Top 5 Scissor Lift Problems and How to Fix Them
Scissor lift problems can lead to equipment downtime, project delays, and serious safety concerns. Common issues include starting failures, hydraulic lift problems, steering difficulties, electrical malfunctions, and unexpected shutdowns.
Understanding these five common scissor lift problems can help operators recognize warning signs, perform basic inspections, and determine when professional equipment service is needed.
1. Scissor Lift Won’t Start
Symptoms:
No response when ignition is turned on
Clicking noise or complete silence
Dashboard lights not functioning
Common Causes:
Dead or weak battery
Loose wiring or disconnected cables
Faulty starter or ignition switch
Fix:
Check and recharge the battery or replace it if necessary
Inspect wiring for damage or disconnection
Test the ignition switch or call a technician if the starter is defective
Pro Tip: Always check the emergency stop button—operators often forget to release it before starting.
2. Lift Platform Doesn’t Raise or Lower Properly
Symptoms:
Jerky or uneven movement
Stuck platform
Extremely slow lifting or lowering
Common Causes:
Low hydraulic fluid levels
Hydraulic leaks or damaged hoses
Blocked lift cylinder or malfunctioning control valve
Fix:
Refill or replace hydraulic fluid according to manufacturer specifications
Inspect hoses and cylinders for leaks or kinks
Have a technician service any malfunctioning valves or cylinders
Read more about:
👉 Best Practices for Using Scissor Lifts Safely on Job Sites
3. Steering and Maneuverability Issues
Symptoms:
Scissor lift is hard to turn or veers unexpectedly
One wheel doesn’t respond
Unresponsive controls while navigating
Common Causes:
Hydraulic steering failure
Faulty steering control module
Low tire pressure or damaged tires
Fix:
Check hydraulic steering fluid and refill as needed
Test control systems and replace faulty modules
Inspect tires and repair or replace as necessary
Safety Tip: Always inspect tires before operating the lift, especially in rough terrain or high-traffic areas.
4. Electrical System Failures
Symptoms:
Warning lights remain on
Malfunctioning controls or joystick
Intermittent power or total shutdown
Common Causes:
Blown fuses
Loose or corroded electrical connections
Defective control board
Fix:
Replace any blown fuses and reset breakers
Clean and secure all wiring and terminal connections
If problems persist, consult a certified technician for further diagnostics
5. Frequent Emergency Stops or Unexpected Shutdowns
Symptoms:
Lift halts mid-operation
Emergency stop button activates without being pressed
Frequent fault codes
Common Causes:
Overloaded platform
Sensitive safety sensors
Faulty limit switches or control boards
Fix:
Confirm the lift is within its rated load capacity
Calibrate or replace faulty sensors
Replace damaged limit switches
Preventive Maintenance Tips
To reduce downtime and avoid costly repairs, establish a routine inspection and maintenance schedule that includes:
Daily pre-operation inspections
Weekly fluid checks and control tests
Monthly battery inspections and tire pressure reviews
Annual full-service maintenance by a certified technician
Regular maintenance not only reduces equipment failures but also ensures OSHA compliance and operator safety.
Man Lift’s Commitment to Reliable Equipment
Reliable Scissor Lifts from Man Lift USA
Man Lift USA manufactures reliable scissor lifts and custom aerial work platforms for demanding industrial applications. Our equipment is engineered with safety, durability, and productivity in mind.
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Recognizing common scissor lift problems and following a preventive maintenance schedule can help reduce downtime and improve workplace safety. Always follow manufacturer instructions and applicable OSHA requirements, and have qualified personnel address equipment malfunctions.
