Troubleshooting Drive Issues on the JLG 26MRT Scissor Lift

[MikePhua]

The JLG 26MRT is a versatile rough-terrain scissor lift known for its mobility and reliable lifting capacity in construction and maintenance work. However, operators sometimes face drive system issues that can hamper performance and safety. Understanding common problems and their solutions is essential to keeping this equipment running smoothly.
Common Drive Issues on the 26MRT
Users report a variety of symptoms including:

• Difficulty moving or loss of drive power
  
• Jerky or uneven movement
  
• Strange noises during operation
  
• Intermittent drive function or complete failure
  

These issues not only affect productivity but can also pose safety risks if the lift cannot be controlled precisely.
Potential Causes
Drive problems in the 26MRT often stem from several sources:

• Hydraulic System Failures: Low hydraulic fluid levels, contaminated oil, or failing hydraulic pumps and motors can reduce drive power.
  
• Electrical Problems: Faulty wiring, damaged connectors, or worn drive control modules may disrupt signals controlling the motors.
  
• Mechanical Wear: Components such as wheel motors, gearboxes, or drive chains can wear out over time, leading to loss of smooth power transmission.
  
• Operator Controls: Sometimes issues originate from the joystick or control panel malfunctions, causing erratic drive responses.
  

Diagnostic and Repair Approaches
Technicians typically start with:

• Checking hydraulic fluid levels and quality, replacing filters and oil as needed.
  
• Inspecting electrical connections for corrosion, breaks, or shorts, and testing control modules.
  
• Examining mechanical components for visible damage or excessive wear.
  
• Testing operator controls to ensure proper input signals.
  

Replacing worn parts, repairing wiring, or recalibrating control systems often restores normal drive function.
Maintenance Best Practices
To prevent drive issues, regular maintenance is key:

• Keep hydraulic fluid clean and at recommended levels.
  
• Perform periodic inspections of electrical systems and connectors.
  
• Lubricate mechanical parts and check for wear signs.
  
• Train operators to report early signs of drive irregularities.
  

One experienced user shared that after a thorough hydraulic system flush and replacement of worn wheel motors, their 26MRT drive performance returned to factory specifications, emphasizing the value of proactive maintenance.
Industry and Operational Context
The JLG 26MRT is designed for demanding environments where rough terrain and heavy lifting are routine. As with many aerial work platforms, the drive system combines hydraulic and electronic components that require careful coordination and upkeep.
Conclusion
Drive issues on the JLG 26MRT scissor lift, while potentially complex, can be effectively diagnosed and resolved by focusing on hydraulic, electrical, and mechanical systems. Regular maintenance and attentive operation ensure this robust machine continues to provide safe, efficient mobility for elevated work tasks in challenging conditions.