FMC Tracked Skidder: Design, Use, and Troubleshooting

[MikePhua]

Introduction to FMC Tracked Skidders
FMC (Food Machinery Corporation) tracked skidders are specialized machines used primarily in the forestry industry for hauling logs and other materials from the forest to roadsides or processing areas. These machines are particularly useful in areas where conventional wheeled skidders cannot operate due to soft ground or steep terrain. Their tracked design offers enhanced stability and traction on uneven, muddy, or marshy surfaces, making them invaluable in challenging environments.
A tracked skidder’s primary function is to drag felled trees or logs to a landing area for further processing. Due to their high-powered engines, advanced hydraulics, and durable build, FMC skidders are ideal for heavy-duty work, particularly in the rough terrain of logging operations. This article explores the features, uses, common issues, and troubleshooting steps associated with FMC tracked skidders.
Features and Capabilities of FMC Tracked Skidders
Tracked skidders, such as those made by FMC, come with several features designed for rugged forestry work. Key attributes include:

1. Tracked Design: The tracks of FMC skidders provide greater surface area contact with the ground, which helps distribute weight more evenly. This reduces the chances of the machine sinking into soft terrain and provides improved traction on slippery surfaces such as mud, snow, or steep inclines.
   
2. High Towing Capacity: FMC tracked skidders are equipped with powerful winches and hydraulics capable of pulling large logs or tree trunks over extended distances. This makes them effective for hauling timber through challenging environments.
   
3. Durability and Strength: Built to withstand harsh conditions, FMC skidders are reinforced with high-strength components and rugged frames. This construction helps prevent damage when hauling heavy loads over rough terrain.
   
4. Hydraulic Systems: These machines typically feature advanced hydraulic systems for operating the winch, steering, and various attachments. The hydraulic efficiency allows the operator to move and secure logs effectively.
   
5. Maneuverability: Despite their large size, FMC tracked skidders are designed to be highly maneuverable in tight spaces. The skidder’s ability to pivot on its tracks allows for greater flexibility, enabling operators to navigate around trees, rocks, and other obstacles.
   

Common Applications of FMC Tracked Skidders
FMC tracked skidders are widely used in the forestry sector, but they have applications in other industries as well:

1. Logging Operations: The primary use of FMC tracked skidders is in logging, where they are used to drag logs from the cutting site to roadsides or landings for transport. Their ability to operate in difficult terrain makes them invaluable to logging crews working in forests, hillsides, or swampy areas.
   
2. Land Clearing: When clearing land for construction or agriculture, FMC skidders can be used to remove large stumps and debris, making them a useful tool for large-scale land preparation projects.
   
3. Timber Management: Skidders can be employed in timber management practices such as thinning and selective logging, where precise handling of logs and minimal soil disturbance is required.
   

Common Issues with FMC Tracked Skidders
Like any piece of heavy machinery, FMC tracked skidders are prone to wear and tear. Below are some common issues that operators may encounter during the life cycle of the machine:

1. Track Wear and Tear
   

Over time, the tracks on FMC skidders can experience significant wear, especially when operating in harsh, rocky, or abrasive environments. Worn tracks can compromise the machine’s ability to maintain traction and maneuverability.

• Symptoms: Slipping or reduced pulling power, difficulty maintaining grip on slippery surfaces, visible wear on the track links, or broken track components.
  
• Solutions: Regularly inspect the tracks for wear and damage. Replace worn track links, rollers, and sprockets when necessary. Proper track tension is critical to avoid excess wear. Ensure the tracks are correctly lubricated and maintained.
  

1. Hydraulic System Failure
   

The hydraulic system on a skidder is responsible for powering critical components such as the winch and steering mechanism. Over time, hydraulic components can suffer from leaks, poor performance, or complete failure.

• Symptoms: Slow response from the winch, erratic movement of the boom, loss of steering control, or visible hydraulic fluid leaks.
  
• Solutions: Check for fluid levels and inspect hydraulic hoses for cracks or leaks. If necessary, replace damaged hoses and top up the hydraulic fluid. Ensure regular maintenance on the hydraulic pump and filters to maintain efficiency.
  

1. Winch Problems
   

The winch is an essential feature of FMC skidders, used for pulling logs and other heavy materials. Over time, winches can experience issues with cable wear, motor failure, or mechanical problems.

• Symptoms: Winch failure to engage, loss of pulling power, unusual noises when operating the winch, or the winch cable slipping.
  
• Solutions: Inspect the winch cable for fraying or damage. Replace the cable if it is worn. Check the winch motor for any signs of wear or overheating and clean or replace components as needed. Ensure proper lubrication of the winch drum and gears.
  

1. Engine Issues
   

Like any heavy machinery, FMC skidders rely on their engines to provide the power necessary for operation. Engine problems can occur due to poor maintenance, fuel contamination, or engine component failures.

• Symptoms: Engine overheating, difficulty starting, decreased power output, or unusual noises from the engine.
  
• Solutions: Regularly inspect the engine for leaks, contamination, and wear. Change the oil and replace the fuel filters as part of routine maintenance. Ensure the cooling system is clean and functioning correctly to avoid overheating. If the engine continues to show signs of poor performance, consider a full engine inspection or rebuild.
  

1. Brake and Steering Problems
   

The braking and steering systems of tracked skidders are often subject to heavy stress. Hydraulic steering systems can develop leaks, and mechanical brakes may wear down over time.

• Symptoms: Difficulty steering, inconsistent braking performance, or unresponsive brakes.
  
• Solutions: Inspect the hydraulic steering system for leaks or malfunctions and address any issues promptly. Check the brake pads or bands and replace them if they are worn. Ensure that the steering and brake fluid levels are adequate.
  

Preventive Maintenance for FMC Tracked Skidders
Preventive maintenance is crucial to ensuring the long-term performance and reliability of FMC tracked skidders. Operators should follow the manufacturer’s maintenance schedule, but some general practices include:

1. Regular Inspection of Tracks: Ensure proper track tension and look for any signs of wear or damage to the track links, rollers, and sprockets.
   
2. Hydraulic System Maintenance: Check hydraulic fluid levels, inspect hoses for leaks, and clean or replace filters regularly.
   
3. Engine and Fuel System: Perform regular oil changes, inspect fuel filters, and clean the air filters to keep the engine running smoothly.
   
4. Winch and Mechanical Systems: Regularly lubricate the winch and check for cable wear. Inspect all mechanical systems to ensure they are functioning as intended.
   
5. Cleaning and Lubrication: Keep the skidder clean, especially the undercarriage, to prevent dirt and debris from causing wear. Apply lubrication to moving parts as required.
   

Conclusion
FMC tracked skidders are powerful, reliable machines designed for use in tough terrain, making them invaluable for logging, land clearing, and timber management. Regular maintenance is crucial to prevent common issues such as track wear, hydraulic system failures, winch problems, and engine troubles. By addressing these issues early and adhering to a preventive maintenance schedule, operators can ensure that their FMC skidders continue to perform at their best for many years to come. Proper troubleshooting, timely repairs, and thorough inspections are key to extending the life of these heavy-duty machines.