KaVo ORTHOPANTOMOGRAPH OP 3D Service Manual page 139

Collimator adjustment
If the Collimator Calibration has failed due to the collimator being too high/low or tilted,
adjustment is required.
NOTICE! After the adjustment, all calibrations related to radiation must be
performed again.
1. To move the collimator in UP/DOWN direction, turn the collimator height
adjustment screw:
a) Clockwise to move the collimator downwards.
b) Counter clockwise to move the collimator upwards.
2. To rotate the collimator LEFT/RIGHT, loosen the two upper locking screws (1), the
lower locking screw (2) and turn the adjustment screw (3):
a) Clockwise to turn the collimator left.
b) Counter clockwise to turn the collimator right.
3. After the adjustments, tighten the locking screws and redo the collimator calibration
to verify the adjustment.
4. Install the tubehead covers back on.
ORTHOPANTOMOGRAPH
NOTICE! The GUI informs you how much the collimator needs to be adjusted
and in which direction. One full turn of the screw (360°) equals about 0.7 mm.
NOTICE! You may also loosen the screws 2 and 3, turn the collimator to the
required position by hand and then tighten the screws.
™
OP 3D
8 Part replacement instructions
139