Maintenance Intervals - Kärcher HD 9/20-4 S Bedienungsanleitung

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 I
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 J
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.
20
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 C
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
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 K
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 L
Opening, hexagonal
1
Illustration M
Allen key SW 10
1
4. Unscrew the 2 screws.
Illustration N
Hose stopper
1
High-pressure hose
2
Screw
3
5. Remove the hose stopper from the high-pressure
hose.
6. Pull out the locking hook.
Illustration O
Hose connection
1
Washers
2
High-pressure hose.
3
Locking hook
4
7. Pull the high-pressure hose out of the hose connection.
8. Insert the new high-pressure hose through the hose
guide rollers and insert it into the hose connection.
Observe the direction of rotation of the hose reel.
Illustration P
English