6 PREVENTIVE MAINTENANCE
30 Planmeca ProX Technical manual
6 PREVENTIVE MAINTENANCE
6.1 Cleaning
Surfaces
When cleaning the unit surfaces, always disconnect the unit from mains.
The unit surfaces can be cleaned with a soft cloth damped in a mild cleaning solution.
Stronger agents can be used for disinfecting the surfaces. We recommend Dürr System-
hygiene FD 322 or respective disinfecting solution.
Film holder
The film holder can be autoclaved up to 145°C or cleaned with alcohol-based solutions.
6.2 Operation checks
Indicator light for ready status
Confirm that the green ready status indicator light comes on when the unit is ready to take
an exposure
.
Exposure warning indicator light and signal
Confirm that the yellow exposure warning light will come on when you take an exposure.
Confirm also that the audible warning sound is heard during the exposure.
Exposure key
Confirm that the exposure key requires continuous activation to maintain the exposure.
Labels
Check that no labels are detached or worn and that they are all legible.
6.3 Preventive maintenance adjustments
• Check arm balance and friction
Adjust if needed. Refer to section 9.1 “Adjusting balance of arm” on page 41 and
section 9.2 "Adjusting rotational friction of bracket arm" on page 43.
• Check bracket arm angles
Adjust if needed. Refer to section 9.3 “Adjusting tube head’s rotational friction” on
page 43.
• Check stiffness of tube head’s horizontal axle
Adjust if needed. Refer to section 9.3 “Adjusting tube head’s rotational friction” on
page 43.
• Check tube head vertical stiffness
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