Nilfisk 3707 Manual De Instrucciones página 29

Extensions
If an extension cable is used, make sure it is suitable for the
power input and protection degree of the machine.
Max power (kW) 3
Minimum section (mm2) 2.5
Maximum length (m)
Cable
CAUTION!
ATEX variant: extensions,
devices and adapters cannot be used when vacuuming
flammable dust.
CAUTION!
Sockets, plugs, cable
installation of the extension cable must maintain the IP
protection degree of the machine, as indicated on the
data plate.
CAUTION!
The machine power socket must be protected by a
differential circuit-breaker with surge current limitation,
that shuts off the power supply when the current
discharged to the ground exceeds 30 mA for 30 msec.
or an equivalent protection circuit.
CAUTION!
Never spray water on the machine: this could be
dangerous for people and could short circuit the power
supply.
Dry applications
[ NOTE ]
The supplied filters and the bag (if applicable) must be
installed correctly.
CAUTION!
Comply with the safety regulations governing the
vacuumed materials.
5 15 22
4 10 16
20
H07 RN - F
plugged-in electrical
clamps, connectors and
3707 - 3707/10 - 3907 - 3907/18 - 3907W
Vacuuming of liquids
CAUTION!
Comply with the safety regulations governing the
vacuumed materials.
CAUTION!
■ Make sure the liquid stop device is working
correctly before vacuuming liquids.
■
In case of foam, immediately stop working, turn off
the machine and empty the container.
■ Regularly clean the liquid level limiting device
and check to make sure that there are no signs of
damage.
■ Dirty liquid vacuumed by the machine must be
considered conductive.
CAUTION!
Do not use the machine if the liquid mechanical stop is
not installed!
If it's used without the float, the machine may be
seriously damaged.
CAUTION!
When vacuuming a mix of water and air, take care to
avoid overloading the motor of the vacuum unit.
The machine vacuums liquids and deposits them into the
container.
When the machine vacuums liquids it must be equipped with
liquid electrical stop.
The liquid stop device stops the vacuuming operation and turns
off the machine when the liquid container is full; then it is then
necessary to empty the liquid container.
7
EN
GB
C65