Water Supply; Start Up; Working With Detergent - Kärcher K 3.80 MD Manual

Water supply

Warning
According to the applicable regula-
tions, the appliance must never be
used on the drinking water supply with-
out a system separator. Use a suitable
system separator manufactured by KÄRCHER;
or, as an alternative, a system separator as per
EN 12729 Type BA. Water flowing through a sys-
tem separator is considered non-drinkable.
Caution
Always connect the system separator to the wa-
ter supply, never directly to the appliance!
Note: Impurities in the water can damage the
high-pressure pump and accessories. For pro-
tection, the use of the KÄRCHER water filter (op-
tional accessory, order no. 4.730-059) is
recommended.
Water supply from mains
Observe regulations of water supplier.
For connection values, see type plate/technical
data.

Use a fibre-reinforced water hose (not in-
cluded) with a standard coupling. (Minimum
diameter 1/2 inch (13 mm), minimum length
7.5 m).

Screw the coupling element (supplied) to the
water connection on the appliance.

Push the water supply hose onto the cou-
pling unit, then connect it to the water supply.

Start up

Caution
Dry runs lasting longer than two minutes lead to
damages to the high pressure pump. If the appli-
ance does not build up pressure within two min-
utes, switch it off and proceed as instructed in
the Chapter "Troubleshooting".

Connect the high pressure hose to the high
pressure connection of the appliance.

Push the spray lance into the trigger gun and
fasten it by turning it through 90°.

Completely open the water tap.

Insert the mains plug into the socket.

Turn on the appliance "I/ON".
Danger
The trigger gun is subjected to a recoil force
when the water jet is discharged. Make sure that
you have a firm footing and are also holding the
trigger gun and spray lance firmly.
Caution
Prior to cleaning, make sure that the high pres-
sure is placed safely on level ground. Wear pro-
tective goggles and protective clothing during the
cleaning process.

Unlock the lever on the trigger gun.

Pull on the lever of the trigger gun; the device
will switch on.
Note: Release the lever of the trigger gun; the
device will switch off again. High pressure re-
mains in the system.
Spray lance with pressure regulation
Carrying out the most common cleaning tasks.
The work pressure can be stagelessly regulated
between "Min" and "Max".

Release the lever on the trigger gun.

Turn the spray lance to the desired position.
Note: Suitable for working with detergent; for
this, turn the spray lance to the "Mix" position.
Spray lance with Dirtblaster
For particularly dirty items or areas.
Caution
Car tyres, paint or sensitive surfaces such as
wood should not be cleaned with the dirt blaster,
as there is a risk of damage.
– Not suitable for use with detergents.

Working with detergent

Please use exclusively KÄRCHER detergents
and care products to carry out the respective
cleaning task, as these were specifically devel-
opped for your appliance. The use of other deter-
gents and care products may lead to premature
wear and can invalidate your warranty claims.
Please obtain information at your local dealer or
request information directly from KÄRCHER.

Fill the detergent solution in the detergent
tank (observe dosage instructions on the
packaging of the detergent).

Use spray lance with pressure regulation
(Vario Power).

Turn the spray lance to "Mix" position.
Note: This will mix the detergent with the wa-
ter stream.
- 4
EN
Operation
13