintenance required every 50 hours.

At the same time, John offers you the 9660, the most powerful engine in its series, which allows it to do all the work on AGRO plants.

key features

With a weight of 14 tons, the Combi is defined on the floor by its small size, high cross-country capability, excellent maneuverability and minimum pressure. The machine is equipped with a six-cylinder Mark i-Six diesel engine, which can develop 305 hp.

The engine can produce high torque at medium speeds, which reduces fuel consumption. Liquid cooling ensures maximum efficiency and reduces engine temperatures even when working at high speeds for long periods of time.

The following features are worth noting as far as the harvesters of this series are concerned:

The ability to select the optimal angle of attack with a wide range of linkage adjustments,

elongated feeder housing

One hundred strong swath to the rear,

Innovative three-round threshing system.

Grain tank has a volume of 8800 liters, thanks to which you unload less often and save time.

operating parameters

Harvest is fed by conveyor belt with 520 rpm. Its width is 1,397 mm. The threshing is controlled by a spherical rotor with length of 3130 mm and diameter of 750 mm, which operates at the speed of 210 to 1000 rpm.

Threshed grain together with straw goes to the rotary separator, where it is separated and cleaned from chaff and other impurities by blowing with powerful air flow. The air is blown by a fan at 500 to 1200 rpm, cleaning an area of 4.6 square meters.

The combine driver chooses the harvesting technique himself, distributing the cut straw in thin layers over the mown area or rolling it to form tight swaths.

grain handling

The finished product enters the hopper, from which it is retrieved cyclically by the auger loader. Its average capacity is 77.5 liters per second. Several size variants of the unloading mechanism allow you to choose the most suitable one for your specific situation. The maximum height of grain feeding is 4.4 meters.

Due to the high output of the engine, the work can be combined with the transportation of the harvested grain to the back of the truck.


If we talk about the main advantages of John Deere harvesters over most analogues, first of all, the following should be highlighted:

compliance with agronomic agronomic requirements;

Increased durability and reliability of all components and assemblies;

all engine and transmission parameters are controlled by computer;

Keeping gardening equipment in working condition before winter

Most spare parts are the same as in previous machines of the series, which simplifies the repair;

operating basic and auxiliary operations are controlled by computers.

High-quality lighting equipment not only provides a high level of safety, but also increases the efficiency of work in poor light conditions.

Important advantages of the 9660 STS, many users say, are the excellent factory-assembled design, high functionality and low fuel consumption. And last but not least, the combine features a successful component arrangement and is able to operate at maximum load for an extended period of time without failure. As practice shows, even after many years of active operation the machines remain in excellent technical condition without requiring major repairs.

Disadvantages of grain harvesters

If we talk about the disadvantages of this equipment, we can highlight its high cost. And this applies equally to the combine itself, as well as to all spare parts, components, accessories, consumables and maintenance.

John Deere 9660 STS Harvester: Technical properties

John Dir 9660 STS harvester: Technical characteristics

The John Deere 9660 STS is a highly productive and extremely reliable self-propelled grain and seed rounder. It is fail-safe and can be used successfully in all conditions and climates, with all moisture and straw content for grain crops. Equipped with the most powerful engine in the STS series, this harvester is designed for use on large farms with large areas.

Applications and equipment

Long-term high demand for the John Deere combine harvesters, despite the high cost of purchase of this agricultural equipment is determined by its high reliability and productivity, economical consumption of diesel fuel and lubricants, high quality of threshing and minimal grain loss during harvesting. The combine harvester equipment is regularly updated and expanded as proven models are upgraded and advanced design solutions are introduced.

The basic and main function of this combine harvester is grain harvesting with threshing and cleaning of grain. With the help of additional units it is possible to expand the scope of application of the model. Their connection allows you to harvest sunflowers, soybeans, corn and other crops.

Scope and capabilities of the device

The John Deere 9660 STS is of a universally recognized modern design with the cab in the middle and the hopper behind the cab. However, there are several important features in its design. In particular, the threshing scheme is successful in all respects, which does not contaminate the machine and the machinery. Among them is the inclined conveyor belt with high-capacity floating belt for efficient harvesting. The reinforced drive ensures a stable crop flow under heavy loads and difficult operating conditions.

A specially enlarged water catchment area improves the visibility of the cutterbar working area. Unlike other similar rotary agricultural machines, the 9660 STS has an additional device that controls the cutterbar lock. There is a powerful reversing mechanism. When operating in reverse mode, it turns the role in the opposite direction.

The high productivity of this model is also guaranteed by the high degree of automation and computerization of all systems, as well as the comfortable working conditions of the machine operator without fatigue. The fuel tank capacity, increased to 960 liters, positively affects the autonomy of the combine in remote fields, reducing downtime and costs. The performance of the high speed snail financier also reduces the downtime required to unload the finished grain product from the silage feeder tank.

The most important operating elements of a John Deere 9660 STS Grain Harvester


The John Deere 9660 STS combines a four-stroke liquid-cooled John Deere engine. This powerful and torquey six-cylinder engine features a turbocharger and a special POSI-TROK system designed to reduce power loss under various operating conditions; extending the life of the power source. Diesel displacement – 8.1 liters; Nominal power – 234 kW (320 hp); Nominal rpm – 2200 rpm.

Harvesting part

The combine is equipped with floating and rigid auger and line receivers, roller mats and corn adapters. As standard, the working width is 9.15 m. The feeder housing is equipped with a floating conveyor belt. The John Dir 9660 STS combine harvester is equipped with a reinforced drive system, which ensures a stable and smooth flow of cut crop regardless of the degree of loading.

The feeder housing has six transverse and longitudinal adjustments for excellent crop and terrain specificity. In addition, the John Deere 9660 STS will take care of the angle adjustment needed for sensitive and low-growing crops.

Garden tools to help keep the house tidy in winter

Harvesting part

The combine uses the Hedertrak relief system with automatic selection of operating parameters depending on the surface and soil properties. Information about system characteristics and current terrain is transmitted to the monitor in the cab of the combine. Electrical wires and hydraulic lines of the harvesting section are combined into a single collar. This greatly simplifies the process of assembling and disassembling the codpiece without the need for additional tools. There is a special device for controlling the locking lock.

Threshing and separation mechanism

The John Deere 9660 STS incorporates the proprietary STS Threshing System, which includes three locations. The first place distributes and transports the crop to the threshing system, and the second place, also the third, picks up the grain that is still in the straw. An asymmetrical three-speed rotor jacket was also used. Such a system ensures that the grain mass is released during the grinding process. This helps avoid excessive chopping of straw and reduces diesel consumption. The drum of this harvester has five blades.

Three types of tanks are provided for this harvester: bar (for corn, peas and soybeans), fine-tube (for threshed grain, sunflower, rapeseed, rye and rice) and coarse-tube (for soybeans and corn).

cleaning system

The cleaning mechanism includes fine and coarse cleaning, a pre-cleaner, a rotary blower and transport augers. The high cleaning quality is due in particular to the powerful rotor fan, which provides an even flow of air over the entire area. After pre-cleaning, no more than sixty percent of the chernomass remains, and this allocation acts on the main solution. Strong exhaust augers move the Zernomasse into a retreating camp. The John Deere 9660 STS Combine has a servo that allows the beams to be controlled from the machine operator’s cab.

cleaning system

Hoppers and straw walkers

Finished grain product is collected in a 8,800 liter hopper, from which it is cyclically removed by auger loader. The unloading speed is 77,5 liters per second. The unloading mechanism is available in several sizes. Grain is fed to a height of up to 4.4 meters.

The powerful grain hopper is equipped with a double-wing lid, which reliably protects the grain from moisture. The cover can be opened from the control panel in the operator’s cab. The hopper can be emptied regardless of the position of the discharge auger. If the diesel engine is very powerful, it is possible to combine the direct cleaning process with parallel discharge of grain products into the vehicle body.

The straw walker is used to stack straw on a bale or to spread it over the field. Thanks to several speed zones, the optimum working mode can be selected. The use of conventional or fixed knives ensures coarse chopping, while the use of gangmessers is arranged in such a way that they chop finely. For a thin layer of 10 meters or to form compact bales, it is possible to form 9660 STS.

Operating parameters

The cut crop is fed by a 1.397 m wide sponge with a speed of 520 rotations per minute. Hay is realized by means of a spherical rotor 750 mm in diameter and 3,13 m long, which operates in the speed range from 210 to 1000 revolutions per minute.

Separation of grain from straw is performed in a 1.5 m2 rotor separator. Cleaning from chaff and external impurities is performed by a dense stream of air, which is supplied by a fan with an operating speed of 500-1200 per second. Total cleaning area is 4,6 m2.

Combination cab

The cab on the John Dir 9660 STS combine has an automatic temperature-controlled cab. The large, panoramic windows (5.2 square meters) facilitate both machine visibility and driving. The operator’s seat has several adjustments, allowing you to choose the most optimal position. In the cab, four separate screens with control buttons are located on a vertical column to the right of the operator. In general, this harvester is extremely easy to operate and does not require any special training for operation.

combine cabin

Technical data in numbers

  • Overall dimensions harvester (without header) – length 8.98 m x width 3.77 m x height 3.94 m.
  • Weight – 13,523 tons (without attachments).
  • Harvest registration width is 4.3 m to 9.15 m.
  • Diameter of the rotor is 750 mm.
  • Rotor length – 3.13 m.
  • Low rotor speed – 210 rpm.
  • High rotor speed – 1000 rpm.
  • Area of concave area – 1.1 m2.
  • Total cleaning area is 4.6 m2.
  • Low cleaning fan speed is 500 rpm.
  • High cleaning fan speed is 1200 rpm.
  • Separation area is 1.5 m2.
  • Discharge grille area is 0.36 m2.
  • Width of the van – 1.397 m.
  • Conveyor length – 1,727 m.
  • Conveyor speed – 520 turns per minute.
  • Grain hopper capacity – 8800 liters.
  • Loading capacity – 77.5 liters per second.
  • Relief auger conveyor length – 6.5 meters.
  • Unloading/loading height – 4.4 meters.
  • Transport speed of the combine is up to 31 km/h, operating speed is 10 km/h.
  • Fuel tank capacity is 960 liters of diesel fuel.
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Evaluation reviews and service functions of the owner

Among the advantages of the John you 9660 st harvesters – the reliability and durability of all major components and assemblies; the association of many spare parts and components with other harvesters produced by the company – wherever possible; ease of operation and automation of most work processes by checking the most important parameters directly from the cab; without exception, high quality of the factory assembly; excellent fuel consumption.

The disadvantages of a combine harvester are few. Of course, the most important one is the high price or the cost of spare parts, consumables and service. The operator’s manual supplied with the machine is not very informative. There are no effective recommendations for self-service of the harvester, elimination of bugs and malfunctions. It is believed that the owner should not repair or operate anything at all, but should contact the service department of an authorized John Dir dealer for any reason.

Review ratings and service features of owners

Periodic maintenance intervals are displayed on the on-board computer monitor. When the next service interval is due, the corresponding information will appear on the display. The modular design of components such as the rotor liner, straw walker and fan gives you easy access to the parts you need. All harvester belts and chains are placed in convenient locations, and service lights highlight the required items and enable maintenance even in low-light conditions.

All of this lies in the reserve of working time savings – reduced volume, reduced complexity of service and reference work, and easy access to adjustment units, as well as increased interval of fifty hours between replacement maintenance.

With its serious own weight of nearly fourteen tons and compact dimensions, the John Deere 9660 STS does not alter the soil and preserves its natural characteristics. Such a grain picker fully meets the urgent needs of today’s large agro-fires. Progressive agricultural and agronomic technology.

John Dir 9660 STS harvester cost

All the owners without exception noted the excellent quality of the factory assembly of John Dir 9660 STs, interchangeability of expendable components, wide functionality, successful arrangement of all the working units and assemblies, low specific consumption of diesel engines, including when working under heavy loads. All this is easily confirmed by the nature of the combinations of this model, which remains in excellent technical condition after multistate operation.

According to the concrete experience of the owners, the John Deere 9660 STS combinations produced by more than six thousand mothers are not inferior to the new models in terms of performance and reliability. At the same time, the stability of the equipment on the road remains at the proper level under difficult micro-gap conditions, hence the satellite driving systems, etc. Computer assistants are not particularly necessary for this harvester. Even far from being a new machine on the move, it literally rearranges itself, with rather high speed it beats mopes and sunflowers of different sizes, almost without any losses.

Cost of John Dir 9660 STS harvester

Production of combines of this model has now been discontinued and replaced by even more modern and advanced John Dir machinery. There are relatively few used combines of this model on the market. The price for 2003-2004 models is around 4.500.000-5.300.000 rubles, and for 2006-2007 models it is around 7.000-7.800.000 rubles.

John Dir 9660 STS harvester cost

It is clear that the ubiquity of this harvester technology affects the high price range. It often happens that the John Deere 9660 STS for sale was originally purchased by B/W-Shim in Germany. These powerful and productive machines are aimed at large farms, involving the use of crops associated with large production, as well as their counterparts – rotary – harvesters European brand Case and New Holland.

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