Operation - Kärcher B 90 R Handbuch

 Place the boards on the edge of the pal-
let. Place the boards in such a way that
they lie in front of the four wheels of the
machine. Fasten the boards with
screws.
 Slide the four support beams included
in the packaging under the ramp.
 Remove the wooden bars in front of the
wheels.
Figure 5, see cover page
 Pull the brake lever and push the appli-
ance down the ramp with the level
pulled.
or
 Release emergency-stop button by
turning.
 Set main switch to "1".
 Press the drive direction switch and
slowly move the machine down from
the ramp.
 Set main switch back to "0".
Install cleaning head
The procedure for changing the cleaning
head is described in the chapter "Mainte-
nance Tasks".
Note
On some models, the cleaning head is al-
ready installed.
Installing the Brushes
The installation of the brushes is described
in the chapter "Maintenance Tasks".
Installing the Vacuum Bar
Figure 6, see cover page
 Insert the vacuum bar into the vacuum
bar suspension in such a manner that
the profiled sheet is positioned above
the suspension.
 Tighten the wing nuts.
 Insert the suction hose.

Operation

Danger
Risk of injuries. Never use the unit without
protective roof in areas where the opera-
tors can be hit by dropping objects.
Note
Press emergency-stop switch to immedi-
ately switch off all functions of the machine.
Check immobilizing brake
Danger
Danger of accident. The immobilizing brake
must always be checked first on an even
surface before starting the machine.
 Take the seating position.
 Release emergency-stop button by
turning.
 Set main switch to "1".
 Select a direction of travel.
 Gently depress drive pedal.
 The brake must get released and you
must be able to hear it (the control lamp
for immobilizing brake on the console
switches off). The machine must roll
slightly on a plane surface. When the
pedal is released, the brake falls in in an
audible manner. Switch off the ma-
chine and call the aftersales service if
the above-mentioned events do not oc-
cur.
Driving
Danger
Danger of accident. If the machine does not
brake, then proceed as follows:
 If the device does not come to a halt on
a ramp with a gradient of 2% when you
release the drive pedal, then the emer-
gency-stop button may be pressed for
safety reasons only if the mechanical
functioning of the immobilizing brake
has been checked properly before com-
missioning the device.
 Switch off the machine only after it
comes to a complete halt (on an even
surface) and call up the aftersales serv-
ice!
 Further, follow all warning instructions
for braking.
Danger
Danger of tipping if gradient is too high.
 The gradient in the direction of travel
should not exceed 10%.
Danger of tipping when driving round
bends at high speed.
Danger of slipping on wet floors.
 Drive slowly when cornering.
Danger of tipping on unstable ground.
 Only use the machine on sound surfac-
es.
Danger of tipping with excessive sideways
tilt.
 The gradient perpendicular to the direc-
tion of travel should not exceed 10%.
Driving
 Release emergency-stop button by
turning.
 Sit on the seat and set main switch to
"1".
 Set the drive direction using the drive
direction button at the operator console.
 Determine the driving speed by press-
ing the drive pedal.
 Stop the machine: Release the drive
pedal.
Note
The drive direction can also be changed
during the drive. Thus, very blunt edges
can be polished by moving forward and
backward a few times.
Display
When switching on the display, the follow-
ing messages will appear in sequence:
„ < SELFTEST >": The control conducts
–
a self-test.
„Water E-----F" (model Adv): Water lev-
–
el in the fresh water tank (lasts for 6
seconds).
„OpHrs xxxxxhxxm+" (Classic model):
Operating hours (lasts for 6 seconds)
"Battery: E-----F": Charging status of
–
battery.
3
-
EN
Overload
In case of overloading, the drive motor au-
tomatically switches off after a certain peri-
od. A fault message is displayed on the
console. The concerned unit gets switched
off if the controls get overheated.
 Allow machine to cool down at least for
15 minutes.
 Turn the main switch to "0" and turn it
back to "1".
Filling in detergents
Detergent
Warning
Risk of damage. Only use the recommend-
ed detergents. With respect to different de-
tergents the operator bears the increased
risk regarding the operational safety and
danger of accident.
Only use detergents that are free from sol-
vents, hydrochloric acid and hydrofluoric
acid.
Follow the safety instructions for using de-
tergents.
Note
Do not use highly foaming detergents.
Recommended detergents:
Application
Routine cleaning of all wa-
ter resistant floors
Routine cleaning of glossy
surfaces (e.g. granite)
Routine cleaning and ba-
sic cleaning of industrial
floors
Routine cleaning and ba-
sic cleaning of fine stone-
ware tiles
Routine cleaning of tiles in
sanitary areas
Cleaning and disinfection
in sanitary areas
Removal of coating from
all alkali-resistant floors
(e.g. PVC)
Removal of coating from li-
noleum floors
Fresh water
 Open the cover of the fresh water reser-
voir.
 Fill fresh water (max. 60 °C) until 15 mm
below the upper edge of the tank.
 Pour in detergent.
Note
If detergent is added to the cleaning deter-
gent tank first, followed by water, there
could be a lot of foam.
 Close the cover of the fresh water res-
ervoir.
Note
Fill up the fresh water tank completely be-
fore starting up the machine to ventilate the
water supply system.
Detergent
RM 746
RM 780
RM 755 es
RM 69 ASF
RM 753
RM 751
RM 732
RM 752
RM 754
17