Case 855D Loader: Overview, Common Issues, and Maintenance Tips

[MikePhua]

The Case 855D loader is a powerful and versatile piece of machinery commonly used in the construction, landscaping, and agricultural industries. Known for its durability, compact size, and strong performance, the 855D is a trusted tool for heavy lifting, material handling, and other applications. However, like any piece of machinery, it is not immune to wear and tear. This article explores the key features, common problems, troubleshooting methods, and maintenance strategies for the Case 855D loader.
Key Features of the Case 855D Loader
The Case 855D loader is engineered for efficiency and productivity, offering a range of features that make it ideal for a variety of tasks.

1. Engine Power and Performance: The 855D is equipped with a reliable engine that delivers the power necessary to handle tough tasks. With a robust horsepower rating, the loader can tackle a wide range of material-handling applications, from lifting heavy loads to pushing soil or debris.
   
2. Hydraulic System: The hydraulic system in the 855D is designed to offer high flow rates, ensuring that attachments such as buckets, forks, and grapples perform optimally. The system is built to handle demanding work environments and provides excellent lifting and digging capabilities.
   
3. Compact Size: Despite its impressive power, the 855D is compact and maneuverable, making it ideal for working in tight spaces. Its small size allows operators to easily navigate around obstacles, making it a popular choice for projects that require precision and accessibility.
   
4. Operator Comfort: The 855D loader features an ergonomic operator station with easy-to-use controls, ensuring that operators can work efficiently and comfortably. Visibility from the cab is good, allowing the operator to maintain full awareness of the surrounding area.
   
5. Durability and Build Quality: Case is known for producing durable and rugged machinery, and the 855D is no exception. It features a heavy-duty frame and durable components designed to withstand tough conditions, ensuring that the machine remains operational for a long time with proper maintenance.
   

Common Issues with the Case 855D Loader
While the 855D loader is a reliable machine, several issues can arise due to wear and tear, improper maintenance, or external factors. Here are some of the most common problems reported by owners and operators:

1. Hydraulic System Leaks: Hydraulic leaks are a common issue in loaders, especially as the machine ages. Leaks can occur in hoses, fittings, cylinders, or the hydraulic pump. Low hydraulic fluid levels or pressure loss can affect the machine's lifting ability and overall performance.
   
2. Starting Issues: Starting problems can occur due to a variety of reasons, including a dead battery, faulty starter motor, or issues with the ignition system. Electrical problems can also be caused by corroded connections, blown fuses, or wiring issues.
   
3. Transmission Problems: The loader's transmission may experience issues, including difficulty shifting gears or a loss of power to the wheels. Transmission problems are often caused by low fluid levels, damaged components, or a malfunctioning torque converter.
   
4. Overheating: Engine overheating can occur due to a variety of factors, such as a clogged radiator, low coolant levels, or a malfunctioning cooling fan. If the engine temperature exceeds the recommended range, it can lead to serious engine damage.
   
5. Wear and Tear on the Loader Arms: Over time, the loader arms can experience wear, which can lead to reduced lifting capacity or difficulty in raising or lowering the bucket. This is often due to worn-out pins, bushings, or damaged hydraulic cylinders.
   
6. Electrical Issues: Electrical problems can affect the machine's performance and may involve the control panel, sensors, wiring, or alternator. Poor electrical connections or faulty sensors can cause erratic behavior in the loader’s systems.
   

Troubleshooting Case 855D Loader Problems
When faced with any of the issues mentioned above, it’s important to follow a logical troubleshooting process to identify the root cause and implement a solution. Below are some troubleshooting steps for common problems:

1. Hydraulic System Troubleshooting:
   • Check Fluid Levels: Start by checking the hydraulic fluid levels to ensure they are within the recommended range. Low fluid levels can cause inadequate pressure, leading to poor performance.
     
   • Inspect for Leaks: Look for signs of hydraulic fluid leakage around hoses, connections, and cylinders. If leaks are found, the damaged components should be repaired or replaced.
     
   • Check the Hydraulic Pump: If the system is experiencing a loss of power, the hydraulic pump should be tested to ensure it is functioning correctly and providing adequate pressure.
     
2. Starting Issues:
   • Test the Battery: Use a multimeter to check the voltage of the battery. If the voltage is low, the battery may need to be recharged or replaced.
     
   • Check the Ignition System: Inspect the ignition switch and wiring for signs of damage or corrosion. A faulty ignition switch can prevent the loader from starting.
     
   • Inspect the Starter Motor: If the battery is fine and the ignition system is functioning, the starter motor should be inspected for wear. If necessary, the starter motor may need to be replaced.
     
3. Transmission Problems:
   • Check Fluid Levels: Low transmission fluid can lead to shifting problems. Ensure the fluid is at the correct level, and top it up if necessary.
     
   • Inspect for Leaks: Transmission fluid leaks can lead to low fluid levels, which can cause transmission problems. Inspect the transmission for leaks and repair them as needed.
     
   • Test the Torque Converter: If the transmission is slipping, the torque converter may be malfunctioning. In this case, a professional inspection and repair may be necessary.
     
4. Overheating:
   • Check Coolant Levels: Ensure that the coolant is at the correct level and is free from debris. Low coolant levels or dirty coolant can cause the engine to overheat.
     
   • Clean the Radiator: Inspect the radiator for blockages, dirt, or debris that could obstruct airflow. Cleaning the radiator and ensuring proper airflow can prevent overheating.
     
   • Test the Cooling Fan: If the radiator is clear, the issue may be with the cooling fan. Check that the fan is operating properly and replace it if necessary.
     
5. Wear on Loader Arms:
   • Inspect Pins and Bushings: Over time, the pins and bushings in the loader arms can wear out, causing the arms to become loose and reducing the machine’s lifting capacity. Replace worn pins or bushings as needed.
     
   • Check Hydraulic Cylinders: Inspect the hydraulic cylinders for leaks or damage. If the cylinders are damaged, they may need to be rebuilt or replaced.
     
6. Electrical Issues:
   • Inspect Wiring and Connections: Check all wiring and connections for signs of wear, corrosion, or loose connections. Tighten or replace any faulty connections.
     
   • Test Fuses and Relays: Blown fuses or faulty relays can cause electrical issues. Inspect the fuse box and replace any blown fuses or damaged relays.
     
   • Check Sensors and Control Panels: If the electrical issue persists, test the sensors and control panels for faults. Faulty sensors or control panels may need to be replaced.
     

Maintenance Tips for the Case 855D Loader
To keep the Case 855D loader operating efficiently and avoid costly repairs, regular maintenance is essential. Here are some maintenance tips:

1. Regular Fluid Checks:
   • Check and top up the engine oil, hydraulic fluid, and transmission fluid as required.
     
   • Replace engine oil and hydraulic fluid at the recommended intervals.
     
2. Air Filter Maintenance:
   • Clean or replace the air filter regularly to ensure that the engine receives proper airflow. A clogged air filter can reduce engine performance and fuel efficiency.
     
3. Grease Moving Parts:
   • Grease the loader arms, pivot points, and other moving parts regularly to reduce wear and extend the life of the components.
     
4. Inspect and Replace Tires:
   • Regularly check the condition of the tires and replace them when they show signs of excessive wear. Properly inflated tires also ensure optimal performance.
     
5. Monitor Engine Performance:
   • Keep an eye on engine temperature, oil pressure, and other performance indicators to catch issues early before they become serious problems.
     
6. Clean the Cooling System:
   • Keep the radiator and cooling system clean to prevent overheating. Clean the radiator fins and ensure that the cooling fan operates correctly.
     

Conclusion
The Case 855D loader is a reliable and powerful machine that can handle a variety of tasks. However, like all machinery, it requires proper maintenance and attention to prevent and address common issues such as hydraulic leaks, starting problems, and transmission issues. By following the troubleshooting steps and maintenance tips outlined in this article, operators can ensure that their Case 855D continues to perform at its best and lasts for many years of reliable service. Whether in construction, landscaping, or agriculture, the Case 855D is a versatile and durable piece of equipment that can meet the demands of any job.