KaVo ORTHOPANTOMOGRAPH OP 3D Pro, Service Manual, Page: 191 / 192

8 Maintenance procedure
183
Ground test
Test the safety ground continuity by measuring the
resistance between the ground pin on the mains power
supply cable connector and some metal part in the rotator.
The resistance must be less than 0.2 Ohm.
Fan operation
Check that the fans in the generator housing air intake and
outblow, as well as the the fan in the power supply air
intake is operating normally and without noise. Clean the
fans from dust if needed. Replace faulty fans.
Dust removal
The generator housing and the electronics contained
therein must be free from dust to avoid risk of fire. Check
the generator housing for accumulated dust and use a
vacuum cleaner for dust removal if needed.
Labels
Check that all labels are attached and legible. A list of
labels can be found in the Installation Manual, section 1.12
Unit identification labels.
Adjustment and calibration
Reattach upper and lower rotating unit covers before
performing any calibrations. The movements might
otherwise be obstructed or not behaving as during normal
operation. After attaching the covers, power on the unit and
perform a movement test (s2terminal service command
“motortest”). Note that pixel calibrations shall be done with
tubehead covers attached.
Covers
Check that all covers are correctly installed and in good
condition.
Quality Assurance
Perform the Quality Check programs for all installed
modalities. Ensure the results are acceptable.