Kärcher HD 10/23-4 S, Manual

Page: 21 / 264

– 7
 Oil change.
Note
See "Technical Details" for details of oil
quantity and type.
 Unscrew the fastening screws of the
device hood; remove the device hood.
 Turn out the oil drain screw at the front
on the motor casing.
 Drain the oil in a collection basin.
 Turn out the oil drain screw.
 Fill in new oil slowly; air bubbles should
go out.
 Attach the lid of the oil container.
 Fasten the device hood.
 Empty and clean the detergent tank.
Pull out the locking cap for the deter-
gent tank along with the suction hose.
Lay the device on the reverse.
Empty and clean the detergent tank.

Danger
Risk of injury by inadvertent startup of ap-
pliance and electrical shock.
First pull out the plug from the mains before
carrying out any tasks on the machine.
Get the electrical components checked and
repaired only by authorised customer ser-
vice persons.
Contact an authorised customer service
person in case of problems not mentioned
in this chapter or if you are in doubt or when
you have been explicitly asked to do so.
 Check connection cable for damages.
 Call Customer Service in case of elec-
trical defects.
 Install the high pressure nozzle.

Clean/ replace nozzle.

Clean the fine filter; replace it, if necessary.
 Deaerate the appliance (see "Start-up")
 Check water supply level (refer to tech-
nical data).
 Check all inlet pipes to the pump.
 Contact Customer Service if needed.
3 drops per minute are permitted and can
come out from the lower side of the appli-
ance. Call Customer Service if there is
heavy leakage.
 With stronger leak, have device
checked by customer service.
 Check suction pipes for water and de-
tergent and ensure that they are leak-
proof.
 Deaerate the appliance (see "Start-up")
 Clean the fine filter.
 Contact Customer Service if needed.
 Install the low pressure nozzle.
 Check/ clean detergent suction hose
with filter.
 Clean/ replace backflow valve in the
connection of the detergent suction
hose.
 Open or check/clean detergent dosing
valve.
 Clean the deaerating hole of the deter-
gent tank in the casing.

Contact Customer Service if needed.
monthly or after 500 operating
hours
Oil change
If required
Troubleshooting
Appliance is not running
Pressure does not build up in the
appliance
Pump leaky
Pump is vibrating
Detergent is not getting sucked in
21 EN