– 7
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.
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.
Have the maintenance of the device
performed by the customer service.
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.
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.
–
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.
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.
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.
Before each use
Weekly
HD 9/20-4 only:
Every 500 operating hours, at least
annually
Oil change
Troubleshooting
Appliance is not running
Pressure does not build up in the
appliance
Pump leaky
24
EN
Summary of Contents for HD 7/16-4 M
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Page 160: ...5 K RCHER EN 12729 BA 7 5 1 4 440 270 0 4 730 012 0 10 160 RU...
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Page 310: ...5 K RCHER EN 12729 BA 7 5 1 4 440 270 0 4 730 012 0 10 I 310 UK...
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