John Deere S440 Combine Parts

S440 parts and accessories

The John Deere S440 combine, produced from 2012-2017, offered farmers a reliable and efficient harvesting solution. With a 240 HP engine and header widths ranging from 20 to 30 feet, the S440 provided a versatile option for various field sizes. Its conventional separator system, with rotary separation enhancement, was well-regarded for its gentle grain handling and overall performance, making it a popular choice for smaller to mid-sized operations.

The John Deere S440 was introduced as part of John Deere's S-Series combine lineup, serving as a compact model optimized for smaller acreages and diverse crop types. Production spanned from 2012 to 2017. The S440 is powered by a John Deere PowerTech 6.8L 6-cylinder diesel engine, producing 240 horsepower. This engine provides ample power for threshing, separating, and cleaning grain efficiently. The separator system features a conventional 1670mm cylinder width, with enhanced rotary separation. The grain tank holds approximately 220 bushels, allowing for extended harvesting intervals. The unloading auger boasts an unloading rate of approximately 2.4 bushels per second (145 bu/min). Operators could choose from a range of header widths, typically ranging from 20 to 30 feet, providing flexibility for different row spacings and field conditions. While not always standard, chopper/spreader options were available to manage residue distribution effectively. The S440 featured a comfortable and functional cab with intuitive controls. It proved particularly effective in harvesting wheat, soybeans, and corn where gentle grain handling and minimal grain loss were paramount.

Specifications

Engine	John Deere PowerTech 240 HP 6.8L Diesel
Separator Type	Conventional - 1670mm cylinder width with rotary separation enhancement
Grain Tank	220 bushels
Unloading Rate	145 bu/min
Header Widths	20-30 ft
Fuel Capacity	150 gallons
Weight	26,500 lbs
Years Produced	2012-2017

Maintenance Tips

Concave Adjustment: Regularly check and adjust concave clearance according to the crop being harvested to ensure optimal threshing and minimize grain damage.
Belt and Chain Tension: Inspect and maintain proper tension on all belts and chains, especially those driving the feeder house, separator, and cleaning systems, to prevent slippage and premature wear.
Sieve and Chaffer Cleaning: Regularly clean the sieves and chaffer to remove debris and ensure efficient grain separation. Adjust sieve settings as needed based on grain size and field conditions.
Bearing Greasing: Follow the recommended greasing schedule for all bearings throughout the combine, paying close attention to high-wear areas like the header, feeder house, and separator.

History & Background

The John Deere S440 was released as a part of John Deere's strategy to offer a wider range of combine sizes. There were no major design changes during its production run from 2012-2017. It filled a niche between larger models, providing an economical option for smaller farms and custom harvesters.

Frequently Asked Questions

What engine is in the John Deere S440?

The John Deere S440 is equipped with a John Deere PowerTech 6.8L 6-cylinder diesel engine producing 240 horsepower.

What is the grain tank capacity on a S440?

The grain tank capacity of the John Deere S440 is approximately 220 bushels, with an unloading rate of 145 bushels per minute.

What type of separator does the S440 have?

The John Deere S440 utilizes a conventional separator with a 1670mm cylinder width. It also features rotary separation enhancement for improved grain separation efficiency.