Advertisement
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
the
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.
Rel ief 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
10
Advertisement
