Start Up; Operation; Shutting Down - Kärcher NT 80/1 B1 MS Originalbetriebsanleitung

– From a safety point of view, industrial
vacuum cleaners with protection against
dust explosions are not suitable for suck-
ing in hazardous substances that are ex-
plosive by nature, fluids and mixtures of
combustible dust with fluids according to
Section 1 of the Explosives Act.
– Please follow the safety regulations ap-
plicable to the materials to be sucked in.
During proper/ improper use, the parts
(such as exhaust opening) of the indus-
trial vacuum cleaner can tolerate a
maximum of 95 °C.
– Vacuum cleaners, especially those with
a test certificate, may not be modified.
This applies in particular to the combi-
nation of entry element (nozzle), pipes,
wet scrubber and vacuum cleaner.
– A modification of vacuum cleaners (e.g.
changing the cross-section or length of
the suction hose) for special applica-
tions may only be performed with the
prior approval of the manufacturer.
– Prior to use, the flawless condition of
the vacuum cleaner including the elec-
tric supply line must be ensured.
In Emergency
 In case of emergency (e.g. when suck-
ing in combustible materials, in case of
a short-circuit or some other electrical
defect), switch off the appliance and
pull the mains plug.
DANGER
Risk of explosion. Prior to each start-up,
check the water level in the containers (fill
level in the centre of the sight glass).
 Put the unit into its working position, se-
curing it with the parking brake if neces-
sary.
 Insert the suction hose into the suction
hose connection and lock it in place by
turning it in a clockwise direction.
 Fill the container with water to the cen-
tre of the sight glass.
 Add foam ex (RM 761), observe dosing
instructions.
14

Start up

 Attach the desired accessories and turn
them clockwise.
Note: Additional regulations can be appli-
cable to dusts with an ignition capacity be-
low 1mJ.
Turning on the Appliance
 Insert the appliance plug into the mains
socket. Do not use extension cables.
 Switch on the appliance using the On/
Off switch (Position 1).
Automatic monitoring of suction
The machine is equipped with a suction
power monitor. The control lamp lights up if
the air speed in the suction hose falls below
20 m/s.
 Check suction hose and attachments
for blocks.
 The cartridge filter must also be re-
placed if the machine is used for long
periods.
Note: The control lamp can light up occa-
sionally during normal operation (e.g.,
while working with a floor nozzle), if the air
volume comes down (cross-sectional re-
duction) causing a low pressure.
Note: There is no defect in this case; only
an indication that, as specified above, the
air volume has reduced and the low pres-
sure has increased.
Note: If the container is full, a float closes
the suction opening, and the suction tur-
bine works at a higher speed. Switch off the
appliance immediately, and empty the con-
tainer.

Shutting down

After vacuuming up burned
DANGER
Risk of explosion due to unburned propel-
lant residue. Clean the vacuum cleaner and
its accessories immediately after every
vacuuming procedure.
– 4
EN

Operation

capacity
propellant