Deere 755C Series 2 Steering Problems: Diagnosis and Solutions

[MikePhua]

The Deere 755C Series 2 is a popular compact loader used across various industries, particularly in construction and agriculture. Known for its reliability, ease of operation, and high performance, the 755C Series 2 faces certain common issues over time. One of the more critical problems that operators may encounter is steering failure or difficulty, which can significantly hinder the machine’s ability to perform basic functions.
This article delves into the common steering problems associated with the Deere 755C Series 2, exploring potential causes, troubleshooting steps, and solutions to restore proper function. By understanding the issues and solutions in depth, operators can save time and money on repairs, ensuring the machine continues to perform efficiently.
History and Overview of the Deere 755C Series 2
The Deere 755C Series 2 is part of Deere's line of skid steer loaders designed for work in tight spaces and challenging terrains. Introduced as part of Deere’s larger equipment offering, this series saw substantial popularity due to its solid build, high hydraulic performance, and compact size. It's particularly favored for tasks that require maneuverability, such as landscaping, light construction, and agricultural operations.
The Deere 755C Series 2 is powered by a diesel engine, which ensures strong performance, while the hydraulic system enables powerful lifting and digging capabilities. However, as with any piece of machinery, the steering system is a critical component for proper function and operation. When problems occur, they can affect the machine's ability to turn, making the loader difficult to control and unsafe to operate.
Importance of Proper Steering in Skid Steer Loaders
Skid steer loaders like the Deere 755C Series 2 are unique in that they utilize a skid-steering system. Instead of a conventional steering wheel, these machines rely on independently operated drive motors in each wheel. When the left and right wheels move at different speeds or in opposite directions, the machine can turn. The ability to steer is fundamental to the loader’s functionality, allowing it to maneuver in tight spaces and handle complex tasks.
Any failure or malfunction in the steering system can lead to a lack of responsiveness, difficulty turning, or a complete inability to steer. This issue can arise from problems in the hydraulic system, the drive motors, or even the steering controls.
Common Steering Problems in the Deere 755C Series 2
Steering issues in the Deere 755C Series 2 typically manifest as sluggish or unresponsive handling, erratic wheel movement, or complete steering failure. Below are some of the most common steering problems and their potential causes.
1. Slow or Unresponsive Steering
One of the most common steering issues is slow or unresponsive steering. In this case, the machine might still steer, but at a much slower rate than expected. Operators may find that the loader struggles to turn, or it might take several attempts to make a full rotation.
Possible Causes:

• Low hydraulic fluid levels: The skid steer’s steering system is powered by hydraulics. If fluid levels are low, the system may not function at full capacity.
  
• Clogged hydraulic filters: Dirty or clogged filters can reduce the flow of hydraulic fluid, leading to weak steering performance.
  
• Hydraulic pump issues: The steering pump itself could be faulty, leading to poor fluid pressure and sluggish steering.
  

Solution:

• Check hydraulic fluid levels: Ensure the fluid is topped off and that it is clean. Replace hydraulic fluid if it's dirty or contaminated.
  
• Inspect filters: Replace the hydraulic filters if they appear clogged or old.
  
• Test the pump: If the hydraulic pump is underperforming, it may need replacement or repair.
  

2. Steering Pulling to One Side
Another common issue is when the skid steer pulls to one side while driving or when turning. This is often caused by an imbalance in the hydraulic pressure between the left and right sides of the machine.
Possible Causes:

• Uneven hydraulic pressure: The hydraulic system might not be supplying equal pressure to both wheels, causing the loader to pull to one side.
  
• Faulty steering motor: A malfunctioning steering motor can cause one side to respond slower than the other, leading to uneven steering.
  

Solution:

• Check hydraulic pressure: Test the hydraulic pressure on both sides of the system to ensure they are balanced. Adjust or replace the pressure relief valve if needed.
  
• Inspect the steering motors: If one steering motor is faulty, it may need to be replaced to ensure even steering.
  

3. Complete Loss of Steering Control
In some cases, the loader may lose all steering ability, rendering it unable to turn at all. This is one of the most critical problems, as it can render the machine inoperable.
Possible Causes:

• Complete hydraulic failure: A total loss of hydraulic fluid or pump failure can lead to a complete loss of steering.
  
• Steering system component failure: If the steering control valve or other components of the system fail, the steering system may cease to function.
  

Solution:

• Perform a complete hydraulic check: Inspect the entire hydraulic system for leaks, damage, or air bubbles in the fluid lines.
  
• Replace steering components: If any steering system components are found to be defective, they should be replaced immediately.
  

4. Jerky or Erratic Steering
Sometimes, the steering may not be smooth and can feel jerky, with the wheels moving unevenly or abruptly. This can be dangerous, especially in situations where fine control is required.
Possible Causes:

• Air in the hydraulic lines: Air trapped in the hydraulic system can cause jerky or uneven steering as the hydraulic fluid does not flow smoothly.
  
• Faulty control valves: If the control valves are malfunctioning, they may fail to regulate the flow of hydraulic fluid properly, causing erratic movements.
  

Solution:

• Bleed the hydraulic system: Bleed any air from the hydraulic system to ensure that the fluid flows smoothly.
  
• Check control valves: Inspect the control valves and replace any that are faulty or damaged.
  

Troubleshooting and Preventive Maintenance
Proper troubleshooting and regular maintenance can help prevent steering problems before they occur. Here are a few tips for maintaining the steering system of the Deere 755C Series 2:

• Regular Hydraulic Fluid Checks: Frequently check the hydraulic fluid levels and condition. If the fluid is low or contaminated, replace it with the recommended type and amount of fluid.
  
• Scheduled Filter Replacements: Change the hydraulic filters according to the manufacturer’s service intervals to ensure proper fluid flow.
  
• Inspect Hydraulic Hoses: Check for leaks, cracks, or wear in the hydraulic hoses, as these can lead to pressure loss or fluid contamination.
  
• Monitor Steering Performance: Pay attention to any changes in steering behavior. If the steering becomes sluggish or unresponsive, perform diagnostics immediately to avoid further damage.
  

Conclusion
The Deere 755C Series 2 is a robust and reliable skid steer loader, but like any heavy equipment, it is subject to wear and tear over time. Steering problems are among the most common issues faced by operators, but most can be addressed with routine maintenance, proper diagnostics, and timely repairs.
By following the troubleshooting steps outlined above, operators can maintain the performance of the 755C Series 2 and extend its service life. Regular inspections and proactive maintenance are key to ensuring that steering and other critical systems continue to operate at peak performance, keeping the loader running smoothly for years to come.