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NEVER!
K12 SURFACE CLEANER OVERVIEW
Item Description
1. Housing
2. Pressure nozzles (gray) from 1200 - 1600 PSI
3. P
ressure nozzles (yellow) from 1700 - 2300 PSI
4. Handle (2 piece)
5. Hand grip
6. Nozzle height adjustment
7. Air flow control (hovering effect)
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Never point nozzle at people or animals.
Never drink alcohol or use drugs while operating this equipment.
Never spray electrical connections, electrical outlets or fixtures.
Never touch hot surfaces or allow accessories to contact hot surfaces.
Never operate pressure washer without the water turned on.
Never use hot water.
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IMPORTANT PRECAUTIONS – Read First!
Safety Warnings
When using this product, basic 
precautions should always be followed:
• Read all the instructions before using 
the product.
• High pressure jets can be dangerous 
if subject to misuse. The jet must not 
be directed at persons, animals, 
electrical devices, or the machine itself.
• Wear safety goggles.
• Keep hands away 
from moving parts.
• Do not use acids, alkalines, solvents, or 
any flammable material in this product. 
These products can cause physical 
injuries to the operator and irreversible 
damage to the machine.
• Stay alert — watch what you are doing.
• Do not operate the product when 
fatigued or under the influence of 
alcohol or drugs.
• Do not stand on unstable surfaces. Stand 
with both feet balanced at all times.
• The Gun Safety Lock PREVENTS 
the trigger from accidentally being 
engaged. This safety feature DOES 
NOT lock trigger in the on position.
Water Supply 
(Cold Water Only)
• Water hose must be at least 3/4 inch 
in diameter.
• Flow rate of water supply must not fall 
below 2.5 GPM (gallons per minute).
• Flow rate can be determined by 
running the water for one minute into 
an empty 5-gallon container.
• The water supply temperature must not 
exceed 104°F/40°C.
• Never use the pressure washer to draw 
in water contaminated with solvents, 
e.g. paint thinners, gasoline, oil, etc.
• Always prevent debris from being 
drawn into the unit by using a clean 
water source.
CAUTION
• Follow the 
maintenance 
instructions 
specified in 
the manual.
• This machine has 
been designed for 
use with cleaning 
detergents supplied 
or recommended by 
the manufacturer. The 
use of other cleaning 
detergents may affect 
the operation of the 
machine and void the 
warranty.
• Keep hands away from 
moving parts
Never use:
• Bleach, Chlorine 
products and other 
corrosive chemicals
• Liquids containing 
solvents (i.e., paint 
thinners, gasoline, 
oils)
• Tri-sodium phosphate 
products
• Ammonia products
• Acid-based products. 
These chemicals will 
harm the unit and will 
damage the surface 
being cleaned.
Please Note:
• For optimum setting 
test the spray power 
in an unseen area.
• Never operate in the 
same area for more 
than 2 seconds, 
damage may occur
• Do not use on 
windows..
WARNING
TO AVOID SERIOUS INJURY, 
NEVER POINT SPRAY NOZZLE 
AT YOURSELF, OTHER PERSONS OR ANIMALS.
In USA Call: 
1-800-537-4129
or visit our website: www.karcher-usa.com
GRAY YELLOW