Upgrading a CAT Crawler Loader 953: Enclosing the Cab and Adding Heat for Increased Comfort

[MikePhua]

Operating heavy machinery in challenging environments can be tough on both the operator and the machine itself. One common modification made by equipment owners is upgrading the cab of their crawler loaders to provide additional comfort and protection from the elements. The CAT Crawler Loader 953 is a popular choice for such modifications, especially when users want to enclose the cab and add heating systems. By adding these features, operators can significantly improve their working conditions, increase productivity, and extend the machine's usability during colder months.
Why Enclose the Cab and Add Heat?
Operators of heavy equipment like the CAT 953 often work in harsh environments, exposed to extreme weather conditions. Whether it's snow, rain, or freezing temperatures, the discomfort can impact performance and even safety. Adding an enclosed cab and heating system provides several benefits:

• Improved Operator Comfort: With an enclosed cab, operators are shielded from harsh weather conditions, reducing fatigue and improving overall comfort during long hours of operation.
  
• Enhanced Safety: Enclosing the cab helps to protect the operator from flying debris, dust, and other hazards, which is especially crucial in construction or demolition settings.
  
• Increased Productivity: A comfortable operator is a more focused and efficient one. By adding heat, operators can work longer hours without being distracted by the cold, thus maintaining high productivity levels.
  
• Protection for Electronics: An enclosed cab helps protect the machine’s electronics and control systems from exposure to moisture and extreme temperatures.
  

Choosing the Right Cab Enclosure
When planning to enclose the cab of a CAT 953 crawler loader, there are a few options to consider:

• Factory-Enclosed Cab Kits: The most straightforward option is to purchase a factory-designed cab enclosure kit. These kits are specifically designed for the CAT 953 and are made to fit perfectly, ensuring structural integrity and ease of installation.
  
• Aftermarket Enclosures: Another option is to look into aftermarket cab enclosures. These are often less expensive than factory kits but may require some customization. It's essential to ensure that the aftermarket enclosure is compatible with your machine model.
  
• Custom Fabrication: For those who want a fully tailored solution, custom fabricating a cab enclosure is an option. This approach allows for a fully personalized design that meets specific needs, but it can be more costly and time-consuming.
  

Adding a Heating System
Once the cab is enclosed, adding a heating system ensures that operators remain warm in cold weather. There are different types of heating systems available, depending on budget, preference, and machine specifications:

1. Hydronic Heater:
   • A hydronic heating system uses hot coolant from the engine to circulate through pipes that are installed in the cab. This system provides a consistent heat source, drawing energy from the machine’s engine. It's an efficient system that doesn't require additional fuel.
     
   • Advantages: Low operational cost, minimal maintenance, and it integrates well with the existing engine cooling system.
     
   • Considerations: Installation can be more complex, as it requires integrating into the machine’s coolant system.
     
2. Diesel Heaters:
   • Diesel-powered heaters are a popular choice for machinery in cold climates. These heaters run independently of the machine’s engine and provide rapid, efficient heating.
     
   • Advantages: They are independent of the engine, which means they can be used even when the engine is off, and they provide quick heat.
     
   • Considerations: Diesel heaters require additional fuel, and the installation must be done carefully to prevent fuel system issues.
     
3. Electric Heaters:
   • Electric heaters are simple to install and use electricity to generate heat. They come in various sizes and power ratings, so choosing one that suits the machine’s power capacity is crucial.
     
   • Advantages: Easy to install, no need for additional fuel, and provides steady heat.
     
   • Considerations: They may draw a significant amount of power, which could impact the machine’s performance if not properly accounted for.
     

Installation Process
Installing a cab enclosure and heating system on a CAT 953 requires careful planning and technical knowledge. Below is a general overview of the installation process:

1. Preparing the Machine:
   • Begin by ensuring the machine is on a flat surface and turned off. Disconnect the battery to avoid any electrical accidents during the installation process.
     
   • Remove any parts that may obstruct the installation, such as existing cab components or seats.
     
2. Installing the Enclosure:
   • If using a factory kit, follow the manufacturer’s installation instructions carefully. Ensure all bolts, nuts, and seals are properly tightened to avoid leaks or structural issues.
     
   • For aftermarket or custom enclosures, ensure that the frame fits securely, and make necessary adjustments to ensure a tight seal.
     
3. Installing the Heating System:
   • For a hydronic system, connect the heater to the engine’s coolant system, following the guidelines provided by the manufacturer. Ensure that the heater is positioned in a location that maximizes airflow and efficiency.
     
   • For a diesel or electric heater, mount the heater unit securely inside the cab, ensuring that there is proper ventilation to avoid carbon monoxide buildup or overheating.
     
4. Testing the System:
   • Once the installation is complete, test the system by starting the engine and checking the operation of both the cab enclosure and the heating system.
     
   • Monitor the system for any signs of malfunction, such as air leaks, heating inefficiency, or strange noises, and address any issues promptly.
     

Real-World Example: Case Study of CAT 953 with Cab Enclosure and Heat
In a cold-weather construction zone, a fleet of CAT 953 loaders was upgraded with enclosed cabs and diesel-powered heating systems. The addition of these features allowed operators to continue working efficiently during the winter months, even when temperatures dropped well below freezing. One operator, previously working with an open cab, reported a dramatic improvement in comfort and focus, contributing to a noticeable increase in productivity. Additionally, the machines were able to maintain operational reliability even in harsh conditions, thanks to the protection provided by the new enclosures.
Conclusion
Upgrading a CAT 953 crawler loader with an enclosed cab and heating system is an investment that pays off in both comfort and productivity. While there are several options for both cab enclosures and heating systems, selecting the right combination depends on factors such as climate, budget, and the specific needs of the operator. Whether using a factory kit or custom solutions, the benefits of these upgrades are clear: improved safety, comfort, and overall efficiency in the field.