Planmeca Proline CC Technical Manual page 104

Chapter E - DIMAX3 DIGITAL SYSTEM ADJUSTMENT
Primary slot adjustment - radiation beam too low, high or not vertical
Beam too low
NOTE
Beam not vertical
NOTE
E-16 Planmeca Proline CC panoramic x-ray
WARNING
DO NOT ADJUST THE POSITION OF THE PRIMARY SLOT MECHANISM WHILE X-RAYS
ARE BEING GENERATED. CHECK THE BEAM POSITION, ADJUST THE POSITION WITH
THE X-RAYS SWITCHED OFF AND THEN RECHECK THE POSITION. IF THE BEAM IS
STILL MISALIGNED REPEAT THE OPERATION.
If the beams are too high or low loosen the four screws that hold the primary slot plate in position
and adjust as necessary. Tighten the screws and recheck the beam. Repeat the above proce-
dure until the beam is correctly positioned.
Beam too high
UP
UP
DOWN
DOWN
Figure 21
The four primary slots are machined in one plate. Any adjustments made to the primary
slot plate or slot mechanism will automatically move all the slots. If any adjustments are
necessary you will probably find that adjusting the first slot is all that is needed to cor-
rectly align all the slots.
If the beam is not vertical loosen the two screws that hold the primary slot mechanism to the col-
limator tube and rotate the mechanism until the beam is correctly positioned. Tighten the screws
and recheck the beam. Repeat the above procedure until the beam is correctly positioned.
UP
DOWN
Figure 22
The ceph primary slots are also adjusted according to instructions given in this section.
Securing screws
Securing screws
Technical Manual