Operating instructions

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Immediately inform your dealer or sales facility if you de-
tect any defects or transport damage upon the delivery of
the vehicle.
Warning and information plates on the machine provide
important directions for safe operation.
In addition to the information contained in the operating in-
structions, all statutory safety and accident prevention reg-
ulations must be observed.
The B 300 RI is a combination device for wet cleaning and
sweeping without refitting.
This appliance is suited for the commercial use, e.g. in ho-
tels, schools, hospitals, factories, shops, offices, and rental
companies.
Depending on the cleaning tasks, different brushes may be
used and a selection can be made between side brushes
deck and side scrubbing deck.
These operating instructions describe the maximum num-
ber of attached devices. Your appliance may differ.
With adequate ventilation, the gas version (LPG) can be
used in inside areas (halls and industrial buildings).
Carefully read the operating instructions and familiarise
yourself with the control devices and the remaining equip-
ment prior to using the vehicle.
The vehicle must only be used as intended, as outlined
and described in these operating instructions.
The intended use also includes the observance of the re-
quired maintenance.
The vehicle and the attachments may only be used, main-
tained and repaired by persons that are familiar with the
tasks and have been briefed about the associated risks.
The general safety and accident prevention regulations of
the legislator must be observed. Other applicable safety-
relevant, occupational health and road traffic regulations
must be observed.
The operating personnel must:
– be physically and mentally capable
– be trained in handling the vehicle
– read and understand the operating instructions prior to
starting work
– have demonstrated the entrepreneur the skills for driv-
ing the vehicle
– are appointed to drive the vehicle by the entrepreneur
The vehicle must meet the applicable national directives
when operated on public roads.
The machine is only suitable for use on the types of surfac-
es specified in the operating instructions.
 Industrial floor
 Screed
 Concrete
 Asphalt
 Industrial floor
 Screed
 Concrete
 Paving stones
– Wet cleaning
The appliance is used for the wet cleaning of level floors.
It can be easily adjusted to the cleaning task by setting a
cleaning program and the water quantity.
The side scrubbing deck conveys the waste into the mid-
dle where it is taken up by the counter-rotating brushes.
A suction blower generates vacuum pressure and suc-
tions the detergent solution into the waste water tank.
– Sweep
If the device is to be used mainly for sweeping, then the
installation of a special roller brush and conversion to a
side brushes deck are to be recommended.
Note: Have the conversion to the side brushes deck
carried out by Kärcher Customer Service, because pa-
rameters in the control must be changed.
The side brushes deck transport the waste into the mid-
dle. The two counter-rotating brushes convey the waste
into the waste container. A suction blower prevents
dust from escaping.
If the waste container is full, then it can be emptied hy-
draulically from the driver seat.
Any use other than the one intended and described above
is prohibited. The user is liable for any hazards arising from
incorrect use.
The use for any other purposes than described in these in-
structions is prohibited.
Transporting persons on the device is not permitted.
The appliance may not be modified.
Do not use the device at elevations of over 2000 m.
– Never vacuum up explosive liquids, combustible gases
or undiluted acids and solvents. This includes petrol,
paint thinner or heating oil which can generate explo-
sive fumes or mixtures upon contact with the suction
air. Acetone, undiluted acids and solvents must also be
avoided as they can harm the materials on the ma-
chine.
– Never sweep/vacuum up reactive metal dusts (e.g. al-
uminium, magnesium, zinc), as they form explosive
gases when they come in contact with highly alkaline or
acidic detergents.
– Do not sweep/vacuum up any burning or glowing ob-
jects.
– The machine may not be used or stored in hazardous
areas. It is not allowed to use the appliance in hazard-
ous locations.
– It is prohibited to drive with the waste container (hop-
per) raised.
– Do not use the appliance without an overhead guard in
areas where the operator might get hit by falling ob-
jects.
– Do not clean without installed brushes, sealing lips or
suction lips.
2 Information about the vehicle
2.1 Proper use
2.1.1 Suitable floors for cleaning as a wet
cleaning device
2.1.2 Suitable floorings for cleaning as a
sweeper vacuum
2.1.3 Function
2.1.4 Foreseeable misuse
3EN