Demolition with the CAT 955 Traxcavator

[MikePhua]

The CAT 955 Traxcavator, a powerful and versatile piece of equipment, has been a reliable tool in the construction and demolition industries for decades. Originally designed by Caterpillar to handle a variety of excavation tasks, the 955 Traxcavator combines the functionality of a crawler tractor and an excavator into a single machine, providing exceptional mobility and power on job sites. This article will delve into its capabilities, particularly in demolition work, and highlight key features, challenges, and practical considerations when using the 955 Traxcavator for such tasks.
Introduction to the CAT 955 Traxcavator
The CAT 955 Traxcavator was introduced in the 1950s as a more versatile alternative to the traditional bulldozer, capable of both digging and lifting operations. It uses a track-based system (hence the "Traxcavator" name) that gives it stability and power on rough terrain. Over the years, it has become a popular choice for construction, demolition, and material handling jobs, particularly where space is limited and maneuverability is key.
The 955 Traxcavator typically features a crawler tractor chassis combined with a hydraulic lifting arm and bucket, making it capable of excavating, grading, and even performing lifting operations. It’s equipped with either a diesel or gasoline engine, depending on the model, offering anywhere from 75 to 120 horsepower, giving it sufficient power to handle tough tasks.
Using the CAT 955 Traxcavator in Demolition Work
In demolition work, the CAT 955 Traxcavator proves itself to be an invaluable asset. Its combination of digging ability and the power of its hydraulic system makes it suitable for breaking down structures, removing debris, and clearing sites. The ability to maneuver effectively in confined spaces is one of its most important advantages in urban demolition or smaller site clearances.

1. Demolition and Site Clearance
   The 955 Traxcavator is equipped with a heavy-duty bucket, which makes it effective for removing rubble and debris. In demolition work, the excavator's hydraulic system can also be used to power various attachments, such as hydraulic hammers, grapples, or shears, to break down structures more efficiently. It can also be fitted with a ripper attachment to break through hard surfaces, such as concrete or rock.
   
2. Precision and Control
   With its powerful hydraulics and tracked undercarriage, the 955 provides excellent control over excavation and demolition activities. The machine’s hydraulic controls offer operators the precision needed to carefully dismantle structures, ensuring that only the targeted materials are affected while preserving the surrounding areas.
   
3. Material Handling and Transport
   During demolition, debris often needs to be moved away from the site for proper disposal or recycling. The CAT 955 Traxcavator’s ability to carry heavy loads, coupled with its efficient bucket and lifting capabilities, makes it ideal for transporting rubble to trucks or other processing equipment.
   
4. Clearing and Grading the Site
   After a building is demolished, the site usually requires clearing and leveling to make it suitable for new construction. The 955’s bulldozer-like functionality allows it to perform grading and site preparation tasks, ensuring the area is cleared efficiently.
   

Challenges in Using the CAT 955 Traxcavator for Demolition
While the CAT 955 Traxcavator is an excellent machine for demolition, it’s not without its challenges. Some of the common hurdles operators may face when using this machine in demolition settings include:

1. Age and Wear on Older Models
   The 955 Traxcavator, having been around for several decades, may show signs of wear, particularly in older models. Components like the hydraulic pumps, engine, and tracks are prone to fatigue over time. Regular maintenance is crucial to keeping the machine in optimal condition. Parts for older models can be hard to find, which may require operators to source used parts or retrofit newer components.
   
2. Lack of Advanced Safety Features
   Unlike modern excavators and demolition machines, the CAT 955 does not come equipped with advanced safety features, such as cameras or proximity sensors, which help operators navigate tighter spaces. This makes the machine more reliant on the operator's experience and skill to avoid accidents.
   
3. Limited Mobility in Tight Spaces
   While the 955’s tracked system provides stability and traction, it also limits its ability to navigate tight, confined spaces, especially in heavily congested urban environments. This can be mitigated by using smaller attachments and being mindful of machine placement, but it remains a challenge when compared to newer machines with more compact designs.
   
4. Fuel Efficiency
   Given its size and power, the CAT 955 is not known for its fuel efficiency. In large-scale demolition projects, the cost of fuel can add up quickly, making it more expensive to operate than newer, more fuel-efficient models. However, for small- to medium-scale demolition tasks, the 955 remains a viable option due to its reliability and power.
   

Maintenance and Care for the CAT 955 Traxcavator
To ensure the longevity and optimal performance of the CAT 955 Traxcavator, regular maintenance is essential. Some key maintenance practices include:

1. Routine Engine and Hydraulic System Checks
   The engine and hydraulic system are at the heart of the 955 Traxcavator's performance. Regular oil changes, filter replacements, and hydraulic fluid checks are necessary to prevent breakdowns. It’s also important to check for any leaks or signs of wear, particularly in the hydraulic hoses, seals, and pumps.
   
2. Track and Underbody Maintenance
   The tracks on the CAT 955 are designed for tough terrain, but they are also subject to wear and tear. Periodic inspection of the tracks for damage, cracks, or excessive wear will help ensure the machine maintains its stability. Regular cleaning and maintenance of the undercarriage are also important to prevent debris from accumulating and affecting performance.
   
3. Bucket and Attachment Care
   The buckets and attachments used in demolition should be inspected regularly for wear, cracks, and damage. Replacement teeth, wear plates, and hydraulic components should be replaced as needed to maintain the effectiveness of the attachments.
   
4. Hydraulic System Maintenance
   The hydraulic system on the 955 is integral to the machine's performance, especially when used for tasks like demolition. Keeping the hydraulic components clean, changing filters, and ensuring fluid levels are correct are all key to maintaining the system's power and efficiency.
   

Conclusion: The Legacy of the CAT 955 Traxcavator in Demolition
The CAT 955 Traxcavator, despite being a product of its time, has proven itself to be a reliable and versatile machine for demolition work. Its ability to perform a variety of tasks, from material handling to site preparation, has made it a mainstay in many demolition projects. While it faces challenges due to its age and lack of modern features, its robust design, powerful hydraulics, and operational flexibility continue to make it an asset on demolition sites.
For those working with older models, investing in regular maintenance and upgrading certain components is key to extending the life of the machine. In conclusion, the CAT 955 Traxcavator’s legacy in the demolition industry is secure, and for many, it remains a trusted tool that delivers on performance and reliability.