MAINTENANCE
Before servicing the Power Washer disconnect the
plug from the electrical power supply, and shut off
the water supply.
1.
Changing the oil
The oil should
be
changed once a year, or after
approx. 400 hours of operation. First the oil-level
sight glass
(8)
is
removed. The old oil
is
then
drained and 0.2 liter of new oil (15W-40, Order
No.
6.288-050 from service depots)
is
poured
in.
2.
Repairs
Any repairs that may
be
necessary should
be
en-
trusted to authorized service technicians. Please
send the unit with its accessories to the nearest
authorized service depot.
3.
Protection against Freezing
The Power Washer must
be
stored
in
such a way
as to protect it from freezing.
Do
not store the Power Washer outdoors
where the temperature
is
below 32°
F.
4.
High-pressure hose
The high-pressure hose must conform to safety
regulations, and must
be
marked with the max-
imum permissible operating pressure, the date of
manufacture and the name of the manufacturer.
Karcher high-pressure hoses meet these require-
ments.
5.
Safety device
If
the pressure
is
excessive, the relief valve
on
the
pump opens a bypass on the pump intake side;
the factory setting must not be changed.
6. Cleaning changeover nozzle
Disconnect
th
e spray wand
(3)
from the trigger
gun
(2)
.
Remove dirt from nozzle bore with needle and
rinse with water from nozzle end.
In
the event of
stubborn dirt, disassemble changeover nozzle.
7.
Dismantling the changeover nozzle
Lift out the clip
(1
),
using a narrow screwdriver.
Pull off the cover
(2).
Unscrew the sleeve nut (3), using a 13/16" open-
ended wrench; use a
11
/16" open-ended spanner
to hold the end of the changeover nozzle.
Remove the sleeve nut; when doing this, hold the
spray wand with the nozzle uppermost to prevent
the ball
(4)
from becoming lost.
Press the nozzle tip
(5)
out of the sleeve nut
(4),
and clean
it.
Reassemble by proceeding
in
the reverse of the
above sequence.
TROUBLE SHOOTING
Symptom
Problem
Correction
1.
Device will not start 1. No electrical power supply available ChecK cable, plug, power socket and fuse
2.
Motor overheats Press trigger of gun;after approx. 2 minutes the thermal
protection switch will switch the motor back on
3.
Low voltage
4. Trigger not open Open trigger
5. Electrical defect Have device repaired by service depot
2.
Device does not come 1. Pump is sucking air Check water hose, turn on water supply
up to pressure 2. Water filter clogged Clean filter
3.
Pump not bled to remove air Switch off device, press trigger of gun, switch on
device while pressing the trigger; repeat
if
necessary
4. Pump or relief valve defective Have device repaired by service depot
3. Water jet irregular 1
. Nozzle clogged Clean nozzle
2.
Water supply inadequate Use device in suction operation with open container
3. Relief valve incorrectly set Have device repaired by service depot.
4.
Water jet cannot be
1.
Ball in changeover nozzle stuck Tap changeover nozzle lightly;
varied degrease the nozzle
5.
No intake of cleaning
1.
Suction filter clogged Clean filter
in
suction nozzle
agent
2.
Nozzle blocked Clean changeover nozzle
3,
Ball
in
cleaning agent non-return Disconnect suction hose (6), and insert a piece of thin wire into the
valve jammed intake aperture until the ball in the valve is freed; reassemble device
4.
Wrong nozzle setting Switch the changeover nozzle to low pressure
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