Karcher IB 7-40 Advanced - Manual (Page 14)

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Warning
Do not use the appliance when there are
other persons around unless they are also
wearing safety equipment.
The appliance must not be used if a con-
necting line or important parts of the appli-
ance, e.g. safety devices, spray hose,
spray gun.
Danger of crushing on account of the dos-
ing equipment. Always remove the ma-
chine plug from the socket before removing
the protective shield of the dry ice contain-
er.
For the operation of this system the follow-
ing regulations and directives are applica-
ble in the Federal Republic of Germany
(available from Carl Heymanns 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 189 Using safety gear
– BGR 195 Using of safety gloves
– BGR 500 Working with spraying devic-
es
– BGI 534 Working in closed rooms
– BGI 836 Gas warner
If the emergency stop button is pressed,
the dry ice dosing is stopped and the air
flow from the nozzle is interrupted.
 Release the trigger of the jet pistol.
 Press emergency-stop button.
The dry ice dosing is topped and the air
flow from the nozzle is interrupted.

Interrupt the compressed air supply.
The machine is used to remove dirt using
dry ice pellets that are speeded up using an
air jet.
The machine should not be operated in ex-
plosive environments.
Use only dry ice pellets as jet medium. Us-
ing any other jet medium can cause dam-
age to the machine.
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 pis-
tol. Additionally, dry ice pellets are dosaged
into the air stream via the dosing device.
With the version "IB 7/40 Advanced" the
additional dosing can be switched off at the
jet pistol. The dry ice pellets hit the surface
to be cleaned and remove the dirt. Addi-
tional heat currents are formed between
the dirt and the object to be cleaned by the
-79 °C cold dry ice pellets; this results in the
dirt being loosened. 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 contain-
er ensures continuous sliding of the dry ice
pellets.
1 Push handle
2 Cover of the dry ice container
3 Holder for jet pistol
4 Storage compartment for accessories
5 Operating field
6 Coupling of the control cable
7 Earthing rope with clamp (only IB 7/
40 Advanced, option for IB 7/40 Clas-
sic)
8 Coupling spray agent hose
9 Guiding roll with fixed position brake
10 Transport handle, bumper at the rear
11 Dry ice outlet for emptying the container
1 Cable clamp
2 Mains cable with mains plug
3 Pressure relief valve, condensate
draining of the water separator
4 Compressed air connection
5 Condensate drain-out
6 Fuse F1, below the side panel
1 Statistics key, reset counter
2 Key to empty the dry ice container
3 Display
4 Key "increase jet pressure"
5 Key "decrease jet pressure"
6 Increase the dry ice dosing
7 Decrease the dry ice dosing
8 Power switch
9 Emergency-stop button
10 Key switch
Specifications and Guidelines
Safety Devices
Emergency-stop button
Switch-off in case of emergency
Proper use
Function
Control elements
Device
Operating field
14 EN