Function - Kärcher IB 15/120 Manual

DANGER
Risk of cold burns on account of dry ice
or cold parts of the machine. While
working on the machine, wear appro-
priate safety gear for protection against
cold or remove dry ice and let the ma-
chine heat up.
DANGER
Danger arising from volumetric expan-
sion and cryogenic burn.
Never put dry ice in your mouth.
WARNING
Risk of injury on account of the recoil
force of the jet pistol. Ensure that you
are standing at a safe place and hold
the jet pistol properly in your hand be-
fore pressing the trigger of the jet pis-
tol.
DANGER
Risk of injury on account of flying ob-
jects. Fix light cleaning objects proper-
ly to prevent them from being dragged
off with the dry ice jet.
WARNING
Danger of crushing on account of the
dosing equipment. Always remove the
machine plug from the socket before
removing the protective shield of the
dry ice container.
Specifications and Guidelines
For the operation of this system the fol-
lowing regulations and directives are
applicable in the Federal Republic of
Germany (available from Carl Hey-
manns Verlag KG, Luxemburger
Straße 449, 50939 Cologne):
BGV D 26 Spray jet tasks
–
Executing instructions for BGV D
–
26
BGR 117 Working in closed rooms
–
BGR 139 safety rules for persons -
–
emergency signal systems.
BGR 189 Using safety gear
–
BGR 195 Using of safety gloves
–
BGR 500 use of work equipment
–
BGI 534 Working in closed rooms
–
BGI 836 Gas warner
–
Observe national safety provisions and
safety instructions as well as national
provisions of occupational health and
safety agencies and trade associa-
tions!
Safety Devices
Emergency-stop button
If the emergency stop button is
pressed, the dry ice dosing is stopped
and the air flow from the nozzle is inter-
rupted.
Switch-off in case of emergency
Release the trigger of the jet pistol.

Press emergency-stop button.

The dry ice dosing is stopped and the
air flow from the nozzle is interrupted.
Interrupt the compressed air sup-

ply.

Function

The air pressure reaches the jet pistol
via a pressure regulation valve. The
valve opens when the trigger of the jet
pistol is pressed and the air flow comes
out from the jet pistol. Additionally, dry
ice pellets are dosed into the air jet via
the dosing device. The additional dos-
ing can be switched off by means of
the operating mode switch. The dry ice
pellets hit the surface to be cleaned
and remove the dirt. Additional thermal
stress occurs between the dirt and the
object to be cleaned due to the -79 °C
cold dry ice pellets; this contributes to
the removal of the dirt. At the same
time, dry ice immediately gets coverted
into gaseous carbon dioxide on contact
and requires 700 times the volume of
dry ice. Thus, the dirt penetrated by the
dry ice thus gets thrown off.
During the spraying operation through
the jet, a vibrator located on the dry ice
container ensures continuous sliding
of the dry ice pellets.
3
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EN 5