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7
Safety precautions
4. Electrical
safety precautions
Always ensure that the electric power cable, from
the mains or from a generator, contains an earth / ground
conductor and that this conductor is connected. The DS
TS 5-SE must not, under any circumstances, be operat-
ed without an earth / ground conductor connected. Defec-
tive insulation or sawing into live cables presents a risk
of fatal accident if no earth / ground conductor is con-
nected.
Always ensure that the electric power cable, from
the mains or from a generator, is equipped with an RCD
residual current device (earth leakage circuit breaker,
ground fault interrupter) with a rating of max. 30 mA.
The RCD circuit breaker must be checked for correct
functionality each time before operating the DS TS 5-SE.
Check that all cables and plugs are in good con-
dition each time before use.
Do not operate the equipment if damage is found
or if the operating controls are not in perfect working
order.
The mains voltage must comply with the speci-
fication on the rating plate. Tolerance for operation of
the DS TS 5-SE is ±10%.
Always observe the self-check functions of the
remote control indicator lamps when switching on the
electric wall saw.
Ensure that the electric wall saw is switched off
at the remote control unit before changing blades or dis-
assembling the saw. As an additional safety measure,
we recommend pressing in the emergency OFF button.
Electric power cables and, in particular, their plug
connections should be kept dry. When unplugging, pull
the plug and not the cable. Protect the electric cable from
sharp edges and heat. Do not allow it to come into con-
tact with oil.
Use only approved electric extension cables with
conductors of adequate capacity (cable cross section).
Failure to observe this point can result in a drop in per-
formance and overheating of the cable.
4.1
4.8
4.9
4.6
4.7
4.5
4.3
4.4
4.2
Electric extension cables must not be coiled on a
drum while the electric wall saw is in operation.
Only trained and authorised Hilti repair person-
nel and qualified electrical specialists may remove the
cover from the casing of the DS TS 5-SE electric wall
saw in order to carry out repairs.
Always unplug the power cable before carrying
out any maintenance and when the electric wall saw is
not in use.
Important: Information for repair personnel
The capacitors in the DS TS 5-SE hold a voltage for
approx. 2 minute after the electric wall saw is discon-
nected from the mains supply.
Never open the cover on the housing of the
DS TS 5-SE electric wall saw while on the job site.
If an electric generator is to be used for powering
the DS TS 5-SE electric wall saw, we recommend the
use of a unit with an output of 15 kVA (3
×
400 V) / 10 kVA
(3
×
200 V). The generator must be earthed / grounded.
4.13
4.14
4.15
4.12
4.11
4.10