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Manufacturer
Model
What This Guide Helps With
Table not raising/lowering or intermittent hi-lo movement due to power, hand control, or connection-related external issues.
Step-by-Step Troubleshooting
Ensure Patient Safety First
- Remove table from patient use before troubleshooting.
- Expected: Patient safely relocated to another table.
- Why it matters: Unexpected table movement or failure can cause injury.
Verify the Reported Issue
- Operate the hi-lo function using the hand control or foot control.
- Expected: No movement, delayed response, or intermittent operation.
- Why it matters: Confirms a true actuator issue vs user operation error.
Check Power Source
- Ensure the table is plugged into a working outlet and power cord is intact. Test outlet with another device.
- Expected: Reliable power present.
- Why it matters: Loss of power is the most common cause of no movement.
- If no power → restore power and retest.
Inspect Power Cord and Strain Relief
- Check for cuts, fraying, or loose connections at the plug and table entry point.
- Expected: Cord intact with no damage.
- Why it matters: Intermittent power can mimic actuator failure.
- If damaged → remove from service.
Check Hand Control / Foot Control Function
- Inspect control for stuck buttons, physical damage, or inconsistent response. Try all movement buttons.
- Expected: Buttons respond consistently.
- Why it matters: Faulty controls are a common cause of intermittent movement.
- If available → swap with a known good control and retest.
Inspect Control Cable Connections
- Verify that the hand/foot control cable is securely connected to the table with no bent pins or loose fit.
- Expected: Firm, secure connection.
- Why it matters: Loose or damaged connectors interrupt control signals.
- If connection is loose or damaged → reseat or remove from service.
Observe for Actuator Noise or Attempted Movement
- Activate hi-lo and listen for motor noise or slight movement.
- Expected: Motor sound or movement attempt.
- Why it matters:
- Noise present → power/control reaching actuator
- No noise → possible control or power issue
Check for Mechanical Obstruction
- Inspect under the table for items blocking movement (cables, debris, storage items).
- Expected: Clear path for full actuator travel.
- Why it matters: Physical obstruction can stop or strain actuator movement.
- If obstruction found → remove and retest.
Inspect Table Load and Weight Distribution
- Ensure table is not overloaded or unevenly loaded.
- Expected: Within normal operating weight and balanced.
- Why it matters: Excess load can prevent actuator movement or cause intermittent operation.
- If overloaded → reduce load and retest.
Cycle Power to Reset System
- Unplug the table for 30 seconds, then reconnect and retest.
- Expected: Normal function restored if control fault was temporary.
- Why it matters: Resets control electronics and clears minor faults.
If the Problem Persists
All common external causes have been ruled out. The issue is likely internal (actuator failure, internal wiring, or control board fault).
Remove the table from service, label Out of Service, and send for repair or bench evaluation.
Clinical Use Tip
Do not troubleshoot hi-lo issues with a patient on the table. Always transfer the patient first to prevent injury from unexpected movement.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Exam table not raising or lowering; intermittent response from hand control."
Cause
What was observed during troubleshooting.
Example:
"Hi-lo actuator unresponsive despite confirmed power and functional control."
Resolution
What action was taken.
Example:
"Removed from service and sent to Clinical Engineering for actuator evaluation and repair."
Helpful Details to Include (If Known)
- Outlet tested and verified
- Power cord condition
- Control type used (hand or foot)
- Control swapped (yes/no)
- Audible actuator noise present or absent
- Obstruction found (yes/no)
- Load condition of table
- Final device status (in service / out of service)
Final Thought
Start with power and controls before suspecting actuator failure. Most hi-lo issues are external and easily resolved. Knowing when to escalate protects both patients and equipment. Proper documentation supports efficient repair and tracking.
That is successful troubleshooting.