ASV VT-70: A Detailed Overview and Troubleshooting Guide

[MikePhua]

The ASV VT-70 is a versatile and robust compact track loader designed for a variety of construction and agricultural tasks. ASV, a company known for producing durable and reliable machinery, developed the VT-70 as a solution to tough terrains and demanding work environments. The VT-70 is particularly known for its vertical lift system, making it ideal for lifting and loading operations.
In this article, we will delve into the details of the ASV VT-70, its key features, common issues faced by operators, and some troubleshooting tips to maintain peak performance.
Understanding the ASV VT-70
The ASV VT-70 is part of ASV’s Versatile Track (VT) series, a lineup designed for enhanced lifting power and durability. The VT-70 specifically uses a vertical lift path that enables it to lift heavy loads directly upward, as opposed to the traditional radial lift, which allows for more outreach. This is particularly useful for high-lifting tasks and working in tight spaces.
Some key features include:

1. Powerful Engine: The VT-70 is powered by a diesel engine capable of delivering impressive horsepower, providing both lifting capacity and the ability to perform tasks on rough terrain.
   
2. Hydraulic System: Equipped with advanced hydraulics, the VT-70 can handle heavy attachments with ease, making it suitable for a wide range of operations.
   
3. Compact Design: The compact size of the VT-70 allows it to navigate through narrow spaces while still maintaining power and stability.
   
4. Track System: The tracked undercarriage provides superior traction in soft and uneven conditions, allowing the VT-70 to operate efficiently in various environments, from construction sites to landscaping jobs.
   
5. Operator Comfort: ASV focuses on operator comfort with spacious, ergonomic cabs and easy-to-use controls, reducing fatigue during long work hours.
   

Common Issues with the ASV VT-70 and Solutions
While the VT-70 is known for its durability and performance, like any piece of heavy machinery, it can experience issues over time. Understanding these problems can help operators identify and resolve them quickly, minimizing downtime and reducing repair costs.

1. Hydraulic Issues
   

Hydraulic problems are one of the most common issues reported with the VT-70. Since the VT-70 relies heavily on its hydraulic system for both lifting and powering attachments, a malfunction can significantly impact performance.

• Possible Causes:
  • Low hydraulic fluid levels.
    
  • Hydraulic fluid contamination.
    
  • Leaking hoses or seals.
    
  • Faulty hydraulic pumps or valves.
    
• Signs:
  • Slow or unresponsive hydraulic movements.
    
  • Reduced lifting capacity.
    
  • Unusual noises from the hydraulic system.
    
• Solutions:
  • Check hydraulic fluid levels and top up if necessary.
    
  • Regularly change the hydraulic fluid to avoid contamination.
    
  • Inspect hoses and seals for leaks and replace if needed.
    
  • If the hydraulic pressure is low, test the hydraulic pump and valves to ensure they are functioning correctly.
    

1. Engine Performance Issues
   

Engine performance is crucial for the overall functionality of the VT-70. If the engine is underperforming, it can affect everything from lifting to mobility.

• Possible Causes:
  • Clogged air or fuel filters.
    
  • Fuel quality issues (e.g., water contamination in fuel).
    
  • Engine wear and tear.
    
  • Faulty sensors or fuel injectors.
    
• Signs:
  • Difficulty starting the engine.
    
  • Power loss during operation.
    
  • Excessive smoke from the exhaust.
    
• Solutions:
  • Replace or clean the air and fuel filters regularly.
    
  • Ensure the fuel used is clean and free of contaminants.
    
  • Conduct a thorough engine inspection to check for signs of wear.
    
  • If necessary, replace faulty fuel injectors or sensors.
    

1. Track Wear and Damage
   

Since the VT-70 uses a tracked undercarriage, track issues are inevitable, especially when working on rough or uneven ground. Tracks can wear out or even break if not maintained properly.

• Possible Causes:
  • Excessive wear on the tracks due to heavy use or poor terrain.
    
  • Misalignment or improper tensioning of the tracks.
    
  • Damaged rollers or sprockets.
    
• Signs:
  • Uneven or jerky movement.
    
  • Excessive noise or vibration.
    
  • Tracks coming off or breaking during operation.
    
• Solutions:
  • Regularly inspect the tracks for wear and replace them when needed.
    
  • Adjust track tension according to the manufacturer’s recommendations.
    
  • Inspect rollers and sprockets for damage and replace them if necessary.
    

1. Electrical and Control System Malfunctions
   

As with many modern machines, the ASV VT-70 uses an electronic control system to manage various functions, from the engine to the hydraulics and track movement. Issues with the electrical system can lead to a range of problems.

• Possible Causes:
  • Faulty wiring or connections.
    
  • Malfunctioning sensors or control modules.
    
  • Battery or alternator issues.
    
• Signs:
  • Inconsistent operation of hydraulic functions or engine controls.
    
  • Dashboard error lights or warnings.
    
  • Electrical components failing to respond (e.g., lights, horns, etc.).
    
• Solutions:
  • Inspect all wiring for damage or loose connections.
    
  • Test sensors and control modules using diagnostic tools.
    
  • Check the battery voltage and the alternator output, replacing faulty components if necessary.
    

1. Overheating Issues
   

Overheating can be detrimental to any piece of heavy equipment, and the VT-70 is no exception. Overheating can occur if the cooling system is clogged, if there is insufficient coolant, or if the engine is under heavy strain.

• Possible Causes:
  • Clogged radiator or cooling fins.
    
  • Low coolant levels.
    
  • Dirty air filters restricting airflow to the engine.
    
  • Running the engine at excessive load for long periods.
    
• Signs:
  • Engine temperature rising above normal.
    
  • Coolant leaks or noticeable steam coming from the engine.
    
  • Engine power loss due to heat buildup.
    
• Solutions:
  • Clean the radiator and cooling fins regularly to ensure proper airflow.
    
  • Check and top up the coolant levels as needed.
    
  • Replace air filters and ensure proper airflow to the engine.
    
  • Avoid operating the VT-70 at maximum load for extended periods.
    

Preventive Maintenance Tips for the ASV VT-70
To ensure the longevity and efficient operation of the ASV VT-70, regular maintenance is key. Here are some preventive measures to follow:

1. Regular Fluid Checks: Ensure that hydraulic fluid, engine oil, and coolant are topped up and maintained at the recommended levels.
   
2. Routine Inspections: Regularly inspect the undercarriage, engine, hydraulic system, and electrical components for signs of wear, leaks, or damage.
   
3. Keep Tracks in Good Condition: Monitor track tension and alignment, and check for wear regularly. Proper maintenance of the tracks will extend their lifespan.
   
4. Clean the Machine: Keep the exterior of the machine clean, especially the radiator, cooling fins, and air intake filters. This helps prevent overheating and ensures optimal engine performance.
   
5. Use the Correct Fuel and Oil: Always use high-quality fuel and oils recommended by ASV to prevent engine and hydraulic system issues.
   

Conclusion
The ASV VT-70 is a powerful and reliable machine, but like any piece of heavy equipment, it requires proper care and maintenance to continue operating at its best. By understanding the common issues that can arise, such as hydraulic problems, engine performance issues, and track wear, operators can take proactive steps to troubleshoot and maintain the machine. Regular preventive maintenance is crucial for ensuring the longevity and efficiency of the VT-70, ultimately minimizing downtime and repair costs while maximizing productivity on the job site.