On this page
Asset Type
Manufacturer
Model
What This Guide Helps With
Drive assist, brake, or steering issues caused by power, battery, wheel, floor, control, or transport-related problems.
Step-by-Step Troubleshooting
Ensure Patient Safety First
Do not troubleshoot movement problems while the mobile X-ray system is near a patient, bed, stretcher, or crowded clinical area.
Action:
- Move patients, staff, and obstacles away from the unit.
- If the unit cannot be moved safely, secure the area and notify the department.
Expected outcome:
The unit is stable, patient care is not affected, and there is no risk of unintended movement.
If this resolves the immediate safety concern, stop and document the condition.
Confirm the Reported Problem
Determine whether the issue is with drive assist, braking, steering, or general movement resistance.
Action:
Ask staff what happened:
- Drive assist not engaging
- Unit hard to push
- Brake will not release
- Brake will not hold
- Steering feels locked, loose, or uneven
- Unit pulls to one side
- Problem occurs only on ramps, thresholds, or certain floors
Expected outcome:
The symptom is clearly identified before parts or internal faults are suspected.
Check Battery Charge and Power Status
Many mobile X-ray drive systems rely on adequate battery charge and proper system power.
Action:
- Check the battery level, power indicators, and whether the unit is fully booted.
- Plug the unit into a known-good outlet if charge is low.
Expected outcome:
The unit has enough power to support drive assist, brake release, and control functions.
If low battery caused the drive or brake issue, charge the unit and verify normal movement before returning it to service.
Verify the Unit Is Fully Powered On
Some movement functions may be disabled if the system is off, partially booted, or in a standby condition.
Action:
- Power the unit on fully and allow it to complete startup.
- Check for warning messages, inhibit messages, or drive-related alerts.
Expected outcome:
The unit reaches a normal ready state without drive, brake, or motion warnings.
Inspect the Area Around the Wheels
Physical obstruction is a common external cause of movement problems.
Action:
Check all wheels and casters for:
- Debris
- Tape
- Cable wrap
- Linen
- Syringe caps
- Floor mats
- Damaged tread
- Objects wedged near the wheel assembly
Expected outcome:
Wheels rotate freely with no visible obstruction.
If debris is found and removed, retest movement in a safe open area. If operation is normal, stop and document.
Check for Brake Engagement or Parking Brake Issues
A brake that is partially engaged can make the unit feel like the drive system or steering has failed.
Action:
- Confirm the brake control is fully released.
- Listen or feel for brake release if the model provides noticeable feedback.
- Attempt gentle movement only in a safe area.
Expected outcome:
The brake releases fully and the unit moves normally.
If the brake remains engaged or will not hold when applied, remove the unit from service.
Test Drive Assist in an Open, Level Area
Drive assist problems should be tested away from patients and obstacles.
Action:
- Move the unit to a clear, level hallway or service area.
- Test forward and reverse drive assist at low speed.
Expected outcome:
Drive assist engages smoothly, responds consistently, and stops when the control is released.
If drive assist is intermittent, delayed, surging, or not responding, continue troubleshooting.
Check Handle, Deadman, or Drive Control Operation
Drive assist may not activate if the handle switch, trigger, grip sensor, or control input is not being recognized.
Action:
- Inspect the control handle for obvious damage, sticking, looseness, cracked plastics, liquid residue, or signs of impact.
Expected outcome:
Controls move normally and return to their neutral positions.
If a control is physically damaged or sticking, remove the unit from service for repair.
Verify Neutral Position and Control Release
A drive control that does not return to neutral can create unsafe movement behavior or drive inhibition.
Action:
- Release the drive controls and confirm they return fully to the rest position.
- Power cycle the unit only if safe and allowed by site procedure.
Expected outcome:
Controls return to neutral and any motion inhibit clears.
If the unit continues to show abnormal drive behavior, do not keep testing in a clinical area.
Inspect Steering Movement
Steering issues may be mechanical, wheel-related, or caused by uneven floor contact.
Action:
Slowly move the unit in a safe area and observe whether steering is:
- Excessively stiff
- Loose or wandering
- Pulling to one side
- Binding at certain angles
- Uneven over thresholds
Expected outcome:
Steering is smooth and predictable.
If steering binds, pulls heavily, or feels unstable, remove the unit from service.
Check Floor and Environmental Conditions
The unit may behave differently on ramps, damaged flooring, elevator thresholds, or wet surfaces.
Action:
- Compare movement on a clean, dry, level floor versus the area where the problem was reported.
Expected outcome:
Movement is consistent across normal flooring.
If the issue only occurs in one location, document the floor condition and notify facilities if needed.
Look for Error Messages or Indicator Lights
Drive, brake, and steering problems may be associated with system warnings.
Action:
- Check the operator display for active alerts, fault codes, inhibit messages, or service indicators.
- Record the exact message before power cycling.
Expected outcome:
Any displayed fault is documented clearly for repair escalation.
Check for Recent Impact or Transport Damage
Mobile X-ray systems are frequently moved through tight spaces and may be damaged by door frames, elevators, beds, or wall impacts.
Action:
- Inspect the base, wheel area, handle, column, covers, and lower chassis for fresh damage.
Expected outcome:
No signs of impact, cracked covers, bent components, or loose assemblies are present.
If damage is found, remove the unit from service and escalate for repair.
Perform a Safe Functional Movement Check
Only continue if the unit appears mechanically safe and no severe fault is active.
Action:
In a safe open area, verify:
- Forward movement
- Reverse movement
- Turning left and right
- Brake release
- Brake hold
- Stop response when controls are released
Expected outcome:
The AMX moves, steers, brakes, and stops predictably.
If the unit passes testing, return it to service and document the checks performed.
If the Problem Persists
If the drive assist, brake, or steering problem continues after external checks, common user-accessible causes have been ruled out. The issue may involve the drive motor, brake assembly, steering linkage, control handle, sensor input, wiring, battery support circuit, or internal drive electronics.
The device should be:
- Removed from service
- Labeled Out of Service
- Sent for repair or bench evaluation
Knowing when to stop is proper troubleshooting. A mobile X-ray system with unreliable movement or braking can injure patients, staff, or damage property.
Clinical Use Tip
Do not troubleshoot drive or brake problems while the unit is positioned at bedside or near an active patient. Move the patient care need to another imaging device first, then troubleshoot the AMX only when the area is safe and controlled. This helps maintain therapy continuity and prevents troubleshooting from interfering with active patient care.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Staff reported the GE AMX mobile X-ray system was difficult to steer and the drive assist would not consistently engage during transport."
Cause
What was observed during troubleshooting.
Example:
"Inspection found debris wrapped around the front caster and the unit had low battery charge, causing inconsistent movement assistance."
Resolution
What action was taken.
Example:
"Removed debris, charged the unit, verified brake release, steering, forward and reverse drive assist, and returned the unit to service."
Helpful Details to Include (If Known)
- Battery charge level at time of inspection
- Whether the unit was plugged in or running on battery
- Exact drive, brake, or steering symptom reported
- Whether the issue occurred on level floor, ramp, elevator, or threshold
- Wheel and caster condition
- Brake release and brake hold behavior
- Any displayed fault or warning message
- Any unusual sounds during movement
- Any burning smell, heat, or visible damage
- Whether the unit pulled to one side
- Environmental factors such as wet floors, damaged flooring, ramps, or elevator thresholds
- Indicator lights, power indicators, or service warnings observed
- Final device status
Final Thought
Drive, brake, and steering complaints on a mobile X-ray system should be treated as safety issues first. Start with the environment, battery status, wheels, controls, and brake behavior before assuming an internal failure. If movement is unpredictable or braking is unreliable, remove the unit from service and document the findings clearly.
That is successful troubleshooting.