Fixing Stiff Control Levers on the Bobcat 753

[MikePhua]

The Bobcat 753 skid steer loader is a reliable and widely used machine for construction and agricultural tasks. However, over time, some users have reported that the control levers have become stiff and difficult to operate. This can affect the machine's flexibility and overall work efficiency. In this article, we’ll explore the potential causes of this issue and offer solutions to resolve it.
Overview of the Problem
Users have noticed that the control levers on their Bobcat 753 no longer operate smoothly, often feeling like they are stuck or unusually stiff. This issue can significantly impact work efficiency and even precision in machine operation. As control levers are central to machine handling, addressing this issue promptly is essential.
Common Causes

1. Worn Control Lever Linkage Parts
   The internal parts of the control lever, such as linkages and chains, may wear down or deform over time. When these parts are worn, they can increase friction, causing the levers to become stiff or even stick during operation.
   
2. Hydraulic System Issues
   The control lever system of the Bobcat 753 depends on hydraulic support. If the hydraulic system has oil leaks or insufficient pressure, it can lead to the stiff operation of the levers.
   
3. Dirt or Corrosion Build-up
   If the control levers and surrounding parts haven’t been cleaned regularly, dirt, dust, or corrosion may build up, affecting smooth movement. This is particularly common in harsh working environments where mud or moisture can enter the mechanical system, causing the levers to jam.
   
4. Hydraulic Fluid Problems
   Dirty or low hydraulic fluid levels can affect the efficiency of the hydraulic system, leading to stiff control levers.
   

Steps to Inspect and Fix the Issue

1. Inspect Control Lever Linkage Parts
   Start by checking the control lever linkages, including rods, chains, and joints, for any wear or looseness. If any parts are damaged or excessively worn, they should be replaced or lubricated.
   
2. Check the Hydraulic System
   Inspect the hydraulic fluid levels and quality, ensuring the fluid is clean and at the proper level. If the fluid is dirty or low, change the hydraulic fluid and check for any oil leaks. Fixing any leaks will help restore proper hydraulic pressure and smooth lever operation.
   
3. Clean Control Lever Components
   Use appropriate tools to clean the control levers and their surrounding components, removing any dirt, debris, or corrosion that could be causing friction or blockage. Regular cleaning helps prevent the issue from recurring.
   
4. Lubricate the System
   Regular lubrication of control lever linkages, chains, and moving parts is essential. Proper lubrication reduces friction, ensuring smooth and easy lever movement during operation.
   
5. Replace Damaged Control Lever Parts
   If the internal control lever parts are severely worn or deformed, they may need to be replaced. Depending on the severity of the issue, replacing the parts with the correct replacements can resolve the stiffness issue.
   

Conclusion
The stiff control lever issue on the Bobcat 753 can be caused by a variety of factors, from worn linkage parts to hydraulic system malfunctions. Regular inspection and maintenance can help prevent this problem and keep the skid steer loader operating smoothly. If the issue persists, it’s advisable to consult with a professional technician for further inspection and repair.