John Deere 8630 Tractor Parts

8630 parts and accessories

The John Deere 8630, manufactured from 1978 to 1981, was a powerful and innovative agricultural tractor. Featuring a robust 270 horsepower diesel engine, this tractor delivered significant PTO horsepower. Its articulated design and advanced features made it a popular choice for farmers tackling demanding tasks in large-scale operations.

The John Deere 8630 was introduced in 1978 as part of the company's line of high-horsepower, four-wheel drive articulated tractors. Production continued until 1981. This model was powered by a John Deere 466 cu in (7.6 L) 6-cylinder turbocharged diesel engine producing approximately 270 horsepower. It had a powershift transmission offering 8 forward and 4 reverse speeds. The PTO horsepower was rated at around 225 HP, and offered a 1000 RPM PTO speed. The hydraulic system had a capacity of around 30 GPM, supplying power for implement operation, typically with two to three remote valves. The 3-point hitch was a Category III, capable of lifting substantial implements. This tractor was commonly used for row crop farming, tillage operations, and large-scale hay production. It was distinguished by its articulated steering, which provided excellent maneuverability compared to traditional front-wheel assist tractors. The 8630 represented a significant advancement in tractor technology at the time, offering farmers increased power and efficiency.

Specifications

Engine	John Deere 466 cu in (7.6 L) 270 HP Diesel
PTO HP	225 HP @ 1000 RPM
Transmission	Powershift 8 forward/4 reverse
Hydraulics	30 GPM, 2-3 remotes
3-Point Hitch	Category III, 7,900 lbs lift capacity
Fuel Capacity	136 gallons
Weight	24,000 lbs
Years Produced	1978-1981

Maintenance Tips

Engine Oil & Filter: Change engine oil and filter every 250 hours of operation, using a high-quality oil that meets John Deere specifications.
Hydraulic System: Regularly inspect hydraulic fluid levels and filter condition. Change hydraulic fluid and filter every 500-1000 hours, depending on operating conditions, to prevent contamination and maintain performance.
Fuel System: Use clean, high-quality diesel fuel. Inspect and replace fuel filters regularly (every 250 hours) to prevent fuel system issues. Drain water from the fuel tank regularly to avoid corrosion and injector problems.
Seasonal Storage: Before storing the tractor for the off-season, drain and refill the fuel tank with fresh fuel and add a fuel stabilizer. Change engine oil and filter, and grease all lubrication points. Disconnect the battery and store it in a cool, dry place.

History & Background

The John Deere 8630 was introduced in 1978 as a high-horsepower articulated 4WD tractor. It represented a step forward in tractor design, offering farmers enhanced power and maneuverability. Its success helped establish John Deere as a leader in the large agricultural tractor market.

Frequently Asked Questions

What engine is in the John Deere 8630?

The John Deere 8630 is powered by a John Deere 466 cubic inch (7.6L) 6-cylinder turbocharged diesel engine producing approximately 270 horsepower.

What is the PTO horsepower on a 8630?

The John Deere 8630 has a PTO horsepower rating of approximately 225 HP at 1000 RPM.

What oil filter fits the 8630?

The John Deere 8630 typically uses a John Deere oil filter part number AR51715. Common cross-references include Wix 51794, Fram PH3756, and Baldwin B233.

What are common parts needed for the 8630?

Common wear parts for the John Deere 8630 include engine oil filters, fuel filters, hydraulic filters, fan belts, hydraulic seals, steering components (tie rod ends, ball joints), clutch discs and plates, and PTO shaft seals.

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