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John Deere 955L Troubleshooting and Maintenance
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The John Deere 955L is a well-regarded model of compact tractors designed for diverse agricultural and light construction tasks. Known for its reliability, power, and versatility, the 955L combines advanced engineering with robust performance capabilities. However, like any machine, it is subject to maintenance issues from time to time, often requiring troubleshooting and careful attention to ensure it runs smoothly. This article delves into common issues faced by operators of the John Deere 955L, providing tips, solutions, and maintenance advice to keep the machine running at its best.
Overview of the John Deere 955L
The John Deere 955L is part of the company's compact utility tractor series, designed for small to medium-sized farms, landscaping, and construction tasks. Equipped with a liquid-cooled, 3-cylinder diesel engine, the 955L offers impressive torque and efficiency. Its compact size allows it to maneuver easily in tight spaces, while its heavy-duty construction ensures that it can handle demanding jobs.
Key Features of the John Deere 955L:
  • Engine: The 955L is powered by a 30-horsepower, 3-cylinder diesel engine, delivering solid performance for tasks such as plowing, hauling, and digging.
  • Transmission: The tractor typically comes with a hydrostatic transmission, providing smooth, variable-speed control. This makes it easy to operate and suitable for various tasks requiring different speeds.
  • Hydraulic System: Known for its strong hydraulic system, the 955L can power a variety of attachments, such as loaders and backhoes, making it a versatile tool for different industries.
  • Maneuverability: Despite its heavy-duty build, the 955L is small enough to navigate narrow areas, making it ideal for both large open spaces and more confined environments.
Common Issues with the John Deere 955L
Like any piece of heavy machinery, the John Deere 955L can experience problems during regular operation. Below are some common issues faced by users, with tips for troubleshooting and resolving them.
1. Engine Cranks but Doesn’t Start
One of the most common problems with the 955L is when the engine cranks but fails to start. This can be caused by a variety of factors.
Potential Causes and Solutions:
  • Fuel Issues: Ensure that there is sufficient fuel and that the fuel system is not clogged. A clogged fuel filter or a problem with the fuel lines can restrict fuel flow, preventing the engine from starting.
    • Solution: Replace the fuel filter and inspect the fuel lines for cracks or clogs. Bleed the fuel system if necessary to remove air pockets.
  • Battery and Electrical System: A weak or dead battery can prevent the engine from starting. Additionally, faulty connections or worn-out electrical components may cause starting issues.
    • Solution: Check the battery voltage with a multimeter. Clean any corroded battery terminals and ensure all electrical connections are secure.
  • Glow Plugs: If the tractor has been in cold weather conditions, the glow plugs may be malfunctioning, causing starting problems.
    • Solution: Test the glow plugs and replace any faulty ones.
2. Hydraulic System Issues
The hydraulic system in the John Deere 955L plays a critical role in powering attachments like front loaders and backhoes. Common issues with the hydraulic system include weak or erratic performance, fluid leaks, and total failure.
Potential Causes and Solutions:
  • Low Hydraulic Fluid: One of the primary causes of poor hydraulic performance is low hydraulic fluid levels.
    • Solution: Regularly check and top off the hydraulic fluid as needed. Refer to the owner's manual to determine the correct fluid type and capacity.
  • Hydraulic Filter Blockage: The hydraulic filter can become clogged over time, reducing the system's effectiveness.
    • Solution: Replace the hydraulic filter and flush the system if necessary.
  • Leaks: Hydraulic fluid leaks can occur due to worn-out seals or cracked hoses. If there are visible puddles of fluid under the tractor, this is likely the issue.
    • Solution: Inspect the hydraulic system for leaks. Replace worn seals and hoses promptly to prevent further damage.
3. Steering Problems
Another common issue faced by John Deere 955L owners is steering problems, such as difficulty turning the wheel or erratic steering behavior.
Potential Causes and Solutions:
  • Low Steering Fluid: Low fluid levels in the steering system can result in hard steering or unresponsiveness.
    • Solution: Check the steering fluid levels and top off if necessary. If the fluid is low, look for leaks and repair them accordingly.
  • Damaged Steering Components: Worn or damaged steering components, such as tie rods or the steering pump, can cause steering issues.
    • Solution: Inspect the steering system components for wear and tear. Replace any damaged parts to restore proper functionality.
4. PTO (Power Take-Off) Malfunctions
The PTO on the John Deere 955L is responsible for driving various implements, such as mowers or tillers. If the PTO is not engaging or not providing enough power, it could be due to several factors.
Potential Causes and Solutions:
  • Clutch Problems: The PTO clutch may be worn out or malfunctioning, preventing proper engagement.
    • Solution: Inspect and replace the PTO clutch if necessary. Ensure that the clutch is properly adjusted.
  • PTO Shaft Damage: The PTO shaft itself may become damaged or misaligned, leading to power transfer issues.
    • Solution: Check the PTO shaft for damage or misalignment. Repair or replace the shaft as needed.
Routine Maintenance for the John Deere 955L
Regular maintenance is essential to keep the John Deere 955L running efficiently. Below are key maintenance tasks that should be performed regularly:
1. Oil and Filter Changes
  • Engine Oil: Change the engine oil and replace the oil filter every 100-150 hours of operation to ensure smooth engine performance.
    • Tip: Use high-quality engine oil recommended by John Deere for optimal performance and engine protection.
  • Hydraulic Fluid and Filter: Change the hydraulic fluid and filter every 500 hours to maintain optimal hydraulic performance.
    • Tip: Use the correct hydraulic fluid to avoid damage to the hydraulic system.
2. Air Filter and Fuel System Maintenance
  • Air Filter: Clean or replace the air filter every 100 hours, depending on operating conditions. A clogged air filter can cause engine performance issues.
  • Fuel System: Replace the fuel filter at least every 200 hours or more frequently in dusty conditions. Clean the fuel lines and tank periodically to ensure smooth fuel flow.
3. Tire Maintenance
  • Check tire pressure regularly to ensure proper traction and prevent tire wear. Over- or under-inflated tires can lead to poor performance and premature wear.
4. Grease and Lubrication
  • Grease the tractor’s moving parts, including the loader arms, hinges, and linkages, every 50 hours to prevent wear and ensure smooth operation.
5. Battery and Electrical System
  • Check the battery and electrical system at regular intervals. Clean terminals and check the charging system to avoid electrical failures.
Conclusion
The John Deere 955L is a durable and versatile compact tractor, ideal for a variety of tasks on farms, construction sites, and landscaping projects. Troubleshooting common issues such as engine problems, hydraulic system failures, and steering difficulties requires a systematic approach. Regular maintenance is crucial for ensuring long-term performance, reducing downtime, and avoiding costly repairs. By following these maintenance guidelines and addressing problems promptly, operators can extend the life of their John Deere 955L and keep it running smoothly for years to come.
Investing time in understanding your equipment and conducting regular maintenance not only enhances the performance of the John Deere 955L but also contributes to overall operational efficiency.
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