Gantry Rotation Safety Check

Prerequisites

Table 2. Safety

Crush hazard
Equipment could eject from gantry.
Ensure that no personnel are in the same room/area as the gantry prior to and during thE scanS.

Use DDC to Rotate the Gantry for 10 minutes, at the fastest allowed gantry speed.

Make sure the “Axial Drive” and “HVDC” swiches on the service switch panel are off.
Manually rotate the gantry through a full rotation listening for an contact between stationary and rotating parts
- Listen for an contact between stationary and rotating parts. Correct any issues found before continuing.
- Watch and listen for any loose parts/cables and tighten them before continuing.
Turn on the “HVDC” and “Axial Drive” switches.
Start the axial functional diagnostic.
1. Open the Common Service Desktop
2. Select the Diagnostics Icon
3. Select the Axial Control Folder and then Axial Functional menu item to start the diagnostic.

Do NOT be present in the scan room while the gantry is rotating. Listen from the scan room door.

Select a rotation speed of 2 seconds and run the test. This step should be run for a minimum of 30 seconds.

Listen for an contact between stationary and rotating parts. Correct any issues found before continuing.

note:
Be ready to click on Stop button on the menu immediately if you hear any problems. (This stops the gantry faster than the red emergency stop (E-stop) button)
Repeat Step 5 for rotation speed of 1.0 and 0.8 seconds.
Wait 3 minutes after the gantry stops rotating before continuing to allow for axial drive cooling.

note:
Be ready to click on the Stop button on the menu immediately if you hear any problems. (This stops the gantry faster than the E-off button)
If no issues arise, gantry rotation capability is safe for use.

No finalization steps.