Operation With Detergent; High Pressure Operation - Kärcher HD 4/9 C Manual

Danger
Long hours of using the appliance can
cause circulation problems in the
hands on account of vibrations.
It is not possible to specify a generally
valid operation time, since this de-
pends on several factors:
Proneness to blood circulation defi-
–
ciencies (cold, numb fingers).
Low ambient temperature. Wear
–
warm gloves to protect hands.
A firm grip impedes blood circula-
–
tion.
Continuous operation is worse than
–
an operation interrupted by pauses.
In case of regular, long-term operation of
the device and in case of repeated occur-
rence of the symptoms (e.g. cold, numb
fingers) please consult a physician.
CAUTION
Clean engines only at places with cor-
responding oil separators (environ-
mental safety).

High pressure operation

The appliance can be operated in a
vertical or horizontal position.
NOTICE
The appliance is equipped with a pres-
sure switch. The motor starts up only
when the lever of the pistol is pulled.
Device with hose drum:

Roll off the high pressure hose to-
tally from the hose drum.
Set the appliance switch to "I".

Unlock the trigger gun and pull the

lever of the gun.
Select spray type
Close the hand spray gun.

Turn the casing of the nozzle till the

desired symbol matches the mark-
ing.
10
High pressure circular
spray (0°) for specially
stubborn dirt
Flat low pressure spray
(CHEM) for operating using
detergents or cleaning at
low pressure.
High pressure flat spray
(25°) for large dirt areas

Operation with detergent

WARNING
Unsuitable detergents can cause dam-
age to the appliance and to the object
to be cleaned. Use only those deter-
gents that have been approved by
Kärcher. Observe the dosage and oth-
er instructions provided with these de-
tergents. For considerate treatment of
the environment use detergent eco-
nomically.
Follow the safety instructions for using
detergents.
Kärcher detergents ensure smooth
functioning. Please consult us or ask
for our catalogue or our detergent in-
formation sheets.
Take out detergent suck hose.

Adjust the suction volume of the de-

tergent solution at the detergent fil-
ter.
Suspend end of suction hose in a

container filled with detergent.
Set nozzle to "CHEM".

Recommended cleaning method
Spray the detergent sparingly on

the dry surface and allow it to react,
but not to dry.
Spray off loosened dirt with the

high-pressure ray.
– 7
EN