Maintenance And Care; Faults - Kärcher BR 90 R User Manual And Service Instructions

BD model
Remove brushes from the brush head.

Maintenance and care

Danger
Risk of injury! Before carrying out any tasks
on the machine, set the main key to "0" and
remove it. Pull out the battery plug.
Note
Suction turbine will continue to run for a
while after switch-off. Carry out mainte-
nance tasks only after the suction turbine
has come to a halt.
Drain and dispose of the dirt water and
the residual fresh water.
Maintenance schedule
After each operation
Warning
Risk of damage. Do not wash down the ap-
pliance with water and do not use aggres-
sive detergents.
Drain off dirt water.
Rinse the dirt water tank with clear wa-
ter.
Check the fluff filter, clean if required
Only BR model: Remove bulk waste
container and empty it.
Clean the outside of the appliance with
a damp cloth which has been soaked in
mild detergent.
Clean the vacuum lips and the wiping
lips, check for wear and replace if re-
quired.
Check the brushes for wear, replace if
required.
Charge battery.
Monthly
Check battery pole for oxidation; brush
it if required and lubricate it using pole
grease. Ensure that the connection ca-
ble sits firmly.
Clean the seals between dirt water res-
ervoir and cover and check for tight-
ness, replace if required.
Check the function of the immobilizing
brake.
Check the acid density of the cells if the
batteries are not maintenance-free bat-
teries.
Clean the brush tunnel (only BR model).
Yearly
Have the prescribed inspection carried
out by the customer service.
Maintenance Works
Maintenance contract
To ensure a reliable operation of the appli-
ance maintenance contracts can be con-
cluded with the competent Kärcher sales
office.
Replacing the vacuum lips
Remove the vacuum bar.
Loosen crossh-handles.
Remove the plastic parts.
Remove the vacuum lips.
Insert new vacuum lips.
Insert the plastic parts.
Tighten the cross-handles.
Replacing the brush rollers
Release the wing nuts.
Remove bearing lid.
Take out the brush roller, insert a new
one (pay attention to the hexagonal in-
take of the brush rollers).
Place bearing lid.
Tighten the wing nuts.
Repeat process on the opposite side.
Replacing the Disk Brushes
Raise the disk brushes.
Turn the disk brushes by approximately
45°.
Remove the disk brushes at the bottom.
Insert the new disk brushes in reverse
sequence.
Frost protection
In case of danger of frost:
Empty the fresh and dirt water reser-
voirs.
Store the appliance in a frost-protected
room.

Faults

Danger
Risk of injury! Before carrying out any tasks
on the machine, set the main key to "0" and
remove it. Pull out the battery plug.
Drain and dispose of the dirt water and
the residual fresh water.
In case of faults that cannot be remedied
using the table below please contact the
customer service.
Replace fuses
The operator may only replace the following
vehicle flat fuses having the following val-
ues:
– 7.5A (F1) – Control and emergency
power supply.
– 30A (F4) – Supply to stroke and acces-
sories module.
Note
Defective fuses (F2, f3) should only be re-
placed by the service center. If these fuses
are defective, then customer service center
has to check the usage conditions and the
entire control system.
The control unit is located below the operat-
ing panel. To access the fuses the cover on
the left side of the foot compartment must
be removed in advance.
Turn out the fastening screws at the up-
per end of the cover.
Remove cover.
Replace fuse.
Replace cover.
Note
The population of fuses is displayed on the
inner side of the cover.
Fault indication
The display shows the existing faults at in-
tervals of 4 seconds (example:
Fault scrubbing
funktion H1/022
If the faults continue to be displayed on the
console even after 4 seconds, then proceed
as follows:
Set main switch to "0".
Wait till the text on the display has dis-
appeared.
Set main switch to "1".
Carry out the troubleshooting measures
in the given sequence only if the fault
occurs again. The key switch must be in
position "0" and the battery plug must
have been pulled out.
If the fault cannot be repaired, call cus-
tomer service and mention the fault
code(s) (H1/022 in the example).
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English