Sirona Dental Systems GmbH
29 Checking the Safety Switches
59 58 470 D 3370
D 3370.031.01.10.02
39
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Performance of safety tests
1.
Prior to handover of the treatment center, a number of
safety tests must be performed. They are described in
the Maintenance Manual.
The values measured during initial start-up must be
documented there.
Checking the safety switches
2.
Check the safety switches installed in the unit.
Lower the chair and the backrest.
•
Lift the leg support:
The chair movement stops, then there is a corrective
movement upwards for about 3s.
•
Lift the backrest:
The backrest movement stops, then there is a correc-
tive movement upwards for about 3s.
•
Raise the motor-adjustable headrest:
The backrest movement stops, then there is a correc-
tive movement upwards for about 3s.
•
Swing in the swiveling cuspidor :
The chair movement stops.
ATTENTION
If one of the safety switches does not stop the chair move-
ment or the backrest movement, the treatment center must
not be used for dental work!
The fault must be eliminated before handing the treatment
center over to the customer.
29 Checking the Safety Switches
