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OPERATOR'S MANUAL
EN
13.2. TECHNICAL MAINTENANCE
These instructions describe the maintenance procedures for the extraoral X-ray system. These instructions apply to all versions of said equipment.
In order to ensure the operational safety and functional reliability of the equipment installed, at least once a year an authorized service technician must perform a full inspection of the device.
When taking measurements that require a multimeter, always use a calibrated digital multimeter.
All the following tests will be carried out. Customer should be notified prior to replacing any parts.
Answer questions with yes (√) or not (−)
Inspection DATE
Step
Description
Reference in the manual
__/__/20__
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1
"Check that all labels located
-
on the detector/s
-
on 3D panel (if any)
-
at the base of the column,
-
on the X-ray tube housing,
are intact, well attached and legible.”
User Manual, section Identification nameplate position
2
Check there are no external damages to the equipment, which may reduce protection against radiation.
User Manual, section Description of operation
3
Open the generator covers and check that there are no leaks from the X-ray tube head; if leaks are detected, replace it.
See Technical Instruction, section Replacing Cylinder Block Assembly (code
96609097
–
96609124
–
96609125)
4
Remove the dust accumulated inside the generator casing using a vacuum cleaner, then refit the covers.
See Technical Instruction, section Replacing Cylinder Block Assembly (code
96609097
–
96609124
–
96609125)
5
Check that the remote emission button cable is not broken or scratched
User Manual, section X-ray emission remote control
6
Switch off the unit and disconnect it from the main power supply and check the condition of the main power supply cable. Replace it in case of
damage. Connect it back making sure the safety ground is securely connected.
Technical Manual, section PFC board wiring connections
7
Check the power switch, verifying that the ON/OFF button is working properly and that the touch panel display switches on when the switch is in the
ON position.
User Manual, section Starting the system
8
Check the touch screen console functionality: functions must respond to interrogation.
User Manual, section Touch screen display icons
9
Check proper functioning of X-ray exposure LED and exposure buzzer
User Manual, section X-ray emission remote control
10
Check proper functioning of X-ray centring laser traces
User Manual, section Laser traces
11
Make sure that the detector is smoothly inserted inside the guides on Pan and CEPH sides - only for units with Cephalometric arm and removable
detector.
User Manual, section Sensor movement
12
Perform a movement test running the Dummy panoramic procedure, making sure the movement on the 3 axes X, Y, R (rotation and translation
simultaneously) is smooth and without noise. See figure 1, next page.
To perform a dummy cycle, namely the simulation of an examination without the
emission of X-rays, select any type of panoramic X-ray examination and reset
the unit. Once the reset position has been reached, press the “Reset” button
and keep it pressed during the entire procedure, otherwise the movement will
stop.
13
If a Cephalometric arm is installed, perform a movement test for the cephalometric detector using the Dummy Ceph test procedure, and making sure
that the movement on the H axis (translation) is smooth and without noise. See figure 1, next page.
To perform a dummy cycle, namely the simulation of an examination without the
emission of X-rays, select any type of cephalometric examination and reset the
unit. Once the reset position has been reached, press the “Reset” button and
keep it pressed during the entire procedure, otherwise the movement will stop.
14
Perform column movements, up and down on the Z axis and check proper functioning. See figure 2, next page.
User Manual, section Control panel (console onboard the machine)
15
Check the emergency stop button functionality. Emergency stop button is used to stop X-
ray device operation, it is located under the patient’s
support arm, near the telescopic column
User Manual, section Emergency stop button
16
Verify that exposure is immediately interrupted when x-ray button is released
User Manual, section X-ray emission remote control
17
Check the x-ray generator functionality performing a complete trial exposure. Select any panoramic exam and reset the unit. Hold down the emission
button throughout the entire exam procedure. Absence of error messages assures proper generator functionality.
User Manual, section Performing a 2-D X-Ray examination
18
Perform a complete 2D calibration of the unit: column calibration, PAN x-ray alignment, PAN detector calibration, PAN mechanical alignment, Laser
test. In case of Cephalometric option, perform also the following calibrations: Ceph alignment, Ceph detector calibration, Ceph mechanical
alignment, Nasion Calibration, Ear guide loops alignment.
Technical manual, section 2D Calibration
19
At the end make a calibration backup
Technical manual, section Calibration backup
20
Perform a complete 3D calibration of the unit: Beam limiter test, Daily check, Cylindrical test phantom acquisition.
Technical manual, section 3D Calibration
21
At the end make a 3D calibration backup
Technical manual, section 3D calibration backup
22
Perform an exam on the 3D Quality Phantom and evaluate the quality of the outcome volumetric study.
Acquisition Operations with Annex
Operator Name
Signature
The undersigned confirms that the equipment was checked for the above criteria and that it was provided in optimal operating conditions.
All inspection and maintenance work performed by the system owner and/or service engineer must be recorded in this document and kept near the unit!!
