Safety Advice For Maintenance Work; Noise; Hazards From Electrical Energy - Hettich LegaDrive Operating And Installation Instructions

3. Safety
Observe the lifting column system's ON time
of 10 %. This means, for example, that 1 minute of continuous
operation must be followed by a pause of 9 minutes or that
operation for a maximum of 2 minutes must be followed by an
18 minute pause.
No not load the desk support beyond the permissible weight limit
(see "Technical Specifications" in Section 4.1).
Allow a distance of at least 25 mm for adjacent elements moving
in relation to each other. This applies to the entire range of travel.

3.3 Safety advice for maintenance work

Please make sure that the product is always in perfect condition
and, if necessary, have it checked at regular intervals by skilled
personnel.
Do not perform any repairs to the desk or components yourself.
Maintenance work must only be performed by the manufacturer's
skilled personnel or under the manufacturer's supervision.
If the lifting column system is completely shut down for servicing
and repair work, it must be prevented from switching back on
unexpectedly.
For maintenance measures use tools that are appropriate for the
work involved.
Servicing and repair work must only be carried out by the owner's
skilled personnel.
Work on electrical components must only be carried out by a
qualified electrician or by instructed persons under the direction
and supervision of a qualified electrician in accordance with the
rules of electrical engineering.
If safety devices need removing for servicing and repair work,
they must be refitted and checked as soon the work has been
completed.
Always tighten screw connections that have come loose during
servicing and repair work.
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Do not make any structural changes to the lifting column system.
Observe the lifting column system's maximum ON time.
Only replace faulty components with new, genuine parts from
the manufacturer. When doing so, follow these operating and
installation instructions.
Make sure operating consumables and auxiliary substances as
well as replaced parts are disposed of safely and in an environ-
ment-friendly manner.

3.4 Noise

The lifting column system's A-weighted equivalent continuous
sound level is less than 60 dB (A).

3.5 Hazards from electrical energy

Only connect the lifting column system to the power supply after
it has been completely installed.
Regularly check the desk support's electrical equipment in ac-
cordance with national regulations (in Germany, the regulations
on preventing accidents).
No not use any cable with damaged insulation. You could get
an electric shock. Immediately instruct a specialised company to
replace damaged cables with undamaged ones.
Do not route the power supply cables near sources of heat. Ex-
posure to heat could damage the cable. A fire could be started or
you could get an electric shock.
Disconnect the lifting column system from the power supply if
it is to be left unused for a prolonged period or when it is not in
use.