Karcher K 3.78 Pressure Washer User Manual


 
7
For best results see Cleaning Tips on pages 9 & 10 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 environment 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:
WORKING WITH DETERGENTS
Step 1 Install 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 pressure (–) position to apply
detergents.
To apply detergents you must be operating at low pressure (–).
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.
Step 2 Fill a container with Kärcher
detergent. Place the filter end of detergent
suction tube into the container.
Caution
Never use:
Bleach, Chlorine products and other
corrosive chemicals
Liquids containing solvents
(i.e., paint thinner, gasoline, oils)
Trisodium phosphate products
Ammonia products
Acid-based products
These chemicals will harm the unit and
will damage the surface being cleaned.
The following Karcher detergents are
available:
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One Gallon ready to useOne Gallon ready to use
One Gallon ready to useOne Gallon ready to use
One Gallon ready to use
• Vehicle Wash • Degreaser
• All Purpose Cleaner • House Wash
• Deck Wash
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Detergent Concentrate TDetergent Concentrate T
Detergent Concentrate TDetergent Concentrate T
Detergent Concentrate T
abletsablets
abletsablets
ablets:
(10 Pack; makes 1 1/4 gallon RTU product)
• All Purpose • Degreaser
• Deck and patio • Windows and Siding
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In USA call: 1-800-537-4129
or visit our website:
www.karcher-usa.com