Caterpillar 955L: A Classic Track Loader and Its Key Features

[MikePhua]

The Caterpillar 955L is a well-regarded track loader, commonly used in construction, forestry, and mining operations. Known for its rugged design and versatility, the 955L has been a dependable piece of machinery in the heavy equipment world for decades. As the proud new owner of a 955L, understanding its capabilities and maintenance needs is crucial to maximizing its performance and lifespan.
Introduction to the Caterpillar 955L
The 955L was part of Caterpillar's series of track loaders, designed to combine the power of a bulldozer with the mobility and flexibility of a loader. This model, introduced in the late 1970s, was a significant upgrade over its predecessors, offering improved lifting capacity, faster cycle times, and enhanced fuel efficiency.
Built for tough environments, the 955L features a robust undercarriage, making it suitable for operating on soft or uneven terrain where wheeled loaders might struggle. It’s equipped with a powerful engine and offers good lift height and breakout force, making it ideal for a variety of tasks, from grading and digging to heavy lifting.
Key Specifications and Features
When discussing the 955L, it's important to highlight the key specifications and features that made it a standout in the track loader category.
Engine Power:

• The 955L is powered by a 4-cylinder diesel engine, typically producing around 100 horsepower. This engine offers a good balance between power and fuel efficiency, making the 955L capable of tackling a wide range of tasks.
  

Hydraulics and Lift Capacity:

• The hydraulic system on the 955L was designed to be both powerful and responsive. Its lifting capacity is impressive for a machine of its size, with an operating weight of around 16,000 to 18,000 pounds depending on configuration.
  
• The hydraulic system allows for smooth lifting and lowering of the bucket, and it also supports auxiliary hydraulic tools like augers and grapple buckets.
  

Undercarriage and Mobility:

• As a tracked loader, the 955L’s undercarriage is designed for durability and stability. The tracks allow it to move across soft, muddy, or rocky terrain with ease. The wide stance of the undercarriage provides stability, which is critical when operating on uneven ground.
  
• The track loader's oscillating axle improves the stability and maneuverability of the machine, allowing it to maintain traction in various conditions.
  

Bucket and Attachments:

• The 955L typically comes with a general-purpose bucket, though it can be equipped with a variety of attachments depending on the application. These include forks, winches, and rippers, which enhance the loader's versatility on the job site.
  
• One of the advantages of the 955L is its adaptability with attachments that make it suitable for a wide range of tasks, from land clearing to material handling and even digging.
  

Common Maintenance Issues with the 955L
Like all heavy machinery, the 955L requires regular maintenance to ensure it operates at peak performance. New owners may encounter several common issues that require attention.
Hydraulic System Issues:

• The hydraulic system in older 955L models can develop leaks or experience a drop in efficiency over time. Regular inspection of hoses, seals, and hydraulic cylinders is essential to prevent major failures. Low hydraulic fluid levels can cause slower cycle times, which can impact productivity.
  
• It’s important to check for any signs of wear or leaks in the hydraulic hoses, especially around the control valves and cylinders.
  

Engine Performance:

• The engine is one of the most critical components of the 955L. Over time, older models may have issues with fuel injectors or the fuel system. Maintaining clean fuel and regularly replacing the fuel filter is essential.
  
• A well-maintained engine ensures better starting performance and reduced exhaust emissions. It’s advisable to monitor coolant levels and check the engine oil regularly to avoid overheating and wear.
  

Track Wear:

• Given that the 955L uses a tracked system, track wear is inevitable, especially in rough operating conditions. Regular track tensioning is crucial to prevent unnecessary wear and to keep the loader in optimal working condition.
  
• Check for any signs of broken track links, or worn sprockets, and maintain proper tension on the tracks to ensure smooth operation.
  

Electrical and Wiring Issues:

• Older equipment, such as the 955L, can suffer from wiring issues, including corroded connectors or faulty wiring that leads to electrical failures. A thorough inspection of the electrical system can help identify any potential problems early.
  

Transmission and Drive System:

• The 955L’s transmission and drive system are another key area of maintenance. Low or contaminated transmission fluid can lead to slipping or jerking during operation. It's important to monitor fluid levels and quality, and to change the fluid according to the manufacturer's recommended intervals.
  

Upgrades and Modifications
As a new owner, you may consider upgrading certain features or making modifications to improve performance or comfort. Some popular upgrades for the 955L include:
Cab and Comfort Enhancements:

• Modernizing the cab with better seating, climate control, and improved visibility can enhance comfort and productivity, especially for operators working long shifts.
  

Upgraded Hydraulics:

• Some owners opt to upgrade the hydraulic system to handle heavier loads or improve lifting capabilities. Installing a high-flow hydraulic system can provide the power needed for demanding attachments.
  

Transmission Upgrades:

• If you frequently use the 955L for heavy lifting, an upgraded transmission or a transmission cooler can help extend the lifespan of the drive system and improve overall performance.
  

Conclusion: The Value of the Caterpillar 955L
The Caterpillar 955L is a reliable and versatile track loader that has stood the test of time. With the right care and maintenance, it remains a valuable asset for construction, landscaping, and other heavy-duty tasks. As a new owner, understanding its strengths and potential issues is essential for maximizing its productivity and ensuring that it continues to perform well on the job site.
Investing in regular maintenance and keeping an eye on common wear points can help you extend the life of your 955L. Furthermore, considering appropriate upgrades and modifications can help tailor the machine to your specific needs, increasing its efficiency and versatility. Ultimately, the Caterpillar 955L remains a workhorse in the heavy equipment industry, capable of taking on challenging tasks for years to come.