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Purchasing a used piece of construction equipment is a significant investment, and with older machines, like the 1986 John Deere 490E Excavator, buyers need to consider various factors before making a decision. While this excavator model offers reliability, strength, and a proven track record, potential buyers should evaluate its condition, operational needs, and repair history to determine if it will meet their requirements for the long term.
This article provides an in-depth overview of the 1986 John Deere 490E Excavator, covering its features, common issues, maintenance requirements, and things to look for when considering purchasing such a machine.
Overview of the 1986 John Deere 490E Excavator
The John Deere 490E is a popular model from the late 1980s, known for its durability and performance in various construction, mining, and earth-moving applications. Despite being over 30 years old, many operators and contractors still seek out this model due to its solid design and robust construction. Below are key details about the 490E:
While the 490E is a reliable machine, like any older equipment, it’s important to be aware of common issues that may arise as the machine ages. Being informed will help you identify potential problems during your inspection or purchase.
Before purchasing a 1986 John Deere 490E Excavator, there are several key factors to evaluate to ensure that the machine will meet your needs and provide a good return on investment.
1. Inspection and Maintenance History
Before making any purchasing decision, always ask for the machine’s maintenance records. A well-maintained machine will provide much better value than one that has been neglected. Key things to look for:
Consider whether the 490E fits your specific needs. With a digging depth of about 19 feet, the machine is suitable for medium to large excavation jobs, but it might not be ideal for deep trenching or highly specialized tasks. The lifting capacity and reach of the arm are also crucial factors to consider based on the type of projects you plan to undertake.
3. Age of the Machine
As the 490E is more than 30 years old, keep in mind that while it may still have plenty of life left with proper maintenance, it is approaching the end of its typical service life. Older machines often require more frequent repairs and can have parts that are harder to find or more expensive.
4. Availability of Spare Parts
Since the 490E was built several decades ago, sourcing replacement parts might be a challenge. John Deere machines are known for their availability of parts, but some specific components for older models might require aftermarket solutions. Always check whether the necessary parts are easily accessible.
5. Price Comparisons
Finally, it’s important to compare the asking price of the John Deere 490E with similar machines. While this model is often more affordable than newer machines, its age may affect its resale value. Ensure that the price aligns with the condition of the machine and the work it will need.
Pros and Cons of the 1986 John Deere 490E Excavator
To summarize, here’s a breakdown of the benefits and drawbacks of purchasing a 1986 John Deere 490E Excavator:
Pros:
The 1986 John Deere 490E Excavator can still be a valuable piece of equipment for certain tasks if purchased with caution. It offers durability and strength at a reasonable price point, but buyers should carefully inspect the machine for common issues like hydraulic leaks, engine wear, and undercarriage damage. Additionally, ensure that maintenance records are available and that parts are easily sourced for future repairs.
If you’re in the market for a used excavator and the 490E fits your needs, it can be a solid investment with proper maintenance. However, if you require modern features or are looking for a machine with minimal repair needs, you might want to consider newer options.
This article provides an in-depth overview of the 1986 John Deere 490E Excavator, covering its features, common issues, maintenance requirements, and things to look for when considering purchasing such a machine.
Overview of the 1986 John Deere 490E Excavator
The John Deere 490E is a popular model from the late 1980s, known for its durability and performance in various construction, mining, and earth-moving applications. Despite being over 30 years old, many operators and contractors still seek out this model due to its solid design and robust construction. Below are key details about the 490E:
- Engine and Power: The 490E is equipped with a 4.5-liter John Deere diesel engine, typically producing around 95 horsepower. This is adequate for a machine of its size, ensuring strong digging performance for a wide range of projects.
- Hydraulic System: The machine uses a hydraulic system designed for smooth and efficient operation of the boom, arm, and bucket. The 490E uses a load-sensing system that adjusts hydraulic pressure based on the machine’s workload, ensuring maximum efficiency.
- Weight and Reach: With an operating weight of approximately 17,000 pounds, the 490E offers a good balance of stability and lifting power. It has a digging depth of around 19 feet, making it capable of handling medium-sized excavation tasks.
- Cab and Controls: The 490E features a spacious cab with straightforward mechanical controls. The layout and visibility are adequate for most operators, although modern excavators may offer more ergonomic options.
While the 490E is a reliable machine, like any older equipment, it’s important to be aware of common issues that may arise as the machine ages. Being informed will help you identify potential problems during your inspection or purchase.
- Hydraulic Leaks: One of the most common problems in older excavators is hydraulic leaks. These can occur in the hydraulic hoses, fittings, or cylinders, and they can result in a loss of performance. It’s crucial to inspect the hydraulic system for any signs of leaks or damage.
- Engine Wear: With the John Deere 490E being over 30 years old, engine wear is a concern. Common issues may include reduced compression, oil leaks, or decreased fuel efficiency. Make sure the engine has been properly maintained, and check for any signs of blow-by or excessive smoke.
- Undercarriage Wear: The undercarriage, including the tracks, rollers, and sprockets, often experiences significant wear due to constant use. Replacing the undercarriage can be costly, so it’s essential to inspect these components for wear or damage. Look for uneven track wear, missing links, or signs of rust or corrosion.
- Electrical Problems: Older machines often suffer from electrical issues, including problems with wiring, alternators, and starter motors. Inspect the electrical system thoroughly to ensure that all lights, switches, and controls are functioning properly.
- Hydraulic Pump and Valve Issues: The hydraulic pump and valves are central to the excavator’s operation. Problems with these components can lead to sluggish movements or complete failure of the hydraulic system. Ensure the hydraulic pump is functioning correctly and that there is no sign of wear or failure.
Before purchasing a 1986 John Deere 490E Excavator, there are several key factors to evaluate to ensure that the machine will meet your needs and provide a good return on investment.
1. Inspection and Maintenance History
Before making any purchasing decision, always ask for the machine’s maintenance records. A well-maintained machine will provide much better value than one that has been neglected. Key things to look for:
- Routine Maintenance: Verify if oil changes, hydraulic fluid replacements, and other routine services have been performed regularly.
- Previous Repairs: Check for any major repairs, such as engine overhauls or transmission work. Significant repairs could be a red flag, or they could show that the owner took care of the machine.
- Signs of Abuse: Ask about how the machine was used. Excessive overloading or improper use can accelerate wear and lead to costly repairs.
Consider whether the 490E fits your specific needs. With a digging depth of about 19 feet, the machine is suitable for medium to large excavation jobs, but it might not be ideal for deep trenching or highly specialized tasks. The lifting capacity and reach of the arm are also crucial factors to consider based on the type of projects you plan to undertake.
3. Age of the Machine
As the 490E is more than 30 years old, keep in mind that while it may still have plenty of life left with proper maintenance, it is approaching the end of its typical service life. Older machines often require more frequent repairs and can have parts that are harder to find or more expensive.
4. Availability of Spare Parts
Since the 490E was built several decades ago, sourcing replacement parts might be a challenge. John Deere machines are known for their availability of parts, but some specific components for older models might require aftermarket solutions. Always check whether the necessary parts are easily accessible.
5. Price Comparisons
Finally, it’s important to compare the asking price of the John Deere 490E with similar machines. While this model is often more affordable than newer machines, its age may affect its resale value. Ensure that the price aligns with the condition of the machine and the work it will need.
Pros and Cons of the 1986 John Deere 490E Excavator
To summarize, here’s a breakdown of the benefits and drawbacks of purchasing a 1986 John Deere 490E Excavator:
Pros:
- Solid Performance: Despite being old, the 490E still delivers reliable performance for general excavation work.
- Durability: John Deere machines are known for their robustness and can often last longer with proper care.
- Affordable: Used models like the 490E are often more affordable compared to newer, high-tech excavators.
- Ease of Repair: Being an older mechanical machine, it is easier and cheaper to repair than newer, electronically controlled models.
- Aging Technology: The 490E lacks the modern features found in newer machines, such as advanced electronic controls, fuel efficiency technologies, and enhanced comfort features.
- Potential High Maintenance Costs: As the machine ages, the risk of expensive repairs increases, especially if it hasn’t been maintained properly.
- Parts Availability: While parts for older John Deere machines are generally available, some components for the 490E may be harder to find.
The 1986 John Deere 490E Excavator can still be a valuable piece of equipment for certain tasks if purchased with caution. It offers durability and strength at a reasonable price point, but buyers should carefully inspect the machine for common issues like hydraulic leaks, engine wear, and undercarriage damage. Additionally, ensure that maintenance records are available and that parts are easily sourced for future repairs.
If you’re in the market for a used excavator and the 490E fits your needs, it can be a solid investment with proper maintenance. However, if you require modern features or are looking for a machine with minimal repair needs, you might want to consider newer options.
