9 System maintenance
66
GE Healthcare
86500-IMG rev 3
9.3
O
PERATORS
MAINTENANCE
SCHEDULE
For the safe and proper operation of the unit, the following inspections
must be performed monthly (or daily or weekly if so indicated) by the
operator of the equipment.
Monthly check-up
Procedure
Visual Exposure Indicator
Confirm that the exposure indicator light
stays on for the length of the exposure.
Audible Exposure Indicator
Confirm that the buzzer stays on for the
length of the exposure.
Exposure Switch
Confirm that the exposure switch
requires continuous pressing to maintain
the exposure and that releasing of the
switch terminates the exposure and that
the timer display indicates “Rel”.
Warning and Indicator Labels Inspect and confirm that all warning
labels and embossed, painted or other
wearable labels have not been defaced
or worn and that they are legible.
Automatic Exposure Control
(AEC)
Confirm that the autoexp light illuminates
when AEC is selected. A daily QA check is
recommended. Software monitors the
status of each detector and prevents an
exposure with a faulty detector.
Vertical Movement
Check that the carriage moves smoothly
and in both directions.
Compression force
Check that the compression force has not
changed.
Compression release when
power failure
Check that the compression paddle
drives up for approximately 5 seconds
when the mains voltage is disconnected.
Rotation Movement and angle
display
Check that the C-Arm moves smoothly in
all positions. Check that the displayed
angle corresponds to the selected angle.
Also check that +/- 15° motorized stereo
angulation movement is functioning
correctly.
Control Panel
Check that all buttons on the control
panel are functioning and check that all
lights and display segments function
immediately after turning the main
power on.
Compression thickness
display check
Place a 60 mm acrylic block on the
cassette holder. Drive the compression
paddle down against the acrylic blocks.
Check that the thickness display indicates
6.0 cm. If not, call for service.
X-ray field light check
Switch on the x-ray field illumination light
and check that it covers the imaging
area.
FOR
TRAINING
PURPOSES
ONLY!
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