1979 John Deere 4630 Tractor Specifications and Features Overview

1979 John Deere 4630 Tractor Specifications and Features Overview

The 1979 John Deere 4630 is a powerful and reliable tractor that continues to be a go-to choice for agricultural work. With a 6-cylinder engine delivering 125 horsepower, this model is built to handle a variety of tasks, from plowing fields to hauling heavy loads.

Equipped with a 8-speed synchro-range transmission, the 4630 allows for smooth shifts and versatile operation, ensuring the operator can easily adjust to different field conditions. Its hydraulic system offers a flow rate of up to 29 gallons per minute, providing ample power for demanding attachments and implements.

With a weight of 10,760 pounds, the 4630 offers a solid balance between stability and maneuverability, making it suitable for both large and small-scale operations. Its durable construction and robust design have made it a lasting favorite among farmers seeking a dependable machine for their day-to-day tasks.

For operators looking to upgrade their tractor, the 1979 John Deere 4630 stands out with its combination of horsepower, efficiency, and durability. Its specifications make it a strong contender for anyone needing a tractor that can handle heavy-duty work with ease.

1979 John Deere 4630 Specs

The 1979 John Deere 4630 is a reliable, high-performance tractor built to handle demanding farm work. It features a robust engine, solid hydraulic system, and versatile transmission options, making it a popular choice among farmers and contractors alike.

Engine:

  • Model: John Deere 404 cu in (6.6 L) six-cylinder diesel engine
  • Gross Power: 130 horsepower (97 kW)
  • Rated Power: 115 horsepower (86 kW) at 2,100 rpm
  • Torque: 375 lb-ft (508 Nm) at 1,400 rpm
  • Fuel Tank Capacity: 45 gallons (170 L)

Transmission and Drivetrain:

  • Transmission: 8 forward and 4 reverse speeds
  • Optional: PowerShift transmission for smoother operation
  • Rear Axle: 4WD and 2WD options available
  • Final Drive: Spur gear

Hydraulics and Lift:

  • Hydraulic System: Closed center with 21 gpm (79.5 L/min) flow rate
  • Lift Capacity: 6,000 lbs (2,722 kg) at the hitch
  • Hydraulic Remotes: 2 standard, with optional additional remotes

Dimensions and Weight:

  • Length: 146 inches (3.7 m)
  • Width: 96 inches (2.44 m)
  • Height: 116 inches (2.95 m)
  • Weight: 11,800 lbs (5,357 kg)

Comfort and Features:

  • Cab: Spacious, with optional air-conditioning and heating
  • Seating: High-back, adjustable seat with suspension
  • Visibility: Large windows for improved operator visibility

The 1979 John Deere 4630 stands out for its power and durability. With a solid engine, effective transmission, and capable hydraulic system, it excels at a variety of agricultural tasks. Whether used for plowing, hauling, or other farm duties, it offers solid performance year after year.

Engine Specifications and Power Output of the 1979 John Deere 4630

The 1979 John Deere 4630 features a robust 6-cylinder, 466 cubic inch (7.6 L) turbocharged engine. This engine produces a rated horsepower of 125 hp at 2,300 RPM. With its turbocharged design, it ensures improved performance and reliability under heavy-duty conditions, delivering consistent power for various agricultural tasks.

The engine is paired with a hydraulic system that provides 24 GPM of flow, optimizing productivity and efficiency in field operations. Fuel efficiency is further enhanced by the direct injection system, which ensures that each drop of fuel is utilized for maximum power output. The engine’s compression ratio stands at 16.5:1, ensuring a balance between fuel efficiency and power generation.

Designed for long-lasting performance, the 1979 4630 engine features an air-to-air intercooler, which helps maintain optimal engine temperatures under load. This system, combined with the heavy-duty filtration and cooling systems, extends the engine’s lifespan and ensures reliable operation through demanding conditions.

For operators requiring higher torque output, the John Deere 4630 delivers a maximum torque of 440 lb-ft at 1,400 RPM, ensuring that it can handle large, heavy implements without compromising performance.

Transmission and Hydraulic System Features in the 1979 John Deere 4630

The 1979 John Deere 4630 offers a reliable transmission system designed for heavy-duty farming tasks. It is equipped with a 16-speed power shift transmission, providing smooth gear transitions for a range of field conditions. This transmission allows for precise speed control, optimizing both fuel efficiency and performance during various operations.

The tractor also includes a hydraulic system with a closed-center, load-sensing design. This ensures that hydraulic pressure is only applied when needed, reducing power loss and enhancing operational efficiency. The 4630’s hydraulic system has a flow rate of up to 22.5 gallons per minute, capable of handling demanding attachments like plows and planters without compromising power delivery.

A key feature of the hydraulic system is the ability to adjust pressure settings to match different implements. This flexibility makes the tractor adaptable to a wide variety of tasks, from tilling to hauling heavy loads. The integrated power take-off (PTO) system, with a 540 RPM option, allows for smooth coupling with multiple implements, enhancing overall work efficiency.

With its 8.0 GPM steering pump, the 4630 provides quick and responsive steering, which is especially beneficial when working in tight spaces or when maneuvering large implements in the field. Combined with the robust transmission and hydraulic features, this tractor is engineered to meet the diverse needs of modern farming operations.

Common Maintenance Practices for the 1979 John Deere 4630 Tractor

Change the engine oil and filter every 150 hours of operation or annually, whichever comes first. Use high-quality diesel engine oil and ensure the oil level remains between the minimum and maximum marks.

Check and clean the air filter regularly, ideally every 50 hours. A clogged filter restricts airflow, reducing engine performance. If the filter appears damaged or overly dirty, replace it immediately.

Inspect the fuel system and fuel filters every 200 hours. Replace the fuel filters if you notice reduced engine power or fuel consumption. Clean any dirt or debris from the fuel lines during this check.

Examine the cooling system frequently. Ensure the radiator is clean, and there are no leaks in the hoses. Flush the cooling system and replace the coolant every 1,000 hours or once a year. Overheating can cause engine damage, so maintain proper coolant levels.

Check the hydraulic fluid levels and condition regularly. Low or contaminated hydraulic fluid can cause poor performance of the hydraulic system. Replace the hydraulic filter at least once a year to keep the system running smoothly.

Inspect the battery and electrical system. Clean the battery terminals and check for corrosion. Tighten the connections to prevent any electrical issues. If the battery is over three years old, consider replacing it to avoid unexpected failure.

Inspect the tires for wear and check air pressure frequently. Proper tire inflation ensures good traction and fuel efficiency. Rotate the tires periodically to ensure even wear and prolong their lifespan.

Grease the tractor at key lubrication points every 50 hours or weekly, depending on use. Pay special attention to the steering, axles, and PTO shaft to prevent premature wear and tear.

Check the tractor’s belts and pulleys for wear every 100 hours. A worn-out belt can cause system failures, so replace any that show signs of fraying or cracking.

Lastly, keep the tractor clean. Wash off mud, dirt, and debris to prevent corrosion and keep parts functioning as intended. Regular cleaning also helps with early detection of potential issues, such as leaks or cracks.