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IMPORTANT PRECAUTIONS – Read First!

Safety Warnings

When using this product, basic precau-
tions should always be followed:

• Read all the instructions before using 

the product.

• Fire hazard! Do not add fuel with the

engine running. Do not operate if fuel
has been spilled. Instead, move the
machine to a different location and avoid
creating sparks.

• Operate and fuel machine in a well

ventilated area, free of devices featuring
an open pilot or flame such as boilers,
water heaters, etc.

• 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.
• Do not use acids, alkaline, solvents, or

any flammable material in this product.
These products can cause physical
injuries to the operator and irreversible
damage to the machine.

• The machine has hot surfaces which can

cause burns. Operate the unit in a safe
environment and away from children.

• Do not allow the high pressure hose to

come into contact with the muffler guard.

• Do not leave the machine running

unattended.

• Learn how to stop the machine and 

release pressure quickly. Be thoroughly
familiar with the controls.

• 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.

• Avoid tipping the machine on its side.
• 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.

We strongly recommend that this high
pressure washer not be left running for
periods of 5 minutes or longer without 
the trigger gun being engaged.

This Kärcher high pressure washer is
equipped with thermal protection to extend
the life of your pressure washer. The
thermal protector will automatically
activate at a predetermined high
temperature ejecting hot water before
resetting. This ensures that the pump does
not become damaged.

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.

Summary of Contents for 1.194-115

Page 1: ...9 or visit our website www karcher usa com Model K 2400 HH Part No 1 194 302 Model K 2400 HB Part No 1 194 303 Model HD 2500 HK Part No 1 194 115 High Pressure Washer Operator Manual Specifications Model K 2400 HH Operating pressure 2400 PSI Water volume 2 5 GPM Engine 5 0 HP Honda GC 160 Model K 2400 HB Operating pressure 2400 PSI Water volume 2 5 GPM Engine 5 5 HP Briggs Stratton Model K 2500 HK...

Page 2: ...t nozzle 17 Operator manuals 18 Detergent tray 2 1 4 3 10 7 14 5 6 9 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 add fuel with the engine running or operate where fuel has been spilled Never touch hot surfaces or allow accessories to contact hot surfaces Never operate...

Page 3: ... or drugs Do not stand on unstable surfaces Stand with both feet balanced at all times Avoid tipping the machine on its side 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 p...

Page 4: ...s Step 2 Attach the gun hose storage handle Step 3 Attach the wand to the spray gun Step 4 Attach the triple jet nozzle Step 5 Attach the high pressure hose to the spray gun Step 6 Connect the high pressure hose to the unit s high pressure outlet Step 7 Connect the garden hose to unit s water inlet Step 8 Attach the detergent tray ...

Page 5: ...g move the choke to RUN Step 6 Pull the starter handle If the engine fails to start after 3 pulls squeeze the trigger gun to release pressure and repeat step After the engine warms up enough to run smoothly move choke to open position and throttle to fast position Important Do not run the engine with a high or low oil level as this can cause engine damage If you have further questions regarding th...

Page 6: ...D SERIOUS INJURY NEVER POINT SPRAY NOZZLE AT YOURSELF OTHER PER SONS OR ANIMALS USING THE ACCESSORIES The triple jet nozzle must be positioned to one of the two settings for high pressure cleaning by turning the nozzle tip The pencil jet spray 0º should be used for stubborn dirt The High pressure flat spray 25º should be used for cleaning over a large surface area The third set ting on the triple ...

Page 7: ...ula won t clog the suction tube filter and will protect the internal parts of the pressure washer for a longer life For Kärcher Detergents check your retailer or call The following Kärcher detergents are available Vehicle Wash House Wash Degreaser Deck Wash All Purpose Cleaner Step 2 Adjust the filter end of the detergent tube for light or maximum detergent coverage Step 3 Fill a container with Kä...

Page 8: ...peratures Caution Failure to follow the above directions will result in damage to the pump assembly and accessories TAKING A BREAK five minutes or more Step 5 Disconnect the garden hose from the water inlet on the unit Step 6 Disconnect the high pressure hose from the high pressure outlet Step 7 Engage the gun safety lock Step 1 Remove de tergent suction tube from container and insert into one gal...

Page 9: ...pressure from top to bottom in an even sweeping motion keeping the spray nozzle approximately 6 inches from the cleaning surface Caution Do not use Dirtblaster nozzle on siding as it may cause damage Cement Patios Brick and Stone with or without detergent Pre rinse cleaning surface with fresh water If using Kärcher All Purpose Cleaner place detergent suction tube directly into cleaning solution an...

Page 10: ... water If using Kärcher All Purpose Cleaner place detergent suction tube direct ly into cleaning solution and apply to surface at low pressure Allow Kärcher All Purpose Cleaner to remain on surface 1 3 minutes Do not allow detergent to dry on surface Rinse at high pressure in a sweeping motion keeping the spray nozzle approximately 3 6 inches from the cleaning surface For best results clean from t...

Page 11: ...l Replace with a 3 4 inch garden hose Water supply is restrict ed Check garden hose for kinks leaks and blockage Not enough inlet water supply Open water source full force Water inlet filter is clogged Remove filter and rinse out in warm water Not enough inlet water supply Turn water on full force Check garden hose for kinks leaks or blockage Pump is sucking air Check that hoses and fittings are a...

Page 12: ...new washer Spray wand not properly attached Broken o ring Check that hoses and fittings are air tight Turn off machine and purge pump by squeezing trigger gun until a steady flow of water emerges through the nozzle Loose fittings Check that all fittings are tight Call service center Water seals are damaged or worn Thermal protection device will auto reset Thermal protection device is activated Cal...

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