The Bobcat T870 is a powerful and versatile compact track loader widely used in construction, landscaping, and agriculture. While it’s known for its impressive performance and capabilities, like any heavy machinery, it can experience issues over time. This comprehensive guide will explore common problems associated with the Bobcat T870 and provide detailed solutions to help owners and operators maintain their equipment’s optimal performance.
Overview of the Bobcat T870
Before diving into specific problems, let’s review some key features of the Bobcat T870:
| Feature | Specification |
|---|---|
| Operating Weight | 12,678 lbs (5,751 kg) |
| Rated Operating Capacity | 3,525 lbs (1,599 kg) |
| Engine | Tier 4 Bobcat Engine, 100 HP |
| Lift Height | 132 inches (3,353 mm) |
| Track Width | 17.7 inches (450 mm) |
Common Problems and Solutions
Engine Issues
One of the most critical components of any heavy machinery is its engine. The Bobcat T870 is no exception, and several engine-related issues can arise.
Engine Fails to Start
If your T870’s engine cranks but doesn’t start, several factors could be at play:
- Fuel System Problems: Check the fuel level, quality, and ensure there are no blockages in the fuel lines or filters.
- Battery Issues: A weak or dead battery can prevent the engine from starting. Check the battery’s charge and connections.
- Glow Plug Malfunction: In cold weather, faulty glow plugs can prevent the engine from starting.
Solution: Start by checking the fuel system, ensuring you’re using clean, fresh fuel and that all filters are unobstructed. If the problem persists, test the battery and replace it if necessary. For glow plug issues, consult a professional mechanic for diagnosis and replacement.
Engine Overheating
Overheating can cause severe damage to your T870’s engine if not addressed promptly.
Causes and Solutions:
- Low Coolant Levels: Regularly check and top up coolant levels.
- Radiator Issues: Clean the radiator fins and ensure the fan is functioning correctly.
- Thermostat Failure: A stuck thermostat can prevent proper coolant circulation. Replace if necessary.
- Oil Level Problems: Both low and high oil levels can cause overheating. Maintain proper oil levels.
Hydraulic System Problems
The hydraulic system is crucial for the T870’s lifting and maneuvering capabilities. Common issues include:
Hydraulic Leaks
Leaks can lead to reduced performance and potential environmental hazards.
Solution: Regularly inspect hydraulic hoses, fittings, and seals for signs of wear or damage. Replace any compromised components immediately. Use only manufacturer-recommended hydraulic fluids to maintain system integrity.
Slow or Weak Hydraulic Performance
If your T870’s hydraulic functions seem sluggish or weak, consider the following:
- Low Hydraulic Fluid: Check and replenish fluid levels as needed.
- Contaminated Fluid: Regular fluid and filter changes are essential to prevent contamination.
- Worn Pump: A failing hydraulic pump can significantly impact performance.
Solution: Maintain proper fluid levels and quality through regular checks and changes. If problems persist after addressing these issues, consult a professional to inspect the hydraulic pump and other system components.
Track and Undercarriage Issues
The track system is a defining feature of the T870, but it can also be a source of problems if not properly maintained.
Track Tension Problems
Improper track tension can lead to premature wear and reduced performance.
Solution: Check track tension regularly using the manufacturer’s specifications. Adjust as needed, typically aiming for about 2-3 inches of track sag at the midpoint between the front idler and the drive sprocket.
Excessive Track Wear
Uneven or rapid track wear can significantly impact machine performance and operating costs.
Solution:
- Rotate the tracks periodically to ensure even wear.
- Avoid unnecessary pivoting on abrasive surfaces.
- Keep the undercarriage clean to prevent material buildup that can accelerate wear.
Electrical System Issues
Electrical problems can manifest in various ways, from instrument panel malfunctions to complete system failures.
Battery Drainage
If you’re experiencing frequent battery issues, consider:
- Parasitic Draws: Identify and fix any electrical components drawing power when the machine is off.
- Alternator Problems: A faulty alternator may not be charging the battery properly.
Solution: Use a multimeter to check for parasitic draws and test the alternator’s output. Replace faulty components as necessary.
Control System Malfunctions
Issues with the joystick controls or instrument panel can severely impact operability.
Solution:
- Check all electrical connections for corrosion or looseness.
- Update the machine’s software if available.
- For persistent issues, consult a Bobcat technician for advanced diagnostics and repairs.
Preventative Maintenance Tips
To minimize the occurrence of problems with your Bobcat T870, follow these preventative maintenance tips:
- Regular Inspections: Conduct daily visual inspections of key components.
- Follow Service Intervals: Adhere to the manufacturer’s recommended service schedule.
- Use Quality Parts and Fluids: Always use OEM or high-quality aftermarket parts and fluids.
- Keep It Clean: Regularly clean the machine, especially the undercarriage and radiator.
- Operator Training: Ensure all operators are properly trained to use the machine correctly.
When to Seek Professional Help
While many issues can be addressed by owners and operators, some problems require professional attention. Consider consulting a certified Bobcat technician if:
- You’re experiencing persistent issues after attempting basic troubleshooting.
- There are unusual noises, vibrations, or smells coming from the machine.
- You notice significant drops in performance or fuel efficiency.
- The machine has been involved in an accident or experienced extreme operating conditions.
Conclusion
The Bobcat T870 is a robust and reliable machine when properly maintained. By understanding common problems and their solutions, owners and operators can maximize uptime, reduce operating costs, and extend the life of their equipment. Regular maintenance, prompt attention to issues, and proper operation are key to keeping your T870 running smoothly for years to come.
FAQs
What is the most common problem with the Bobcat T870?
Engine and hydraulic system issues are most common. Regular maintenance can prevent many of these problems.
How often should I service my Bobcat T870?
Follow the manufacturer’s recommendations, typically every 250 hours or annually, whichever comes first.
Can I perform maintenance on my T870 myself?
Basic maintenance can be done by owners, but complex issues should be handled by certified technicians.
What causes excessive track wear on the T870?
Improper tension, abrasive surfaces, and poor operating habits are common causes of excessive track wear.
How can I improve the fuel efficiency of my Bobcat T870?
Regular maintenance, proper operation, and avoiding idle time can significantly improve fuel efficiency.