Replacing The Lift Motor - Planmeca ProOne Technical Manual

PARTS REPLACEMENT
2.4

Replacing the lift motor

WARNING
Care must be taken when replacing the lift motor. Removing
parts of the lift motor assembly may enable the column to fall
causing a dangerous situation and/or damage to the X-ray unit.
The downwards movement of the moving column must be
eliminated before detaching any parts.
WARNING
The X-ray unit contains live mains voltage parts. Always
disconnect the X-ray unit from mains before carrying out any
servicing work on the lift motor.
Lock the moving column into position by inserting two locking pins in the back of the
column.
If the lift motor is functional, carefully drive the moving column up/down until the locking
pin holes are in the correct position (Fig. 65 and Fig. 66). Insert the locking pins into the
holes. Then drive the lift motor down an additional 10 mm (0.4 in.) to slacken the lift motor
cables. Now switch the X-ray unit off and unplug it from the mains.
If the lift motor is not functional, you will need a second person for assistance. Remove the
spindle shaft (Fig. 67 and Fig. 68) and lift/lower the moving column until the locking pin
holes are in the correct position (Fig. 65 and Fig. 66). One person will then have to hold
the column in position while the other one inserts the locking pins into the holes. Make
sure that the moving column is safely supported during this procedure; failure to support
the moving column properly might make the column fall causing a dangerous situation
and/or damage to the X-ray unit.
Back of
stationary
column
Locking pin
holes
Figure 65
Technical Manual
CHAPTER D
MOVING COLUMN
Back of
moving
column
Planmeca ProOne D-5