1969 Case 850 Crawler Loader

[MikePhua]

The 1969 Case 850 Crawler Loader is one of those iconic pieces of machinery that, despite being decades old, continues to garner attention and affection from equipment enthusiasts and collectors alike. Known for its durability and performance, the Case 850 series represents an era of mechanical innovation and practical design in the world of construction and earthmoving equipment. Whether you're considering restoring a 1969 Case 850 or just curious about its history and capabilities, this article will provide a detailed overview of the machine, its features, and common concerns.
History and Development of the Case 850 Crawler Loader
The Case 850 Crawler Loader was part of the Case 800 series, which marked a significant development in the company’s line of construction machinery. Introduced in the late 1960s, the 850 Crawler Loader was designed to be a versatile machine capable of handling a variety of tasks on the job site, including digging, lifting, and moving materials. This made it a popular choice in industries like construction, mining, and landscaping.
At the time of its release, the 850 was a standout model in Case’s lineup, incorporating features that made it both powerful and reliable, such as a robust engine, excellent traction, and user-friendly controls. The machine was intended for operators who needed a durable, all-purpose loader that could work efficiently on tough, uneven terrain.
Key Features and Specifications
The 1969 Case 850 Crawler Loader came equipped with several key features that made it a strong contender in the heavy equipment market. Below are some of its core specifications and features:

1. Engine and Power:
   • Engine Type: The Case 850 was powered by a 6-cylinder diesel engine. The engine was known for its reliability and relatively low maintenance requirements.
     
   • Horsepower: It produced around 85 horsepower, which was sufficient for most medium-duty applications, making it a strong performer in earthmoving tasks.
     
   • Displacement: The engine's displacement was about 354 cubic inches, delivering ample torque to power through tough conditions.
     
2. Transmission:
   • The 850 crawler loader was equipped with a powershift transmission, providing smooth shifting and ease of operation. This allowed operators to shift gears while maintaining momentum, which is crucial for maintaining productivity in fast-paced construction environments.
     
3. Hydraulic System:
   • The hydraulic system on the Case 850 was robust, designed to handle the demanding requirements of lifting and digging. This included a hydraulic-powered lift arm and bucket, allowing the loader to handle various materials effectively.
     
4. Undercarriage and Tracks:
   • The Case 850 featured a tracked undercarriage, which provided excellent stability and traction, especially on soft or uneven ground. This made it ideal for construction sites and other rugged terrains.
     
   • The tracks were durable and provided good flotation, ensuring that the machine could work in wet or muddy conditions without getting stuck.
     
5. Operator Comfort and Controls:
   • While the 850 wasn’t as advanced in terms of operator comfort as modern machines, it was designed with ergonomics in mind for the time. It featured simple, intuitive controls, which allowed operators to easily manipulate the loader functions.
     
6. Bucket and Attachments:
   • The loader's bucket was designed for heavy-duty work, capable of moving large quantities of material. It could also be swapped out with various other attachments depending on the job, increasing the machine’s versatility.
     

Common Issues and Maintenance for the 1969 Case 850
Like any older machine, the 1969 Case 850 Crawler Loader can encounter various issues over time, especially if it hasn’t been properly maintained or if parts have worn down due to years of use. Here are some common issues faced by owners of the Case 850 and how to address them:

1. Hydraulic System Problems:
   • Cause: Hydraulic leaks are one of the most common issues in older machines like the Case 850. These can stem from worn-out seals, hoses, or fittings.
     
   • Solution: Regular inspection and maintenance of the hydraulic system are crucial. Checking for leaks, replacing old hoses, and refilling hydraulic fluid are necessary steps to keep the system in top condition.
     
2. Engine Overheating:
   • Cause: Overheating can occur if the engine coolant system is clogged or if the radiator is dirty. Over time, sediment and dirt can build up in the cooling system, reducing its efficiency.
     
   • Solution: Regularly clean the radiator and flush the cooling system to prevent overheating. Ensure that the thermostat is functioning properly and replace the coolant as needed.
     
3. Track and Undercarriage Wear:
   • Cause: The tracks on the Case 850 can wear out over time, particularly if the machine is frequently used on rocky or abrasive surfaces.
     
   • Solution: Regular inspection of the undercarriage, including the tracks, rollers, and sprockets, is important. Replacing worn-out components in a timely manner can prevent further damage and ensure the loader operates efficiently.
     
4. Transmission Slipping or Sticking:
   • Cause: If the transmission begins slipping or has trouble shifting, it may be due to low fluid levels or internal wear. Overuse without proper fluid changes can lead to significant transmission issues.
     
   • Solution: Regularly check and change the transmission fluid. If the slipping persists, the transmission may need to be serviced or replaced, depending on the extent of the damage.
     
5. Electrical Issues:
   • Cause: Older machines can experience electrical problems due to worn-out wiring, faulty connections, or a failing battery.
     
   • Solution: Inspect the wiring for corrosion or wear and tear. Ensure that the battery is properly charged and the alternator is functioning correctly.
     

Restoring and Maintaining a 1969 Case 850
If you own a 1969 Case 850 or are considering restoring one, it's important to approach the project with a solid plan. Restoring older equipment can be rewarding, but it also requires significant effort and investment. Here are some key steps to consider when restoring a Case 850:

1. Assess the Condition:
   • Begin by thoroughly assessing the machine’s condition. Check the engine, hydraulics, transmission, and tracks. Identify areas that require immediate attention and prioritize repairs accordingly.
     
2. Source Replacement Parts:
   • Finding replacement parts for older machines can be challenging. Fortunately, several online resources, parts suppliers, and specialized equipment dealers still carry parts for vintage Case machines. Be prepared to hunt for hard-to-find components or consider aftermarket options.
     
3. Upgrade Key Components:
   • While restoring the machine, consider upgrading key components to improve performance and reliability. For example, upgrading the hydraulic system or installing a more efficient cooling system can improve the overall functionality of the loader.
     
4. Work with Professionals:
   • If you are not experienced with heavy equipment repairs, consider working with professionals who specialize in restoring classic machinery. They can provide valuable expertise and ensure that the restoration is done correctly.
     

Conclusion
The 1969 Case 850 Crawler Loader remains a respected and beloved piece of machinery, known for its durability and versatility. While it may present some challenges in terms of maintenance and repairs, it is still a reliable machine for those who appreciate classic construction equipment. Whether you're restoring an old Case 850 or simply using one in its original condition, understanding its history, key features, and common issues will ensure that you get the most out of this vintage loader for years to come. With the right care and attention, the Case 850 can continue to be a workhorse on the job site, just as it was when it was first introduced over five decades ago.