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What This Guide Helps With
This guide assists Clinical Engineering in troubleshooting a STERIS AMSCO 4085 surgical table when the hand control or pendant does not operate the table. Common symptoms include:
- No response when buttons are pressed
- Indicator lights on the pendant not illuminating
- Table powers on normally, but no movement occurs via controls
Focus is on external, user-accessible checks before considering internal or bench repair.
Step-by-Step Troubleshooting
Verify Table Power
- Confirm the table is plugged into a live outlet.
- Check main power switch and indicator lights.
Why: A non-powered table will prevent pendant operation, but may appear like a pendant failure.
Inspect Pendant Connection
- Ensure the pendant cable is fully seated into the table’s connector.
- Look for bent pins, debris, or damage on the connector.
Why: Loose or damaged connectors are a common cause of unresponsive pendants.
Check Pendant Functionality
- Examine indicator lights or display on the pendant.
- If lights fail to illuminate, try a known working pendant (if available).
Why: Determines whether the problem is the pendant itself or the table’s interface.
Examine Pendant Cable
- Inspect the cable for kinks, cuts, or exposed wires.
- Gently flex the cable while pressing buttons to see if intermittent response occurs.
Why: Internal wire breaks often prevent pendant operation even if the table is powered.
Test Table Movement Without Pendant (if applicable)
- Some tables allow limited manual or foot control overrides.
- Confirm that the table responds to any alternate control method.
Why: Helps isolate whether the issue is table-side electronics or only the pendant.
Reset Table Electronics
- Power down the table completely for at least 30 seconds, then restart.
Why: Some software or electronic glitches may prevent the pendant from communicating.
If the Problem Persists
All external checks indicate the table powers on and connectors are intact. The pendant or table interface is likely faulty internally.
- Remove the table from service.
- Label as Out of Service.
- Send the pendant or table for repair/bench evaluation.
Do not attempt internal electronics repair on the floor; patient safety must be prioritized.
Clinical Use Tip
- Never attempt troubleshooting while a patient is on the table.
- Move the patient to another operational table first.
- Ensure hands and cords are dry and free of contamination to avoid electrical hazards.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
“Pendant does not operate table; buttons unresponsive and no indicator lights.”
Cause
What was observed during troubleshooting.
Example:
“Pendant cable seated properly, table powered, but pendant fails to communicate with table electronics.”
Resolution
What action was taken.
Example:
“Removed table from service, labeled Out of Service, and sent pendant for bench evaluation/repair.”
Helpful Details to Include
- Outlet tested and confirmed live
- Table powered on normally
- Pendant connector inspected
- No visible damage to table-side electronics
- Table movement tested via alternate methods (if applicable)
- Final device status: Out of Service
Final Thought
Proper troubleshooting ensures patient safety and minimizes unnecessary risk. Start with logical, external checks, and escalate appropriately when devices or accessories fail. Document thoroughly using the CCR method to support repair and follow-up.
That is successful troubleshooting.