JLG 60G: Steering Hydraulics Overview

[MikePhua]

The JLG 60G is a renowned model in the JLG lineup of aerial work platforms, specifically known for its versatility in a variety of industrial applications. Its performance depends heavily on the efficient operation of its hydraulic system, which controls the steering and lifting functions of the machine. One of the crucial components that can impact the functionality of the JLG 60G is the steering hydraulics system, which, when malfunctioning, can cause operational delays and even safety hazards.
The Importance of Steering Hydraulics in Aerial Work Platforms
The steering system in any machine is vital for maneuverability, and in the case of aerial lifts like the JLG 60G, it's even more critical. These machines are designed to lift operators to significant heights, requiring precise and reliable steering capabilities for safety and efficiency. A malfunction in the steering hydraulics system can compromise the machine’s ability to perform tasks, especially when navigating tight spaces or dealing with uneven terrain.
The JLG 60G, like many modern aerial lifts, relies on hydraulic steering, which uses fluid pressure to actuate steering cylinders and provide smooth and precise movements. The hydraulic fluid used in these systems needs to be maintained at optimal levels, and the components need to be inspected regularly for leaks, wear, and other potential issues.
Common Issues with Steering Hydraulics on the JLG 60G

1. Low Hydraulic Fluid Levels: One of the most common causes of steering issues in the JLG 60G is low hydraulic fluid levels. When hydraulic fluid levels drop below the required threshold, it can cause the steering system to become sluggish or unresponsive. This issue can occur due to fluid leaks, improper maintenance, or prolonged use without sufficient topping off of the hydraulic reservoir.
   • Solution: Regularly check the hydraulic fluid levels, and top up or replace the fluid as necessary. Ensure that the system is sealed properly to avoid leaks, and inspect hoses and connections for signs of wear or damage.
     
2. Hydraulic Pump Failures: Another potential issue with the steering hydraulics is the failure of the hydraulic pump. The pump is responsible for generating the fluid pressure that drives the steering system. A worn or malfunctioning pump may not provide sufficient pressure, causing the steering to become stiff or nonfunctional.
   • Solution: If the steering becomes difficult or fails completely, it’s important to inspect the hydraulic pump for wear or damage. Replacing the pump or repairing any damage is essential for restoring functionality to the system.
     
3. Faulty Steering Cylinders: The steering cylinders in the JLG 60G are responsible for actuating the movement of the wheels. Over time, seals within these cylinders can wear out, causing hydraulic fluid to leak, which leads to decreased steering efficiency. Leaks from the cylinders can also create pressure imbalances, further affecting the performance of the steering system.
   • Solution: Inspect the steering cylinders for leaks, and replace seals or the entire cylinder if needed. Ensure that the hydraulic lines connected to the cylinders are not blocked or damaged.
     
4. Air in the Hydraulic System: Air trapped within the hydraulic lines can cause erratic steering behavior. When air is introduced into the system, it can cause the hydraulic fluid to foam, leading to a loss of steering responsiveness. This issue can occur if the hydraulic fluid is changed or topped off incorrectly or if there is a leak in the system.
   • Solution: Bleeding the hydraulic system to remove trapped air is crucial for restoring proper steering performance. Follow the manufacturer’s guidelines for purging air from the system.
     
5. Clogged Hydraulic Filters: Over time, debris can accumulate in the hydraulic filters, obstructing fluid flow and causing reduced pressure within the steering system. A clogged filter can significantly impact the performance of the hydraulic steering, leading to sluggish or erratic movements.
   • Solution: Replace or clean the hydraulic filters regularly as part of routine maintenance. Keeping the filters clean helps ensure that the fluid flows freely and the system operates at peak efficiency.
     

Maintenance Best Practices for Steering Hydraulics
Maintaining the steering hydraulics on a JLG 60G is essential to ensure its continued performance and safety. Here are some key maintenance practices to follow:

1. Regular Fluid Checks: Ensure that the hydraulic fluid levels are checked regularly and topped off as needed. Low fluid levels can cause a variety of issues, from sluggish steering to complete system failure.
   
2. Hydraulic Fluid Changes: Change the hydraulic fluid as recommended by the manufacturer to ensure it stays clean and free of contaminants. This also involves replacing the hydraulic filter to prevent any blockages.
   
3. Inspecting the Pump and Cylinders: Regularly inspect the hydraulic pump, steering cylinders, and all associated components for wear and leaks. Any signs of damage or degradation should be addressed promptly to prevent more severe issues from developing.
   
4. Cleaning and Bleeding the System: Periodically clean the hydraulic system to ensure that there is no build-up of debris that could clog the filters or cause other components to malfunction. Also, periodically bleed the system to remove any air that may have entered.
   
5. Proper Training for Operators: Ensuring that operators are well-trained in using the JLG 60G and its hydraulic steering system is essential. Operators should be aware of the machine's limitations and the importance of operating it within its specified parameters to avoid excessive strain on the hydraulics.
   

Conclusion
The JLG 60G is a highly reliable aerial lift, widely used in industries ranging from construction to maintenance. However, like any piece of heavy equipment, it is subject to wear and tear, and one of the most critical systems to monitor is the hydraulic steering system. By staying proactive with maintenance, addressing issues promptly, and ensuring that operators are well-trained, owners can extend the life of their JLG 60G and avoid costly repairs.
Ultimately, maintaining the steering hydraulics ensures not only the performance of the JLG 60G but also the safety of the operator and the job site. Regular inspection, fluid checks, and proper care of the hydraulic system will keep the machine running smoothly for years to come, ensuring that operators can continue to perform tasks efficiently and safely.