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Case 350B Crawler Loader Detailed Overview
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The Case 350B is a classic crawler loader well-regarded for its robust design, reliable performance, and versatility in construction, landscaping, and agricultural tasks. Its combination of moderate power, manageable size, and functional hydraulics makes it a valuable machine for tasks ranging from dirt moving to light excavation work. This article provides a comprehensive look at the Case 350B's specifications, key features, maintenance considerations, and practical advice accompanied by relevant technical explanations.
Engine and Powertrain
The Case 350B is powered by the Case G188D engine, a 4-cylinder, 4-cycle, naturally aspirated diesel engine with a displacement of approximately 3.1 liters (188 cubic inches). This engine produces around 44 horsepower (gross), delivering sufficient power for the machine’s intended operational range. The open chamber design aids combustion efficiency, and five main bearings with positive pressure oil lubrication ensure engine longevity and reliability when properly maintained. The engine runs on No. 2 diesel fuel typical for construction equipment.
The transmission system provides consistent power delivery to the tracks and loader functions, supporting smooth operation across a variety of terrains and loads. While details vary depending on specific equipment setups, the powertrain is designed for dependability and ease of repair, leveraging proven Case components known for durability.
Hydraulics and Loader Capabilities
The loader assembly on the 350B provides good material handling capacity, suitable for moving soil, gravel, and other loose materials. Hydraulic power supports efficient bucket movement and lifting operations, enhancing cycle times on loading jobs. The bucket capacity typically ranges around 0.75 cubic yards, balancing load size with machine stability and control.
Hydraulic components are designed for ease of service and parts availability, including cylinders, hoses, and control valves. Operators should monitor hydraulic fluid regularly and adhere to scheduled maintenance to preserve system responsiveness and prevent leaks.
Chassis and Undercarriage
The crawler undercarriage on the 350B offers solid traction and stability in varied terrains, including soft or uneven ground. Track components such as rollers, idlers, and sprockets are built for extended wear and repairability, helping maintain uptime. The crawler configuration improves maneuverability in confined spaces and rough environments compared to wheeled loaders.
Dimensions and Weight
The machine’s overall size suits a range of job sites. It is compact enough for easier transport behind medium-duty trucks on trailers without large special hauling equipment.
  • Approximate length: Around 11 feet (varies by configuration)
  • Operating weight: Typically in the range of 12,000 to 14,000 pounds, depending on attachments and options
  • Track width and ground contact balance stability and flotation for routine loader use
Fuel and Capacity
The 350B has a fuel capacity of about 40 gallons, providing sufficient operating time for medium-duty projects before refueling is necessary. Fuel consumption rates vary based on workload and engine tuning but remain efficient within the powerband.
Maintenance and Service Recommendations
Regular upkeep is crucial for maximizing the life of the Case 350B and ensuring reliable performance:
  • Change engine oil and filters at recommended intervals to prevent premature engine wear.
  • Maintain hydraulic fluid levels and replace filters to keep the hydraulic system responsive.
  • Inspect undercarriage components periodically for wear or damage, replacing parts like track rollers and sprockets if excessive wear occurs.
  • Grease all pivot points and loader linkages regularly to reduce friction and extend service intervals.
  • Monitor coolant levels and radiator condition to avoid overheating, especially during hot or dusty conditions.
  • Use genuine or high-quality aftermarket parts to ensure compatibility and machine integrity.
Technical Terms Explained
  • Crawler Loader: A track-type loader combining a tracked undercarriage with front bucket loading capabilities.
  • Naturally Aspirated Engine: An engine that uses atmospheric pressure for air intake without forced induction (no turbo or supercharger).
  • Open Chamber: A cylinder design aimed at efficient combustion and cooling.
  • Positive Pressure Oil Lubrication: An oiling system that forces lubricant under pressure to critical engine parts.
  • Bucket Capacity: The volume of material that can be held in the loader’s bucket, measured in cubic yards.
  • Track Rollers/Idlers: Components supporting and guiding the tracks for smooth movement.
  • Hydraulic Fluid: Oil used in the hydraulic system to transfer power and lubricate components.
A Practical Example
A landscaping contractor utilizing a Case 350B for yard leveling and light excavation highlighted the machine’s ability to navigate tight spaces due to its tracked undercarriage and compact size. Despite the machine’s age, consistent maintenance, including routine oil and filter changes and diligent greasing, kept the equipment reliable over several years. The contractor appreciated its mechanical simplicity and ease of obtaining parts, reducing downtime compared to more complex modern loaders.
Additional Advice for Operators
  • Familiarize yourself with the operator's manual for correct operating procedures to avoid unnecessary strain or damage.
  • Keep track of operating hours and maintenance tasks in a log to anticipate parts replacement.
  • When transporting, secure the machine correctly and check track tension beforehand.
  • Consider periodic professional inspections, especially before strenuous project phases or seasonal storage.
The Case 350B remains a durable, practical choice for operators seeking a reliable crawler loader for moderate construction and landscaping tasks. Its robust engine, manageable size, and dependable hydraulic system combine to deliver steady performance and ease of maintenance in a classic package appreciated by many equipment owners.
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