On this page
Asset Type
Manufacturer
Model
What This Guide Helps With
Addresses unavailable system movement or positioning caused by locks, obstructions, controls, battery state, mechanical interference, or positioning-system faults.
Step-by-Step Troubleshooting
1. Protect the Patient and Prevent Unintended Movement
Do not troubleshoot positioning or powered movement while the system is positioned against a patient, bed, or other equipment.
Move the patient or substitute another verified imaging system when necessary. Secure the GM85 Fit so unexpected movement cannot cause injury or collision.
Expected outcome: The system is safely separated from the patient and surrounding equipment. If movement is unpredictable or unsafe, remove the unit from service immediately.
2. Confirm Which Motion Is Unavailable
Identify whether the complaint involves mobile drive movement, tube-column positioning, arm movement, detector positioning, braking, steering, or another specific positioning function.
Attempt only safe unloaded movement while observing indicators and displayed messages.
Expected outcome: The affected motion is clearly identified and the failure can be reproduced. If all movement operates normally, inspect for an intermittent or environment-related condition before release.
3. Check for Physical Obstructions
Inspect around wheels, casters, column, tube assembly, handles, detector storage areas, cables, bedding, wall fixtures, and nearby equipment.
Remove only external obstructions that can be safely cleared.
Expected outcome: The travel path and movable structures are unobstructed. If removing an obstruction restores normal movement, verify the full safe operating range and stop troubleshooting.
4. Verify Brakes, Locks, and Positioning Controls
Confirm that brakes, mechanical locks, transport locks, or other normal positioning restraints are not engaged when movement is expected.
Check that operator controls return normally and are not physically stuck or damaged.
Expected outcome: Required locks and brakes respond normally and movement becomes available when properly released. If motion returns, complete functional verification.
5. Verify System Power and Battery State
Confirm the system is fully powered and not in a shutdown, low-power, charging-only, or fault condition that limits movement.
If powered movement depends on battery operation, verify adequate charge indication and compare behavior under verified AC or charged conditions when appropriate.
Expected outcome: The system has sufficient power for normal movement. If normal movement returns after restoring an appropriate power state, troubleshooting can stop after verification.
6. Inspect Handles and Drive Controls
For powered transport functions, inspect accessible drive handles, switches, sensors, or controls for contamination, physical damage, sticking, or abnormal feel.
Do not disassemble handle assemblies or bypass safety interlocks.
Expected outcome: External drive controls appear intact and respond consistently. If cleaning an externally contaminated control or correcting an obvious external condition restores movement, verify operation and stop.
7. Check Mechanical Condition
Observe wheels, casters, column travel, tube assembly, and accessible moving structures for binding, unusual resistance, looseness, abnormal noise, or evidence of impact.
Do not force movement through resistance.
Expected outcome: Mechanical movement is smooth and free of obvious external damage. Binding, grinding, or structural damage requires removal from service.
8. Verify Positioning After Correction
Move the system through the clinically required range without a patient. Confirm brakes hold when applied, the unit stops predictably, steering is controllable, and the tube assembly remains secure when positioned.
Expected outcome: All required positioning functions operate smoothly and safely. If they do, the system may be returned to service after required verification.
If the Problem Persists
If positioning remains unavailable after checking obstructions, locks, brakes, controls, battery condition, and accessible mechanical components, common external causes have been ruled out.
Remaining possibilities include internal drive components, position sensors, brake mechanisms, motor control, internal wiring, mechanical assemblies, or service-level control faults.
The device should be:
- Removed from service.
- Labeled Out of Service.
- Sent for repair or bench evaluation.
- Evaluated using appropriate Samsung Healthcare documentation and approved test equipment.
- Repaired or configured only by qualified personnel.
Do not bypass motion interlocks or operate equipment with unreliable braking, steering, or positioning. Perform complete movement and safety verification after repair.
Knowing when to stop external troubleshooting and escalate is proper troubleshooting.
Clinical Use Tip
Before moving the mobile X-ray system around a patient, confirm the path is clear and all tube and detector components are secured.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Clinical staff reported that the GM85 Fit could not be moved normally between bedside locations."
Cause
What was observed during troubleshooting.
Example:
"Clinical Engineering found an external cable lodged near a caster and restricting system movement."
Resolution
What action was taken.
Example:
"Clinical Engineering cleared the obstruction, inspected the caster area, verified smooth transport and braking, and returned the unit to service."
Helpful Details to Include (If Known)
- Exact motion affected
- Whether movement was powered or manual
- Brake and lock status
- Battery status
- Obstructions found
- Condition of wheels and casters
- Unusual resistance or sound
- Any evidence of collision or impact
- Functions tested after correction
- Final device status
Final Thought
Safe positioning troubleshooting means protecting the patient, checking obstructions and controls before assuming an internal drive failure, verifying predictable movement after correction, and removing the system from service whenever motion or braking remains unreliable.
That is successful troubleshooting.