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1 800-537-4129   pa

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WORKING WITH DETERGENTS

Karcher Pressure washers operate at two pressures. The high pressure is used for cleaning,
you cannot apply detergents when working at high pressure. To apply detergents you must be
operating at low pressure.

Caution

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.

Step 2

Fill a container with Karcher

detergent. Place the filter end of detergent
suction tube into the container.

Step 3

Turn on the pressure washer.

Pull trigger to operate unit: Liquid detergent
is drawn into the unit and mixed with water.
Apply detergent to work area. Do not allow
detergent to dry on surface.

The following Karcher detergents are 
available:

• Vehicle Wash

• House Wash

• Degreaser

• Deck Wash

• All Purpose Cleaner

In USA Call:

1-800-537-4129

or visit our website:

www.karcher-usa.com

For best results see Cleaning Tips
on pages 8 & 9 for specific 
information on how to clean 
different surfaces.

Always Use Karcher 
Detergents for Best Results.

Karcher biodegradable detergents are
specially formulated to protect the environ-
ment and your pressure washer. Special 
formula won’t clog the suction tube filter 
and will protect the internal parts of the
pressure washer for a longer life. For
Karcher Detergents, check your retailer 
or call:

Step 1

Install the Wash brush or the Vario

spray wand. Set the Vario spray wand to the
low pressure setting (-) by turning the wand
collar. The wand must be set in the low pres-
sure (-) position to apply detergents.

Summary of Contents for K 280 M

Page 1: ...ents 6 Shut Down and Clean Up 7 Taking a Break 7 Winterizing and Long Term Storage 7 Cleaning Tips 8 9 Optional Cleaning Accessories 9 Troubleshooting 10 11 Specifications Operating pressure 1400 PSI...

Page 2: ...ned on Never use hot water 2 1 4 9 8 7 15 14 5 6 11 10 3 12 13 Item Description 1 Detergent suction tube 2 Detergent filter 3 Vario spray wand 4 Rotating spray wand 5 Wash Brush 6 Mobile adapter brack...

Page 3: ...on any cord to disconnect Keep cord away from heat and sharp edges Always disconnect the extension cord from the receptacle before disconnecting the product from the exten sion cord If you are using...

Page 4: ...s gasoline oil etc Always prevent debris from being drawn into the unit by using a clean water source Step 4 Connect the hose reel high pressure hose exten sion to the unit s high pressure outlet Step...

Page 5: ...RESET to assure proper connection to power Trigger the gun to eliminate trapped air wait for a steady flow of water to emerge from the spray nozzle Step 6 Turn on the pressure washer The motor starts...

Page 6: ...aces decks or autos Rotating spray wand Wash brush WARNING TO AVOID SERIOUS INJURY NEVER POINT SPRAY NOZZLE AT YOURSELF OTHER PERSONS OR ANIMALS High low spray wand GFCI INSTRUCTIONS Step 1 Plug the G...

Page 7: ...into the unit and mixed with water Apply detergent to work area Do not allow detergent to dry on surface The following Karcher detergents are available Vehicle Wash House Wash Degreaser Deck Wash All...

Page 8: ...to the pump assembly and accessories TAKING A BREAK five minutes or more Step 1 Remove de tergent suction tube from container and insert into 1 gallon of fresh water Siphon water at low pres sure for...

Page 9: ...ven sweeping motion keeping the spray nozzle approximately 6 inches from the cleaning surface Caution Do not use rotating nozzle spray wand on siding as it may cause damage Cement Patios Brick and Sto...

Page 10: ...n tube direct ly into cleaning solution and apply to surface at low pressure Allow K rcher All Purpose Cleaner to remain on surface 1 3 minutes Do not allow detergent to dry on surface If needed use s...

Page 11: ...ricted 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 inle...

Page 12: ...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 Call K rcher customer...

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