On this page
Asset Type
Manufacturer
Model
What This Guide Helps With
Identifies causes of table drifting or failing to hold position, including hydraulic, lock, load, and control issues before assuming internal failure.
Step-by-Step Troubleshooting
Ensure Patient Safety
- Confirm the table is not actively supporting a patient.
- If in use, transfer the patient to another stable surface before proceeding.
Verify Table Lock Status
- Ensure the table base is fully locked. A partially engaged or unlocked base can allow unintended movement or drift.
- Expected Outcome: Table remains stable when locked.
Check Floor Conditions
- Inspect the floor for uneven surfaces, debris, or fluid contamination. An unstable surface can mimic drift or prevent proper locking.
- Expected Outcome: Table sits firmly without rocking or shifting.
Confirm Weight Limits and Distribution
- Verify the patient weight and positioning are within manufacturer limits. Uneven or excessive load can cause hydraulic drift or inability to hold position.
- Expected Outcome: Properly distributed load improves stability.
Inspect for External Obstructions
- Check for cables, accessories, or attachments interfering with movement or locking mechanisms. Accessories improperly mounted can affect balance or movement resistance.
- Expected Outcome: No obstruction impacting table positioning.
Operate Table Through Full Range of Motion
- Using the hand control, move the table through several positions. Observe for slow settling or inability to maintain position after movement stops.
- Expected Outcome: Table holds position without gradual movement.
Check for Audible Hydraulic Activity or Creep
- Listen for continued motor or hydraulic sounds after movement stops. This may indicate internal pressure loss or valve issues.
- Expected Outcome: No continued sound once movement stops.
Inspect for Visible Fluid Leaks
- Check around the base and column for signs of hydraulic fluid. Leaks can lead to pressure loss and drifting.
- Expected Outcome: No visible fluid or residue.
Cycle Power to Reset Control System
- Power the table off, wait 30 seconds, and power back on. This can reset control logic that may affect holding functions.
- Expected Outcome: Normal holding function restored if control-related.
Test with Alternate Control (if available)
- If equipped, try a secondary control (IR remote or backup pendant). Helps rule out unintended input or control malfunction.
- Expected Outcome: Consistent behavior across controls confirms non-control issue.
If the Problem Persists
If drift or inability to hold position continues after completing these steps, common external causes have been ruled out. The issue is likely internal, such as hydraulic valve failure or actuator issues.
Remove the table from service, label it Out of Service, and send for repair or bench evaluation.
Knowing when to stop is proper troubleshooting and protects patient safety.
Clinical Use Tip
Never troubleshoot drift while a patient is on the table. Even slight movement can compromise positioning, surgical accuracy, or patient safety. Always transfer first.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Surgical staff reported table drifting downward during procedures."
Cause
What was observed during troubleshooting.
Example:
"No external issues found; suspected internal hydraulic pressure loss."
Resolution
What action was taken.
Example:
"Removed from service and sent for vendor repair."
Helpful Details to Include (If Known)
- Table lock status verified
- Floor condition checked
- Weight/load within limits
- Movement test results (holding vs drifting)
- Presence of hydraulic noise
- Visible fluid leaks
- Controls tested
- Final device status (removed from service or operational)
Final Thought
Table drift is a critical safety issue that requires a structured, external-first approach. Once load, environment, and controls are ruled out, escalation is appropriate. Proper documentation ensures clear communication and supports timely repair.
That is successful troubleshooting.