John Deere 6602 Combine Parts

6602 parts and accessories

The John Deere 6602 combine harvester, manufactured from 1971 to 1982, was a popular choice for farmers seeking a reliable and versatile machine. Powered by a robust John Deere diesel engine producing around 105 horsepower, the 6602 offered header widths up to 18 feet. Its conventional threshing system and efficient grain handling made it a workhorse for harvesting various grains.

The John Deere 6602 was introduced in 1971 as a mid-sized combine offering solid performance for smaller to medium-sized farms. Production continued until 1982. The engine was a John Deere 404 cubic inch (6.6L) diesel, rated at approximately 105 horsepower. This engine provided ample power for the combine's threshing and separation functions. The 6602 utilized a conventional cylinder and concave system for threshing, delivering good grain quality. The grain tank capacity was about 75 bushels, and the unloading auger provided a reasonable unloading rate. Available header widths ranged from 13 to 18 feet, allowing for flexible harvesting based on field conditions. While it didn't have advanced features like a chopper or spreader as standard, these could be added as aftermarket options. The cab offered basic operator comfort, but prioritized functionality and visibility. The 6602 excelled at harvesting wheat, soybeans, oats, and other small grains, making it a versatile and dependable combine for many farmers.

Specifications

Engine	John Deere 404 Diesel
Separator Type	Conventional - Cylinder width ~40 inches
Grain Tank	75 bushels
Unloading Rate	~30 bu/min
Header Widths	13-18 ft
Fuel Capacity	47 gallons
Weight	Approximately 10,000 lbs
Years Produced	1971-1982

Maintenance Tips

Concave Adjustment: Regularly inspect and adjust the concave clearance to ensure proper threshing and minimize grain damage. Refer to the operator's manual for specific settings based on the crop being harvested.
Belt and Chain Tension: Check belt and chain tension frequently. Loose belts or chains can cause slippage, reduced performance, and premature wear. Adjust tensioners as needed and replace worn components promptly.
Sieve and Chaffer Cleaning: Clean the sieves and chaffers regularly to remove debris and ensure proper grain separation. Blocked screens can lead to grain loss and reduced harvesting efficiency.
Bearing Greasing: Follow the recommended greasing schedule for all bearings to prevent premature wear and failure. Use high-quality grease and ensure proper lubrication of all grease fittings.

History & Background

The John Deere 6602 was introduced in the early 1970s as an upgrade over previous models, offering improved capacity and efficiency for its time. It represented a shift towards more powerful and productive combines suitable for a wider range of farming operations. While not revolutionary in design, its reliability and performance helped solidify John Deere's reputation in the agricultural equipment market.

Frequently Asked Questions

What engine is in the John Deere 6602?

The John Deere 6602 is powered by a John Deere 404 cubic inch (6.6L) diesel engine producing around 105 horsepower.

What is the grain tank capacity on a 6602?

The grain tank capacity on a John Deere 6602 is approximately 75 bushels, with an unloading rate of around 30 bushels per minute.

What type of separator does the 6602 have?

The John Deere 6602 utilizes a conventional threshing system with a cylinder and concave. The cylinder is around 40 inches wide.

What are common parts needed for the 6602?

Common wear parts for the John Deere 6602 include concaves, rasp bars, belts, chains, bearings, auger fingers, and sickle sections for the header. Regular maintenance and timely replacement of these parts are essential for optimal performance.

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