John Deere S780 Combine Parts

S780 parts and accessories

The John Deere S780 combine, produced from 2018 onwards, is a high-capacity harvesting solution known for its efficiency and advanced technology. Boasting a powerful engine providing around 540 peak HP and accommodating headers up to 45 feet wide, the S780 features a rotary separator for high throughput and reduced grain loss. Its comfortable cab and automated features have made it a favorite among farmers seeking maximum productivity during harvest season.

The John Deere S780 combine was introduced in 2018 as part of the S700 series, representing a significant advancement in harvesting technology. Powered by a John Deere PowerTech 13.5L engine, the S780 delivers approximately 473 rated horsepower and peaks at 540 hp, with a displacement of 824 cubic inches. It employs a single rotor separator system designed for efficient threshing and separation of grain. The grain tank has a capacity of 400 bushels, and the unloading auger can discharge grain at a rate of up to 4.0 bushels per second (240 bu/min). Available header widths range from 30 to 45 feet, catering to various field sizes and crop types. Chopper and spreader options ensure proper residue management. The combine's cab is equipped with advanced technology, including a Generation 4 CommandCenter display for easy monitoring and control. The S780 excels at harvesting a variety of crops, including corn, soybeans, wheat, and other small grains, thanks to its adjustable settings and versatile header options.

Specifications

Engine	John Deere PowerTech 13.5L 473 HP Diesel (540 Peak HP)
Separator Type	Single Rotor - 31 inch diameter rotor
Grain Tank	400 bushels
Unloading Rate	240 bu/min
Header Widths	30-45 ft
Fuel Capacity	300 gallons
Weight	Approximately 40,000 lbs (depending on options)
Years Produced	2018-Present

Maintenance Tips

Concave Adjustment: Regularly inspect and adjust concave clearance based on crop type and condition to optimize threshing and minimize grain damage.
Belt and Chain Tension: Check belt and chain tension frequently, especially during the initial hours of operation. Proper tension ensures efficient power transmission and prevents premature wear.
Sieve and Chaffer Cleaning: Clean sieves and chaffers regularly to remove debris and ensure proper airflow for efficient grain separation. A clean cleaning system minimizes grain loss.
Bearing Greasing: Follow the manufacturer's recommended greasing schedule for all bearings to prevent premature failure and extend component life. Use high-quality grease designed for agricultural applications.

History & Background

The John Deere S780 was introduced in 2018 as part of the S700 series, replacing older models and incorporating advanced technology for improved harvesting performance. It represented a step forward in combine automation and data management capabilities. The S780 continues to be a relevant and powerful combine in modern farming operations, contributing to efficient and high-yield harvests.

Frequently Asked Questions

What engine is in the John Deere S780?

The John Deere S780 is powered by a John Deere PowerTech 13.5L diesel engine. It's rated at 473 horsepower and has a peak output of 540 horsepower.

What is the grain tank capacity on a S780?

The grain tank capacity on the John Deere S780 is 400 bushels, and it has an unloading rate of up to 240 bushels per minute.

What type of separator does the S780 have?

The John Deere S780 features a single rotor separator. The rotor is designed to efficiently thresh and separate grain from the crop material.

What are common parts needed for the S780?

Common wear parts for the John Deere S780 include concaves, rasp bars, belts (header, feederhouse, and drive belts), chains (feederhouse and elevator chains), bearings (rotor, auger, and header bearings), auger flighting, and sickle sections for the header.

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