Maintenance of scissor lifts is crucial for ensuring safe operation and extending their lifespan. Scientific maintenance not only reduces downtime but also effectively prevents accidents. The following are key points summarized from industry standards and practical experience:
Daily Inspection (Before Each Use)
Battery Power: Ensure sufficient power to avoid low-voltage starting.
Tire Pressure: Check for normal pressure to prevent deviation.
Emergency Descent Function: Test for functionality to handle sudden power outages.
Visual Inspection: Check for structural deformation, cracks, and hydraulic line leaks.
Critical System Maintenance
Hydraulic System
Regularly check oil quality. If the oil becomes dark, sticky, or contains impurities, replace it with 32# hydraulic oil immediately.
Oil Level Standard: When the platform is at its highest point, the oil level should be 40-50 mm above the bottom of the tank.
Check cylinder sealing to prevent internal leakage that could cause platform tilting.
Mechanical Structure
Regularly tighten bolts, especially at scissor arm hinge points and rollers.
Check the lubrication of scissor arm welds, pins, and sliders; insufficient lubrication can cause abnormal noise or jamming.
Electrical and Control Systems
Keep the control box dry to prevent moisture intrusion.
Check that wiring connections are secure and that the brush contact area is no less than 50%.
Different brands of equipment may display fault codes (e.g., "68" indicates a low voltage error); refer to the instruction manual for troubleshooting.
Safety Devices
Regularly test the reliability of limit switches, overload protection, and fall arrestors.
The emergency descent device must be tested monthly to ensure manual operation during power outages.
