Kruger KF50B, Manual, Page: 34 / 40

34
VERY DIRTY SURFACES
Scrubbing and drying in various passes.
Prepare the machine as previously described.
First set of operations:
Wash the floor as described in paragraph 6.13, wi-
thout drying the floor
Allow the detergent solution to work on the dirty
floor according to what is indicated in the informa-
tion relative to the detergent used.
Second set of operations:
Proceed as explained in the previous “Direct Wa-
shing” paragraph (6.14.3) to also proceed with
drying the floor.
Never use the machine without the detergent
solution: the floor might be damaged.
6.14.5 POST-SCRUBBING OPERATIONS
Close the detergent solution outlet.
Lift the brush unit and turn off the brush motor.
After having completely dried any traces of water
on the surface, wait a few seconds and then lift the
squeegee and turn off the suction motor.
Move to a suitable location to drain the tanks;
empty and clean the tanks (as described in 6.11).
Turn off the machine using the key and remove it
from the control panel.
If necessary, charge the battery (see the relative
section).
7. MAINTENANCE INFORMATION
Turn the key, remove it from the control panel
and disconnect the battery from the machine wi-
ring.
☞
All work on the electrical system as well as all
maintenance and repair operations (especially
those not explicitly described in this manual)
should be carried out only by authorized service
centers or by specialized technical personnel who
are experts in the sector and in the pertinent safety
regulations.
Performing regular maintenance on the machine,
and carefully following the manufacturer’s instruc-
tions, is the best guarantee for obtaining the best
performances and extended machine service life.
7.1 TANKS
Drain the two tanks as described in the relative
sections.
Remove any solid dirt by filling and draining the
tanks until all dirt has been eliminated: use a wa-
shing hose or similar tool to do this.
Water hotter than 50°, a high-pressure
cleaner or excessively powerful sprays may
damage the tanks and the machine.
Leave the plugs of the tanks open (only while the
machine is not being used) so that they can dry
and thus prevent the formation of foul odors.
7.2 SUCTION HOSE
Detach the suction hose from the squeegee (Photo
M - 3).
Now you can wash the hose and remove any ob-
structions.
Firmly insert the hose on the squeegee body.
7.3 SQUEEGEE
Do not handle the squeegee with bare hands:
wear gloves and any safety clothing needed to
carry out the operation.
Detach the squeegee from the machine and clean
it under running water using a sponge or a brush.
Check the efficiency and the wear on the strips in
contact with the floor. They are designed to scrape
the film of detergent and water on the floor and to
isolate that portion of the surface to enhance the
vacuum of the suction motor: this ensures that the
machine will dry very efficiently. Working constan-
tly in this manner tends to round or to deteriorate
the sharp edge of the strip, thus reducing drying
efficiently. This is why the squeegee strips must
be replaced.
To replace the worn blades, follow the instructions
in the relative section. Turn the blades around to
wear down the other sharp corners or to install
new ones.
7.4 ACCESSORIES
Remove and clean the brushes or the scraper disks.
To avoid damaging the floor and the machine,
carefully check if foreign matter, such as metallic
parts, screws, chips, cords or similar items, has
become jammed.
Check that the brushes are flat as they work on
the surface (check for any irregular wear on the
brushes or on the abrasive disks). If necessary,
adjust the slant of the action on the floor.
Use only the accessories recommended by the ma-
nufacturer: other products may reduce operating
safety.
7.5 MACHINE BODY
Use a sponge or a soft cloth to clean the exterior of
the machine and, if necessary, a soft brush to elimi-
nate tough dirt. The machine’s shockproof surface
is rough to make it harder to see scratches caused
during use. However, this does not make it easier
to remove tough stains on the surface. It is prohi-
bited to use steam machines, hoses with running
water and high-pressure cleaners.
7.6 BATTERIES
PB-Acid batteries
Carry out maintenance operations in accordance
with the manufacturer’s instructions and with all
the other instructions provided in this manual.
Exposing the element plates (not completely im-
mersed in the acid solution) will lead to rapid oxida-
tion and irreparably reduce the element’s operating
capacities.