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Restoring and Operating an Old Cletrac Dozer: Insights and Tips
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The Cletrac dozer is a piece of machinery that has earned its place in the history of heavy equipment. Known for its rugged design and powerful performance, these vintage machines were used for various tasks in construction and farming. Today, Cletrac dozers are considered a part of the nostalgic landscape of classic tractors, yet their importance in the development of modern construction machinery cannot be overstated.
In this article, we’ll explore the Cletrac dozer’s history, its significance in the evolution of heavy machinery, and tips for restoring and operating these machines. For enthusiasts, vintage equipment like the Cletrac dozer is a labor of love, but keeping these machines running smoothly requires knowledge, patience, and sometimes a bit of creative problem-solving.
The History of Cletrac Dozers
Cletrac dozers were produced by the Cleveland Tractor Company (often referred to as Cletrac), which began operations in 1912. The company became known for building high-quality, durable equipment for both agricultural and construction purposes. Cletrac's innovative approach to machine design allowed the dozers to tackle tough terrains, making them popular in both farming and infrastructure projects.
The Cletrac dozers were notable for their versatility and adaptability. These machines were initially powered by gasoline engines but later switched to more powerful diesel engines as technology progressed. The use of continuous tracks, instead of wheels, gave the Cletrac dozers superior traction, making them ideal for working in muddy, rough, or uneven terrain.
Over the decades, Cletrac dozers evolved with improvements in engine power, track design, and overall durability. However, as larger, more advanced dozers became available, Cletrac ceased production of its dozers by the 1950s. While no longer in production, Cletrac dozers are still cherished by collectors and restorers.
Restoring an Old Cletrac Dozer: Key Considerations
Restoring a Cletrac dozer can be a challenging but rewarding task. Given that these machines are often decades old, they may require significant work to get them back into operating condition. Here are some important steps and considerations to keep in mind when restoring a Cletrac dozer:
1. Inspect the Frame and Chassis
The first step in restoring any old machinery is to examine the frame and chassis for signs of damage or rust. Cletrac dozers, like other vintage machines, are prone to wear and corrosion, especially if they’ve been sitting idle for a long period. A thorough inspection will help determine the structural integrity of the machine.
Look for:
  • Cracks in the frame: These may require welding or reinforcement.
  • Rust: Rust can weaken the structure and should be addressed with sandblasting and painting.
  • Wear in the tracks: Cletrac dozers rely heavily on their tracks, so they should be inspected for wear, tears, or cracks. Replacement tracks can be expensive, so repairing them is often a better option.
2. Engine Restoration and Fuel System Check
The heart of any dozer is its engine, and for old Cletrac models, this is where many restoration projects begin. Older Cletrac dozers were originally powered by gasoline engines, but diesel conversions were common in later models. When restoring the engine, key considerations include:
  • Cleaning and inspecting the fuel system: Over time, fuel lines and carburetors can become clogged with debris and dirt. Cleaning the carburetor and replacing the fuel lines can restore fuel flow and prevent starting issues.
  • Compression testing: If the engine hasn't been run in a while, perform a compression test to assess the engine's condition. Low compression could indicate that the engine needs a rebuild.
  • Replacing spark plugs or injectors: Old spark plugs or fuel injectors may not fire properly, so replacing them can help ensure smooth engine operation.
  • Checking the cooling system: The radiator and cooling system should be checked for leaks, rust, and clogs. A functioning cooling system is crucial to prevent engine overheating.
3. Hydraulics and Hydraulic Pumps
Cletrac dozers often use hydraulic systems to operate the blade and other attachments. Over time, hydraulic components can wear out, seals may degrade, and hydraulic fluid can become contaminated.
Key tasks to address during the restoration process:
  • Inspect hydraulic hoses and seals: Look for leaks or cracks in the hoses. Worn seals should be replaced to avoid fluid leaks.
  • Clean and refill the hydraulic reservoir: Dirty hydraulic fluid can damage pumps and cylinders. Drain the old fluid and replace it with clean, manufacturer-recommended fluid.
  • Test the hydraulic pumps: Check the hydraulic pumps for proper pressure and flow. If the pump isn’t working correctly, it may need to be repaired or replaced.
4. Transmission and Steering System
Cletrac dozers feature a transmission that transfers power from the engine to the tracks. The transmission system should be thoroughly inspected during the restoration process to ensure it’s functioning properly.
Consider these steps:
  • Check the clutch and gears: Make sure the clutch engages smoothly and that the transmission shifts without grinding or slipping.
  • Inspect the steering mechanism: The steering mechanism, which operates through a system of levers and brakes, should be free from wear and corrosion. Replace any damaged parts that may impair the steering performance.
5. Electrical System and Wiring
Restoring the electrical system of a vintage Cletrac dozer can be tricky, but it’s a crucial part of the process. Electrical components such as the battery, alternator, and wiring should be checked for wear and corrosion.
Here are some steps to follow:
  • Inspect the battery: If the dozer’s battery is old or damaged, it should be replaced. Also, ensure that the battery is properly charged and connected to the system.
  • Check the wiring: Over time, wiring can degrade or become corroded. Inspect and clean the connections, and replace any damaged wires.
  • Test the lighting system: Ensure that headlights, tail lights, and any other lights are working. Given the age of the equipment, it may be necessary to upgrade some lighting components.
6. Final Testing and Adjustments
After addressing the major components, perform a series of tests to ensure that the Cletrac dozer is functioning properly. Start the engine and check for smooth operation, proper track engagement, and responsive hydraulics. Adjust the track tension and make sure that the machine is aligned correctly.
Also, take the dozer for a short test drive in a controlled environment. This will help you identify any potential issues with the transmission, steering, or hydraulics that weren’t apparent during earlier tests.
Operating Tips for Cletrac Dozers
Once your Cletrac dozer is restored and ready for use, there are a few key operating tips to help extend its life and ensure smooth performance:
  • Avoid Overloading: The Cletrac dozer, while durable, was not designed to handle extreme loads like modern machinery. Always be mindful of the weight and strain you place on the dozer to avoid damaging the tracks or engine.
  • Regular Maintenance: Like any piece of heavy machinery, a Cletrac dozer requires regular maintenance. Perform routine checks on the engine, hydraulic system, and transmission to ensure longevity.
  • Track Maintenance: Keep the tracks clean and well-lubricated. Over time, the tracks can become misaligned, causing unnecessary wear and tear. Regular adjustments and cleaning will help maintain their effectiveness.
  • Hydraulic Fluid Changes: Change the hydraulic fluid regularly to prevent contamination and ensure the system operates smoothly.
Conclusion: The Legacy of the Cletrac Dozer
Restoring an old Cletrac dozer is not just about preserving a piece of equipment—it’s about connecting with the past and appreciating the craftsmanship that went into designing these early workhorses of the construction world. While it requires dedication and expertise, bringing an old Cletrac dozer back to life can be an incredibly rewarding project.
For vintage machinery enthusiasts, these dozers represent a link to a time when heavy equipment was simpler, yet incredibly effective in getting the job done. Whether you’re restoring one of these dozers as a collector’s item, for use on the farm, or for small-scale construction work, the Cletrac dozer’s legacy lives on in the hearts of those who respect the history and hard work behind these incredible machines.
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