Care And Service - Kärcher HD 9/20-4 S Manual

If frost-free storage is not possible:
1. Drain the water.
2. Pump commonly available anti-freeze through the
device.
3. Allow the device for run for a maximum of 1 minute
until the pump and lines are empty.
Note
Use commonly available, Glycol-based vehicle anti-
freeze. Observe the handling instructions of the anti-
freeze manufacturer.

Care and service

DANGER
Inadvertently starting up device
Risk of injury, electric shock
Switch off the device immediately and unplug the mains
plug before performing work.
Note
Old oil may only be disposed of at designated collection
points. Please dispose of any old oil at these locations.
Polluting the environment with old oil is punishable by
law.
Safety inspection/maintenance contract
You can agree on regular safety inspections or close a
maintenance contract with your dealer. Please seek ad-
vice on this.
Maintenance intervals
Each time before use
 Check the mains cable for damage.
Have a damaged cable replaced immediately by the
authorised Customer Service or a qualified electri-
cian.
 Check the high-pressure hose for damage.
Immediately replace a damaged high-pressure
hose.
 Check the device for leaks.
3 drops of water per minute are permissible. Contact
Customer Service in the case of more serious leaks.
Weekly
 Check the oil level. Contact Customer Service im-
mediately if the oil is milky (water in oil).
 Clean the fine filter.
Illustration K
Filter housing
1
Fine filter
2
O-ring
3
Handle, folding
4
Connection nozzle
5
Union nut
6
a Unscrew the union nut.
b Pull out the connection nozzle.
c Pull the fine filter out of the filter housing by the
folding handle.
d Rinse the fine filter with clear water or blow it out
with compressed air.
e Check the O-ring on the fine filter and replace if
necessary.
f Insert the fine filter into the filter housing.
g Check the O-ring on the connection nozzle and
replace if necessary.
h Attach the connection nozzle.
i Screw on the union nut and hand-tighten.
Every 500 operating hours, at least annually
 Have the device serviced by Customer Service.
 Change the oil in the high-pressure pump:
a Tilt the device to the rear and set it down.
b Place a catch pan underneath the oil drain screw
to collect the engine oil.
Illustration L
Clip
1
O-ring
2
Plugs
3
Drainage channel
4
c Pull the clip out downwards.
d Pull out the plug.
e Drain the oil into a suitable collection container.
f Check the O-ring on the plug, replace if neces-
sary.
g Insert the plug and secure it with the clip.
h Wipe off any oil remaining in the drainage chan-
nel.
i Erect the device.
j Unscrew the fastening screw on the device hood.
k Remove the device hood.
l Remove the oil tank cap.
Illustration D
Cover
1
Oil tank
2
m Fill in new oil slowly so that air bubbles can es-
cape. See the "Technical data" section for the oil
volume and type.
n Replace the oil tank cap.
o Replace and secure the device hood.
p Operate the device for 5 minutes and then check
the oil level again.
Maintenance work
Replacing the high-pressure hose with an
WARNING
Risk of injury
The hose reel may turn very fast unexpectedly if it is re-
leased.
Carefully follow the steps below and secure the hose
reel as described.
Note
Only high-pressure hoses in the "Ultra Guard" version
are suitable for this device.
1. Lift off the cover on the hose reel with a screwdriver.
Illustration M
Cover
1
2. Completely unroll the high-pressure hose from the
hose reel.
3. Insert a 10 mm Allen key through the hexagonal
opening in the casing. Insert the key until the hose
reel is blocked.
Illustration N
Opening, hexagonal
1
Illustration O
Allen key SW 10
1
English
automatic hose reel
21