(2) Verify that the line compensation light emitting diode (led) [yellow, green,
red]) lights up the digital line adequacy voltmeter.
(4) Make sure that the deadman feature interrupts the X-ray exposure after
releasing the exposure switch. If the X-ray exposure is not interrupted, perform the
(a) Test the deadman feature as described in Lesson 3, paragraph
(b) Calibrate the exposure time per procedures in Lesson 2, paragraph
(5) Calibrate the unit. See Lesson 2, Perform Verification/Calibration of the
Inter-oral Dental X-ray.
(6) Exchange the desiccant bag 18 months after date of manufacture and
then every year. The desiccant bag is in the storage packaging and has a color
indicator: blue means "good," pink means "not good."
b. Quarterly PREVENTIVE MAINTENANCE CHECKS AND SERVICES.
When you receive DD Form 314, on a dental X-ray unit for scheduled PMCS, you perform
the PMCS. To perform PMCS on a field dental X-ray machine you need the following
equipment; the multimeter and pulse counter designated in paragraph 1-3 above. Use
the following procedures.
Inspect the carrying case to ensure the following conditions exist.
(a) The carrying handles and latches are not broken or missing.
(b) The pressure relief valve is operational, that is, the push button is not
broken or missing and springs back after release.
The case lid gasket does not have cuts or nicks.
(d) All straps are intact.
(e) The leveling devices are not broken or missing and are functional.