– 7
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.
Note
Please dispose off used oil only in the col-
lection points provided for them. Please
hand over old oil, if any, only at such plac-
es. Polluting the environment with used oil
is a punishable offence.
You can sign with your dealer a contract for
regular safety inspection or even sign a
maintenance contract. Please take advice
on this matter.
Check connection cable for damages
(risk of electrical shock); get the dam-
aged connection cable replaced imme-
diately by an authorised customer
service 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.
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.
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.
Remove the lid of the oil container.
Tilt the appliance forward.
Drain the oil in a collection basin.
Fill in new oil slowly; air bubbles should
go out.
Attach the lid of the oil container.
Fasten the device hood.
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.
Maintenance and care
Safety inspection/ maintenance
contract
Before each use
Weekly
HD 9/20-4 only:
monthly or after 500 operating
hours
Oil change
Troubleshooting
25
EN
