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10

Frost protection

Caution!

Frost will destroy a unit that is not com-

pletely empty of water! Store the unit where it 
will be free of frost.

If storage away from frost is not possible:

„

Drain off the water and rinse the unit 
through with anti-freeze.

„

Leave the unit to dry for max. 1 minute.

„

Use the standard glycol-based anti-freezes 
for cars.

„

Follow the handling instructions of the anti-
freeze manufacturer.

Care and maintenance

Danger!

Before any care and maintenance work 

on the unit draw out the mains plug.

Caution!

When changing the oil, dispose of any 

waste oil only at authorised collection points.

Safety inspection/Maintenance 
contract

You can arrange with your dealer to have a reg-
ular safety inspection carried out or to have a 
maintenance contract. Please seek advice.

Before each use

„

Check connecting cable for damage (risk of 
getting an electric shock), have a damaged 
connecting cable replaced without delay by 
authorised Customer Service personnel or 
an electrician.

„

Check high-pressure hose for damage 
(danger of explosion), replace a damaged 
high-pressure hose without delay.

„

Check unit (pump) for any leaks. 
Three drops per minute are allowable and 
can appear on the underside of the unit. 
Seek the help of Customer Service if leaks 
are more serious.

Every week

„

Check oil level in oil reservoir: if the oil is 
milky (water in oil), seek the help of Cus-
tomer Service immediately.

„

Clean the strainer in the water connection.

„

Clean the filter at the suction hose for de-
tergent.

Annually or after 500 operating 
hours

„

Change the oil

– For oil quantity and type see Technical 

Specifications.

– Undo the fastening screw, remove the 

hood, remove the oil tank cover, tilt unit.

– Drain oil into a suitable container.

– Fill slowly with fresh oil; air bubbles have 

to escape.

– Attach the oil tank cover.

Troubleshooting

Danger!

Before any repair work is undertaken, 

switch the unit off and pull out the power plug. 
Have electrical components checked and re-
paired only by authorised Customer Service 
personnel.
For faults which are not identified in this chap-
ter, or when in doubt or when expressly in-
structed to do so, consult authorised 
Customer Service personnel.

Unit does not work

„

Check connecting cable for damage.

„

Check the mains voltage.

„

Consult Customer Service if there is an 
electrical fault.

!

!

Summary of Contents for HD 3.0/20-4 M Ea

Page 1: ...www kaercher com HD 3 0 20 4M Ea 5 961 886 2012812 03 06...

Page 2: ...3...

Page 3: ...ger Gun Safety Lock PREVENTS the trigger from accidentally being engaged This safety feature DOES NOT lock trigger in the ON position Do not use extension cord with this unit GROUNDING INSTRUCTIONS Th...

Page 4: ...ne or any part of the body In case of penetration seek medical aid immediately This system is capable of producing 13700 kPa 2000 PSI to avoid rupture and injury do not operate this pump with componen...

Page 5: ...special note of the accompanying booklet Safety Instructions for High Pressure Clean ers No 5 951 949 Use of the cleaner Use this unit exclusively for cleaning with high pressure jet and deter gent e...

Page 6: ...g it up Wind the high pressure hose up in even layers on the hose reel by turning the crank handle Select the rotational direction so that the high pressure hose does not kink Switching on the unit El...

Page 7: ...ing until wa ter exits with no air bubbles If necessary allow unit to continue running for 10 sec onds and then switch off Repeat this pro cedure several times Switch off the unit and screw the nozzle...

Page 8: ...entration Recommended cleaning methods Spray detergent with low pressure jet spar ingly over the dry surface to be cleaned and let it take effect but not dry out Spray off rinse off the loosened dirt...

Page 9: ...eplace a damaged high pressure hose without delay Check unit pump for any leaks Three drops per minute are allowable and can appear on the underside of the unit Seek the help of Customer Service if le...

Page 10: ...gent Evacuate air from the cleaner see Switch ing on the unit Seek the help of Customer Service if nec essary Detergent is not being drawn in Set nozzle to Chem Check detergent suction hose with filte...

Page 11: ...tainer 20 C m 0 5 Supply pressure max psi MPa 145 1 Performance data Operating pressure psi MPa 435 2000 3 13 7 Max operating overpressure safety valve psi MPa 2200 15 2 Flow rate gpm l min 1 3 3 4 9...

Page 12: ......

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