Bobcat 864 Skid Steer: Troubleshooting and Maintenance Tips

[MikePhua]

The Bobcat 864 skid steer loader is one of the most recognized pieces of heavy equipment used in various industries such as construction, landscaping, and agriculture. Known for its robust design, versatility, and reliability, it is a preferred choice for operators who need a compact yet powerful machine for various tasks. However, like any piece of machinery, the 864 is not immune to issues. In this article, we will explore common problems with the Bobcat 864, along with troubleshooting steps and maintenance tips to keep it running efficiently.
1. Overview of the Bobcat 864
The Bobcat 864 is part of Bobcat’s line of skid-steer loaders, introduced to deliver maximum power in a compact design. It is powered by a strong engine that provides enough lifting capacity and hydraulic power to handle heavy tasks. A few of its key features include:

• Engine Type: The Bobcat 864 comes equipped with a diesel engine, providing reliable power and fuel efficiency.
  
• Hydraulic Capacity: With a high-flow auxiliary hydraulic system, the 864 can operate a wide range of attachments, making it versatile for different job types.
  
• Lift Capacity: This model is designed to lift heavy loads, making it useful in construction and material handling.
  
• Compact Size: The compact dimensions of the 864 make it ideal for working in tight spaces or urban environments.
  

Despite its reliability, owners may encounter occasional issues, ranging from mechanical problems to operational malfunctions. Let’s break down some of these common issues and solutions.
2. Common Issues with the Bobcat 864
2.1 Hydraulic System Problems
One of the most common issues reported by owners of the Bobcat 864 is related to the hydraulic system. As the 864 is known for its high-flow hydraulic capabilities, any malfunction in this system can severely impact the performance of the skid steer.
Common Symptoms:

• Weak hydraulic power: The loader may struggle to operate attachments like buckets or grapples.
  
• Sluggish or erratic movement: The loader’s movement may become less responsive, particularly when lifting heavy loads.
  
• Leaks in hydraulic lines: Oil leakage can cause a drop in hydraulic pressure and affect overall performance.
  

Troubleshooting Tips:

• Check hydraulic fluid levels: Low hydraulic fluid can lead to insufficient power. Always ensure that the fluid levels are within the recommended range.
  
• Inspect for leaks: Regularly inspect hydraulic hoses and connections for signs of leaks or damage. Replace any worn or cracked hoses immediately.
  
• Replace the hydraulic filter: A clogged or dirty filter can impair the efficiency of the hydraulic system. Changing the filter regularly helps maintain peak performance.
  
• Check the hydraulic pump: If the hydraulic pump is malfunctioning, it could be the source of reduced lifting power. A professional mechanic may need to inspect and replace the pump if necessary.
  

2.2 Electrical System Failures
Electrical issues can arise in any complex machine like the Bobcat 864. Problems with the electrical system could lead to failure of key components like the starter motor, battery, or alternator.
Common Symptoms:

• Engine won't start: The engine may fail to start due to issues with the battery, starter motor, or ignition system.
  
• Electrical components malfunctioning: Issues with lights, signals, or other electrical components can be indicative of a broader electrical failure.
  

Troubleshooting Tips:

• Check the battery: Ensure the battery is properly charged and that terminals are clean and free of corrosion. A dead battery is a common cause of starting issues.
  
• Inspect the alternator: The alternator is responsible for charging the battery while the engine is running. A malfunctioning alternator can result in the battery losing charge.
  
• Examine wiring and fuses: Look for loose or damaged wiring and blown fuses, which can cause electrical components to fail. Replace any damaged parts promptly.
  

2.3 Engine Performance Issues
While the Bobcat 864’s engine is generally robust, performance issues can arise, especially if the machine is not properly maintained. Engine troubles can manifest in various ways, from rough idling to total engine failure.
Common Symptoms:

• Rough idling or stalling: The engine may idle roughly, or it may stall under load.
  
• Lack of power: The machine may struggle to lift heavy loads or move quickly, especially under stress.
  
• Excessive smoke: Blue or black smoke can be a sign of engine problems, such as burning oil or improper fuel combustion.
  

Troubleshooting Tips:

• Change the engine oil regularly: Dirty or old engine oil can lead to increased friction and poor engine performance. Follow the manufacturer’s recommended oil change intervals.
  
• Inspect the fuel system: Clogged fuel filters, worn-out fuel injectors, or poor-quality fuel can all contribute to engine performance issues. Replacing the fuel filter and using high-quality fuel will help maintain engine efficiency.
  
• Check air filters: A clogged air filter restricts airflow to the engine, leading to reduced performance. Ensure the air filter is clean and replace it regularly.
  
• Inspect the fuel injectors: If the engine is misfiring or not starting smoothly, it could be an issue with the fuel injectors. Clean or replace them as needed.
  

2.4 Tracking and Steering Issues
Steering problems can also arise, especially in machines that have seen heavy usage. Issues with the tracks or the steering system can make it difficult to operate the machine efficiently.
Common Symptoms:

• Uneven tracking: If one track is moving faster than the other, it could be a sign of misalignment or issues with the drive motor.
  
• Difficulty steering: The machine may become hard to steer, or the steering controls may become less responsive.
  

Troubleshooting Tips:

• Check track tension: Tracks that are too tight or too loose can cause uneven tracking and difficulty steering. Adjust the tension to the manufacturer’s specifications.
  
• Inspect drive motors: If one side of the machine is not moving properly, it could be an issue with the drive motor on that side. A malfunctioning motor should be repaired or replaced.
  
• Lubricate steering components: Regular lubrication of the steering components helps prevent wear and tear, ensuring smooth and responsive control.
  

3. Preventative Maintenance for the Bobcat 864
Proper maintenance is crucial to keeping the Bobcat 864 in top condition. By following a regular maintenance schedule, operators can prevent many of the common issues mentioned above.

• Check fluid levels: Regularly inspect the engine oil, hydraulic fluid, and coolant levels. Low fluid levels can lead to overheating and poor performance.
  
• Clean the machine: Dirt and debris can clog air filters, hydraulic systems, and other components. Cleaning the machine after each use can prevent many issues.
  
• Inspect the undercarriage: Regularly check the tracks and undercarriage for damage. Replace worn-out tracks or components as needed.
  
• Lubricate moving parts: Keep moving parts such as the arms, tracks, and steering components properly lubricated to prevent premature wear.
  

4. Conclusion
The Bobcat 864 skid steer loader is a versatile and reliable machine, but like any piece of heavy equipment, it requires proper care and maintenance. By understanding the common issues that can arise and knowing how to troubleshoot and maintain the machine, operators can ensure that the Bobcat 864 continues to perform at its best for years to come.
Whether you are dealing with hydraulic problems, electrical malfunctions, or engine performance issues, taking a proactive approach to maintenance can help avoid costly repairs and downtime. Always follow the manufacturer’s recommendations and regularly inspect the machine to ensure it stays in optimal condition for your projects.