Troubleshooting - Kärcher HD 6/11-4 M Handbuch

Before each use
 Check connection cable for damages
(risk of electrical shock); get the dam-
aged connection cable replaced imme-
diately by an authorised customer ser-
vice person/ electrician.
 Check the high pressure hose for dam-
ages (risk of bursting).
Please arrange for the immediate ex-
change of a damaged high-pressure
hose.
 Check appliance (pump) for leaks.
3 drops per minute are permitted and
can come out from the lower side of the
appliance. Call Customer Service if
there is heavy leakage.
 Check oil level Please contact Custom-
er Service immediately if the oil is milky
(water in oil).
 Clean the sieve in the water connection.
 Clean filter at the detergent suck hose.
HD 9/20-4 only:
Clean the fine filter.
 Unpressurize the appliance.
 Unscrew the fastening screws of the
device hood; remove the device hood.
 Unscrew lid with filter.
 Clean the filter with clean water or com-
pressed air.
 Reinstall in reverse sequence.
Every 500 operating hours, at least
 Have the maintenance of the device
performed by the customer service.
 Oil change.
Oil change
Note:
See "Specifications" for oil volume and
type.
 Unscrew the fastening screws of the
device hood; remove the device hood.
 Remove the lid of the oil container.
 Tilt the appliance forward.
 Drain the oil in a collection basin.
24
Weekly
annually
 Fill in new oil slowly; air bubbles should
go out.
 Attach the lid of the oil container.
 Fasten the device hood.

Troubleshooting

DANGER
Risk of injury by inadvertent startup of ap-
pliance and electrical shock.
– Prior to all work on the appliance,
switch off the appliance and pull the
power plug.
– Get the electrical components checked
and repaired only by authorised cus-
tomer service persons.
– Contact an authorised customer service
person in case of problems not men-
tioned in this chapter or if you are in
doubt or when you have been explicitly
asked to do so.
Appliance is not running
 Check connection cable for damages.
 Check the supply voltage.
 Turn device switch on "0" and let engine
cool off for min. 5 minutes.
If malfunction still occurs, have device
checked by customer service.
 Call Customer Service in case of elec-
trical defects.
Pressure does not build up in the
 Set nozzle to "High pressure".
 Clean the nozzle.
 Replace the nozzle.
 Deaerate the appliance (see "Start-up")
 Check water supply level (refer to tech-
nical data).
 Clean the sieve in the water connection.
 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.
– 7
EN
appliance
Pump leaky