61 25 665 D3437
370
D3437
.
076.01.15
.
02 06.2012
10 Maintenance
Sirona Dental Systems GmbH
10.2 Checking the height adjustment
Service Manual GALILEOS
10.2
Checking the height adjustment
Checking the height adjustment
Check the threaded rod and motor for
abrasion
➢ Perform a visual inspection of height adjustment motor (A) and
spindle (B) for abrasion.
If significant abrasion is present:
ª
Replace the height adjustment motor including spindle [ → 290].
Check whether the height adjustment
produces atypical running noises
➢ Use the Up/Down keys on the control panel to move the unit up and
down through its entire adjustment range.
If the mechanics of the height adjustment is defective, a speed-
dependent hammering noise may occur which points to bearing
damage at the height adjustment motor.
If a hammering noise occurs:
ª
Replace the height adjustment motor including spindle [ → 290].
Check whether precise, jolt-free height
adjustment is possible
If the unit is not used for a longer period of time, a slight jolt may occur the
first time it starts moving. However, the next time it starts moving, it must
execute a jolt-free soft start.
➢ Use the Up/Down keys on the control panel to move the unit and
observe the movement of the slide. The slide must start in gentle
starting and then change over to a faster movement.
If the height adjustment cannot be correctly positioned in detail using
the gentle start:
ª
Lubricate the spindle with a light coat of Chesterton 622.
B
A
Summary of Contents for galileos
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