Kärcher K 3.88 MD, Manual

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7

Danger
Turn off the appliance and remove the mains
plug prior to any care and maintenance work.
The appliance is maintenance-free.
Prior to longer periods of storage, e.g. in the
winter:
Î
Completely drain all water from the appli-
ance: Switch the appliance on with de-
tached high-pressure hose and detached
water supply (max. 1 minute) and wait,
until no more water exits at the high-pres-
sure connection. Turn off the appliance.
Î
Remove filter from suction hose for deter-
gent and clean under running water.
Î Clean water filter.
Î
Pull out the sieve in the water connection
using flat-nose pliers and clean under run-
ning water.
Caution
Protect the appliance and its accessories
against frost.
The appliance and its accessories can get de-
stroyed through frost if there are any water
residues in them. To avoid damage to them:
Î
Store the appliance and the entire acces-
sories in a frost-safe room.
Use only original KÄRCHER spare parts. You
will find a list of spare parts at the end of these
operating instructions.
You can rectify minor faults yourself with the
help of the following overview.
If in doubt, please consult the authorized cus-
tomer service.

Danger
Turn off the appliance and remove the mains
plug prior to any care and maintenance work.
Repair works may only be performed by the
authorized customer service.
Î
Pull on the lever of the trigger gun; the de-
vice will switch on.
Î Check whether the voltage indicated on
the type plate corresponds to the voltage
of the mains supply.
Î Check the mains connection cable for
damages.
Î Check setting at the spray lance.
Î
Appliance ventilation: Switch the appli-
ance on with the high-pressure hose de-
tached and operate (max. 2 minutes) until
the water exits the high-pressure connec-
tion without bubbles. Switch off appliance
and reconnect high-pressure hose.
Î
Check the water supply.
Î
Check and clean the water filter.
Cause: Voltage reduction due to weak mains
supply or when using an extension cable
.
Î
When switching on, first pull the lever of
the trigger gun and then switch the appli-
ance switch to "I/ON".
Î
Clean high-pressure nozzle: Remove dirt
and debris from the nozzle bore, using a
needle and rinse through with water from
the front.
Î Check water flow quantity.
Î
Slight leakage from the appliance pump is
normal. If the leakage increases contact
the authorized customer service.
Î
Use spray lance with pressure regulation
(Vario Power).
Turn the spray lance to "Mix" position.
Î
Clean the detergent suction hose filter.
Î Check the detergent suction hose for
kinks.
Maintenance and care
Maintenance
Storage
Frost protection
Spare parts
Troubleshooting
Appliance is not running
Pressure does not build up in the appli-
ance
Appliance does not start, motor hums
Strong pressure fluctuations
Appliance is leaking
No detergent infeed
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