JLG 35E Boom Lift Code 10 Troubleshooting and Solutions

[MikePhua]

JLG Industries is a renowned manufacturer of aerial work platforms, including boom lifts, scissor lifts, and telehandlers. Their machines are designed to provide elevated access to hard-to-reach places for a variety of industries such as construction, maintenance, and warehouse management. One common issue that can arise with these machines is the appearance of error codes, such as "Code 10," which can affect the performance of the lift. This article delves into what "Code 10" means, how to troubleshoot it, and potential solutions to ensure that the JLG 35E boom lift operates smoothly and efficiently.
Understanding JLG 35E Boom Lift and Code 10
The JLG 35E boom lift is a versatile machine that offers an elevated platform to safely work at heights. It features electric-powered motors, making it ideal for indoor or environmentally conscious operations where emissions and noise are concerns. The machine's key components include the mast, the boom, and the control system, which allows the operator to move the lift to the required height and position.
However, as with any complex machine, the JLG 35E is not immune to faults. When a malfunction occurs, the system often displays an error code to alert the operator or technician. One such error is "Code 10," which typically refers to an issue with the hydraulic system or the electrical components controlling it.
Possible Causes of Code 10
Code 10 in the JLG 35E boom lift can stem from various underlying issues, particularly those related to the electrical and hydraulic systems. These systems work closely together to ensure that the lift operates correctly, so any disruption in one can affect the other. Here are some of the common causes of Code 10:

1. Hydraulic Pressure Loss: One of the most frequent causes of Code 10 is a drop in hydraulic pressure, which may occur if there is a leak in the hydraulic system, a malfunctioning valve, or an issue with the pump. The hydraulic system is essential for powering the lift and extending the boom, so any issue here can cause the machine to malfunction.
   
2. Electrical Faults: Since the JLG 35E is electric-powered, issues with the machine’s electrical components can trigger Code 10. These could involve faulty wiring, corroded connections, damaged sensors, or malfunctioning relays that communicate between the control panel and the hydraulic system.
   
3. Battery Problems: The lift is powered by onboard batteries, and if these are not charged properly, or if there is a problem with the battery connections, it can cause issues with the machine’s electrical components. Low voltage or inconsistent battery charge can lead to intermittent operation and Code 10 errors.
   
4. Control System Failure: The machine’s control panel is the brain of the operation, sending signals to the hydraulic system to control boom movement. If there is a problem with the control panel or the associated wiring and sensors, it can trigger error codes.
   
5. Sensor Issues: The JLG 35E uses various sensors to monitor and control movement. A malfunctioning sensor, such as a pressure sensor or position sensor, can mislead the control system into thinking there is a larger problem, causing the lift to display Code 10.
   

Troubleshooting Code 10 on the JLG 35E Boom Lift
If the JLG 35E boom lift displays Code 10, it is essential to troubleshoot the issue carefully to avoid further damage. Follow these steps to identify and resolve the issue:
1. Inspect the Hydraulic System

• Check for leaks: Start by inspecting the hydraulic hoses and connections for any visible signs of leakage. A small crack or loose fitting can cause a significant drop in pressure.
  
• Test hydraulic pressure: Use a pressure gauge to test the hydraulic pressure in various parts of the system. If the pressure is lower than recommended specifications, the pump or valve may need repair or replacement.
  
• Inspect the hydraulic fluid: Ensure that the hydraulic fluid is at the correct level and is clean. Contaminated fluid can damage the system’s components and cause operational issues.
  

2. Examine the Electrical Components

• Check the battery: Inspect the battery for signs of wear, corrosion, or loose connections. A weak or poorly maintained battery can cause electrical issues and result in an error code. If the battery voltage is low, charge it or replace it if necessary.
  
• Inspect the wiring: Check for any frayed or damaged wires that could cause a short circuit. Ensure all connections are tight and free from corrosion.
  
• Test relays and fuses: A blown fuse or malfunctioning relay could be the source of the issue. Test and replace any faulty fuses or relays as necessary.
  

3. Test the Control System

• Reset the control panel: Sometimes, resetting the machine’s control panel can clear error codes caused by temporary glitches. Refer to the machine’s manual for instructions on how to reset the system.
  
• Verify sensor operation: Use diagnostic tools to check if all sensors are functioning correctly. If a sensor is malfunctioning, it may be necessary to replace it.
  

4. Consult the Manual and Service Guides

• If troubleshooting the above components does not resolve the issue, consult the JLG 35E’s service manual for more detailed diagnostics. The manual often includes a troubleshooting section that provides more specific information on error codes and solutions.
  

Preventative Maintenance for JLG 35E Boom Lifts
To reduce the likelihood of encountering Code 10 or similar issues, regular maintenance is crucial. Implementing a preventative maintenance program can help extend the lifespan of your JLG 35E and keep it operating at peak performance.

• Regularly check hydraulic fluid levels: Ensure that the hydraulic fluid is clean and at the appropriate level.
  
• Clean electrical connections: Keep battery terminals and electrical connections clean to prevent corrosion.
  
• Inspect for leaks: Check hoses and fittings for any signs of wear or leaks.
  
• Service the lift annually: Schedule annual maintenance with a qualified technician to thoroughly inspect the hydraulic and electrical systems.
  

Conclusion
The JLG 35E boom lift is a powerful and versatile machine used in a wide range of applications. However, when encountering an error code such as Code 10, it is essential to approach the issue systematically. By inspecting the hydraulic, electrical, and control systems, you can identify and address the problem, ensuring that the lift operates smoothly and safely. Regular maintenance can also help prevent future issues and keep the machine in good working condition for years to come.