Kärcher HDS 9/20-4 M Bedienungsanleitung Seite 23

Care and maintenance
DANGER
Inadvertently starting up device, touching live com-
ponents
Risk of injury, electric shock
Switch off the device before performing any work on the
device.
Remove the mains plug.
1. Close the water inlet.
2. Open the high-pressure gun.
3. Switch on the pump with the power switch and let it
run for 5-10 seconds.
4. Close the high-pressure gun.
5. Set the power switch to "0".
6. Only pull the mains plug out of the socket only when
your hands are dry.
7. Remove the water connection.
8. Actuate the high-pressure gun until the device is
completely depressurised.
9. Lock the high-pressure gun by pushing the safety
latch forwards.
10. Allow the device to cool down.
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
Weekly
ATTENTION
Milky oil
Device damage
If the oil is milky, inform authorized Customer Service
immediately.
1. Clean the sieve in the water connection.
2. Clean the fine filter.
3. Clean the fuel strainer.
4. Check the oil level.
Monthly
1. Clean the filter on the detergent suction hose.
Every 500 operating hours, at least annually
1. Change the oil.
2. Have the device maintained by Customer Service.
Recurring every 5 years at the latest
1. Perform a pressure test according to the manufac-
turer's specifications.
Maintenance work
Mounting the replacement high-pressure hose
(HDS MXA/SXA only)
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 flat head
screwdriver.
Illustration M
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
Illustration O
4. Unscrew the 2 screws.
Illustration P
5. Remove the hose stopper from the high-pressure
hose.
6. Pull out the locking hook.
Illustration Q
7. Pull the high-pressure hose out of the hose connec-
tion.
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.
9. Insert the locking hook into the hose connection.
Illustration R
10. Check that all washers are behind the locking hook.
11. Fit the hose stopper to the other end of the high-
pressure hose. Distance to the end of the hose
about 1 m (to the high-pressure gun).
12. Connect the device to the water supply and power
supply, put it into operation and check the connec-
tion for leaks.
13. Tension the hose and keep it tensioned. Pull out the
Allen key while the hose is taut.
14. Unlock the hose reel by pulling on the high-pressure
hose and let the high-pressure hose slowly roll up.
Control the reeling speed by holding the hose.
15. Replace the cover.
Clean the sieve in the water connection
1. Remove the sieve.
2. Clean the sieve in water.
3. Install the sieve again.
Cleaning the fine filter
1. Depressurise the device.
2. Unscrew the fine filter on the pump head.
3. Dismantle the fine filter and take out the filter inlay.
4. Clean the filter inlay with clean water or compressed
air.
5. Assemble in the reverse order.
Cleaning the fuel sieve
1. Knock out the fuel sieve. Do not allow fuel to enter
the environment.
Clean the filter on the detergent suction hose
1. Pull out the detergent suction hose port.
2. Clean the filter in water.
3. Fit the filter again.
See the "Technical data" section for the oil filling quanti-
ty and type.
1. Provide a catch pan for approx. 1 litre of oil.
2. Lever out the retaining clip with a flat head screw-
driver and pull out the oil drain plug.
3. Drain the oil into the catch pan.
Note
Dispose of the old oil in an environmentally friendly
manner or hand it over to an authorised collection point.
4. Push the oil drain plug back in and secure it with the
retaining clip.
5. Slowly fill with new oil until the "MAX" marking on the
oil tank. The air bubbles must be able to escape.
English
Changing oil
23