John Deere 9650STS Combine Parts
9650STS parts and accessories
The John Deere 9650STS combine, manufactured from 1999 to 2002, offered farmers a powerful and efficient harvesting solution. Boasting around 300 engine horsepower and compatibility with a range of header widths, this rotary combine became popular due to its ability to handle high volumes of grain and improve harvesting efficiency.
The John Deere 9650STS was introduced in 1999 as part of the STS (Single Tine Separator) series, marking a significant advancement in rotary combine technology. Its engine, a John Deere 8.1L 6-cylinder diesel, delivered approximately 300 horsepower, providing ample power for demanding harvesting conditions. The heart of the 9650STS was its rotary separator, featuring a single tine rotor design known for its improved grain quality and reduced grain loss compared to conventional cylinder combines. The grain tank held around 225 bushels, and the unloading auger could discharge grain at a rate of approximately 2.5 bushels per second (150 bu/min). Available header widths varied depending on the crop and terrain, ranging from 20 to 30 feet for grain platforms and 6-8 row corn heads. Chopper and spreader options were available to manage crop residue effectively. The cab provided operators with a comfortable and ergonomic workspace. The 9650STS proved to be particularly adept at harvesting crops like corn, soybeans, and wheat, where its rotary system minimized grain damage and maximized throughput.
Specifications
| Engine | John Deere 8.1L 300 HP Diesel |
|---|---|
| Separator Type | Rotary - Single Tine Separator Rotor |
| Grain Tank | 225 bushels |
| Unloading Rate | 150 bu/min |
| Header Widths | 20-30 ft |
| Fuel Capacity | 150 gallons |
| Weight | 27,000 lbs |
| Years Produced | 1999-2002 |
Maintenance Tips
- Concave Adjustment: Regularly inspect and adjust concave clearance to ensure optimal threshing and minimize grain damage. Refer to the operator's manual for recommended settings based on crop type.
- Belt and Chain Tension: Check and maintain proper tension on all belts and chains. Loose belts and chains can lead to slippage, reduced performance, and premature wear.
- Sieve and Chaffer Cleaning: Regularly clean the sieves and chaffer to remove debris and ensure proper airflow for efficient grain separation. Clogged sieves can result in grain loss.
- Bearing Greasing: Grease all bearings according to the manufacturer's recommended schedule. Proper lubrication is crucial for preventing bearing failure and extending the lifespan of your combine.
History & Background
The John Deere 9650STS was released in 1999 as part of the initial wave of STS combines. It was a significant shift for John Deere from conventional cylinder combines to a more efficient rotary threshing system, greatly reducing grain loss. This model set the stage for future STS models and established the popularity of rotary combines for larger-scale farming operations.
Frequently Asked Questions
What engine is in the John Deere 9650STS?
The John Deere 9650STS is equipped with a John Deere 8.1L 6-cylinder diesel engine producing approximately 300 horsepower.
What is the grain tank capacity on a 9650STS?
The grain tank on the John Deere 9650STS has a capacity of 225 bushels with an unloading rate of 150 bushels per minute.
What type of separator does the 9650STS have?
The John Deere 9650STS utilizes a rotary separator, featuring a Single Tine Separator (STS) rotor design. This design helps improve grain quality and reduce grain loss.
What are common parts needed for the 9650STS?
Common wear parts for the John Deere 9650STS include concaves, rasp bars, belts, chains, bearings, auger fingers, and sickle sections. Regularly inspecting and replacing these parts ensures optimal combine performance.

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