Replacing The Height Adjustment Motor (M1_4)/Spindle; Preparing For Motor Replacement; Moving The Slide Manually - Sirona ORTHOPHOS XG 3Dready Service Manual

Tab 6
Moving the unit up and removing the
profile covers
59 38 399 D3352
D3352.076.01.26.02 09.2016

6.2 Replacing the height adjustment motor (M1_4)/spindle

6.2
Replacing the height adjustment motor
(M1_4)/spindle
6.2.1

Preparing for motor replacement

Remove the sensor and store it in a safe place.
Switch the unit ON.
Use the UP/DOWN keys on the Easypad (XG
(XG 5 / 3 / 3 PPE) to move the slide upward and remove the cover parts
(see section 1.13):
– Intermediate piece
– Profile covers, top and bottom
i
NOTE
Tip: While loosening the screws, press the top profile cover down towards the
unit and allow it to slide down once the screws are loose.
Switch the unit OFF again.
i
NOTE
If the height adjustment motor is inoperative, you can also move the slide man-
ually.
6.2.2

Moving the slide manually

CAUTION
If the slide can no longer be moved electrically, it must be moved mechanically.
You must lock the slide in position to prevent the risk of the carriage plummet-
ing downward during service work if the self-locking function does not fully en-
gage.
Sirona recommends using the the height adjustment service kit,
REF. 62 57 518, for this purpose.
This service kit is used to prevent automatic downward movement of the slide
during service by fixing the slide and the spindle holder.
The clamp A is clamped tightly underneath the slide. The locking pin B is used
to secure the spindle holder against twisting.
It must be ensured that no one is located underneath the ring arm during the
repair.
Plus ready
/ 3D ) or Multipad
6 – 7