Water Supply - Kärcher K 3.700 Originalbetriebsanleitung

 Install the fixating plate and secure it
using 2 screws.
 Press the connecting fitting from the
short high pressure hose into the brass
intake, secure with clamps.
Note: Make sure the connection nipple is
aligned correctly.
Connect the high pressure hose to the
hand spray gun
Illustration
 Push the high pressure hose into the
trigger gun until it locks audibly.
Note: Make sure the connection nipple is
aligned correctly.
 Check the secure connection by pulling
on the high pressure hose.

Water supply

Warning
According to the applicable regula-
tions, the appliance must never be
used on the drinking water supply
without 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 system separator is con-
sidered non-drinkable.
Caution
Always connect the system separator to the
water supply, never directly to the appliance!
Note: Impurities in the water can damage
the high-pressure pump and accessories.
For protection, the use of the KÄRCHER
water filter (optional accessory, order no.
4.730-059) is recommended.
Water supply from mains
Observe regulations of water supplier.
For connection values, see type plate/tech-
nical data.
 Use a fibre-reinforced water hose (not
included) with a standard coupling.
(Minimum diameter 1/2 inch (13 mm),
minimum length 7.5 m).
Illustration
 Screw the coupling element to the wa-
ter connection on the appliance.
18
 Push the water supply hose onto the
coupling unit, then connect it to the wa-
ter supply.
Drawing in water from open reservoirs
This high-pressure cleaner is suited to work
with the KÄRCHER suction hose with back-
flow valve (Optional accessory, order no.
4.440-238) to draw in surface water, e.g.
from water butts or ponds (see specifica-
tions for max. suction height).
 Fill the KÄRCHER suction hose with
backflow valve with water, screw to wa-
ter supply and hang into the water butt.
 Appliance ventilation: Switch the appli-
ance on with the high-pressure hose
detached and operate (max. 2 minutes)
until the water exits the high-pressure
connection without bubbles. Switch off
appliance and reconnect high-pressure
hose.
Caution
Dry runs lasting longer than two minutes
lead to damages to the high pressure
pump. If the appliance does not build up
pressure within two minutes, switch it off
and proceed as instructed in the Chapter
"Troubleshooting".
Illustration
 Push the spray lance into the trigger
gun and fasten it by turning it through
90°.
Illustration
 Unwind the high pressure hose from the
hose drum. Hold on to the transport
handle during this procedure.
Note: If the hand crank is in its secured
position, fold it up first.
 Completely open the water tap.
 Insert the mains plug into the socket.
 Turn on the appliance "I/ON".
– 9
EN
Start up