Start Up; High Pressure Operation; Operation With Detergent - Kärcher K 4.86 M Operating Instructions Manual

Use the Kärcher water filter to protect
the HP pump and accessories (special
accessories, order no. 4.730-059). This
filter removes dirt from incoming water.
As the standard coupling system is not
suitable for use in suction mode, the
Kärcher suction hose with integrated fil-
ter should be used instead (special ac-
cessory, order no. 4.440-238) and
suspended inside the water butt.
Remove air from appliance before oper-
ation: Switch on the appliance when the
HP hose is not connected and run it until
the water which discharges from the HP
outlet is free of bubbles. Switch off ap-
pliance and connect HP hose.
Note: Fill suction hose with water before
use, this will help ventilate the pump of
air.

Start up

Screw HP hose on to HP outlet on appli-
ance.
Push the appropriate spray lance on to
the trigger gun and fasten it by turning it
to the right through 90°.
Open tap.
Plug in mains plug.
Set main switch to "I/ON".
Press safety catch on the trigger gun to
release it and pull lever.

High pressure operation

Risk of injury
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.
6
English
Spray lance with pressure regulation
Carrying out the most common cleaning
tasks. The work pressure can be stageless-
ly regulated between "Min" and "Max".
Release the lever on the trigger gun.
Turn the spray lance to the desired po-
sition.
Spray lance with dirt blaster
For strong contaminations.

Operation with detergent

Note:
Detergent can only be added when the ap-
pliance is being operated in low pressure
mode.
All washing brushes supplied by Kärcher
are designed for use with detergents.
Use spray lance with pressure regula-
tion (Vario Power).
Turn the spray lance to "Mix" position -
low pressure.
DT suction infeed from DT tank
During low pressure operation, deter-
gent is automatically drawn in from the
filled detergent tank.
Fill the detergent reservoir with, deter-
gent tablet and water or detergent con-
centrate and water (observe metering
recommendations on the packaging la-
bel of the detergent).
Dosage happens through the DT meter-
ing regulator.
Recommended Cleaning Method
1 Spray a small dose of the detergent on
the dry surface, and allow it to react
(make sure the detergent does not dry
up).
2 Wash off the loosened dirt using the
high-pressure jet.