K 3.79 M
High Pressure Washer
Operator Manual
Overview ................................................. 2
Precautions ........................................ 3 - 4
Assembly Instructions ............................ 4
Operating Instructions ............................ 5
Using the Accessories ........................... 6
Working with Detergents ......................... 7
Shut Down and Clean-Up ........................ 8
Taking a Break ........................................ 8
Winterizing andLong-Term
Storage .............................................. 8 - 9
Cleaning Tips ................................... 9 - 10
Optional Cleaning Accessories .............10
Troubleshooting ................................ 11-12
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Specifications
ON
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Working Pressure ...................... 9000 kPa
............................................... 1300 PSI
Max. Pressure............................ 1500 PSI
Max. Water volume ..................... 1.6 GPM
Voltage ............................................. 120 V
Amp draw ................................... 13 AMPS
Please keep the original box, packaging and receipt.
Before operating this unit, please read this manual thoroughly and
retain it for future reference.
Part No. 1.423-922.0
Manual Part No. 5.961-170.0 11/03EN
IMPORTANT PRECAUTIONS – Read First!
Extension Cords
Safety Warnings
Use a sufficient gauge:
When using this product basic precautions
Up to 25 ft = 12/3 AWG.
25 to 50 ft =10/3 AWG.
Use only extension cords that are intended for
should always be followed:
• Read all the instructions before using the
product.
outdoor use. These extension cords are
identified by a marking “Acceptable for use
with outdoor appliances; store indoors while
not in use.” Use only extension cords having
an electrical rating not less than the rating of
the product. Do not use damaged extension
cords. Examine extension cord before using
and replace if damaged. Do not abuse
extension cord and do not yank 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 extension cord. If you are
using an extension cord, it should always be
completely unwound from the cable drum.
• 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.
• To reduce the risk of injury, do not operate
the machine near children.
• Learn how to stop the machine and release
pressure quickly. Be thoroughly familiar with
the controls.
• Stay alert — watch what you are doing.
• Wear safety goggles.
• Do not use acids, solvents, or any other
flammable material in this product. These
products can cause physical injuries to the
operator and irreversible damage to the
machine.
• 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.
• To reduce the risk of electrocution, keep all
connections dry and off the ground. Do not
touch plug with wet hands.
Grounding Instructions
This product must be grounded. If it should
malfunction or breakdown, grounding
provides a path of least resistance for electric
current to reduce the risk of electric shock.
This product is equipped with a cord having
an equipment-grounding conductor and a
grounding plug. The plug must be plugged
into an appropriate outlet that is properly
installed and grounded in accordance with all
local codes and ordinances.
3
• The Trigger Gun Safety Lock PREVENTS the
trigger from accidentally being engaged.
This safety feature DOES NOT lock trigger
in the on position.
DANGER- Improper connection of the
equipment-grounding conductor can result in
a risk of electrocution. Check with a qualified
electrician or service personnel if you are in
doubt as to whether the outlet is properly
grounded. Do not modify the plug provided
with the product - if it will not fit the outlet,
have a proper outlet installed by a qualified
electrician. Do not use any type of adapter
with this product.
WARNING
• DO NOT SPRAY ELECTRICAL APPARATUS
AND WIRING.
•
DO NOT USE WITH FLAMMABLE LIQUIDS AND
TOXICCHEMICALS
•
INJECTION HAZARD: EQUIPMENT CAN CAUSE
SERIOUS INJURY IF THE SPRAY PENETRATES
THE SKIN. DO NOT POINT THE GUN AT ANYONE
OR ANY PART OF THE BODY. IN CASE OF
PENETRATION SEEK MEDICAL AID IMMEDIA-
TELY.
Caution
• Follow the maintenance instructions
specified in the manual.
•
•
THIS SYSTEM IS CAPABLE OF PRODUCING
9000 KPA (1300 PSI). TO AVOID RUPTURE
AND INJURY, DO NOT OPERATE THIS PUMP
WITH COMPONENTS RATED LESS THAN
9000 KPA (1300 PSI) WORKING PRESSURE
(INCLUDING BUT NOT LIMITED TO SPRAY
GUNS, HOSE AND HOSE CONNECTIONS).
BEFORE SERVICING, CLEANING OR
REMOVING ANY PARTS, SHUT OFF POWER
AND RELIEVE PRESSURE.
• This machine has been designed for use
with cleaning detergent supplied
or recommended by the manufacturer.
The use of other cleaning detergents
may affect the operation of the machine
and void the warranty.
IMPORTANT PRECAUTIONS – continued
• Never use the pressure washer to draw in
water contaminated with solvents, e.g.
paint thinners, gasoline, oil, etc.
Water Supply (Cold Water Only)
• Water hose must be at least 1/2 inch or
5/8 inch in diameter.
NOTE: Dirt in the feed water will
damage the unit. To avoid this risk,
we recommend fitting a water filter.
• Flow rate of water supply must not fall
below 2 GPM (gallons per minute).
• Flow rate can be determined by running the
water for one minute into an empty
5-gallon container.
• Always prevent debris from being drawn
into the unit by using a clean water source
and an accessory water filter if required.
• The water supply temperature must not
exceed 104°F/40°C.
Save these instructions!
ASSEMBLY INSTRUCTIONS
!
4
Step 1
Step 2
Step 3
5
Step 5
Step 4
Pull out the locking slide from the right side of the
trigger gun handle (A), and insert the small end of the
high pressure hose into place (B). Push the locking
slide back into the trigger gun to lock the hose in
position.
OPERATING INSTRUCTIONS
Step 2
Insert the spray wand of your choice into the
trigger gun. Press in against the spring
tension and twist into the locked position.
Step 1
Connect the high pressure hose to the high
pressure outlet.
5
Step 4
Connect garden hose to the cold water
source and turn water on completely.
Plug the power cord into the power outlet.
Step 3
Connect the garden hose to the water inlet.
O/OFF
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Step 6
Step 5
Turn on the pressure washer (I). The motor
starts only if the trigger of the gun is
pulled and shuts off when the trigger is
released.
Unlock the lock of the trigger gun (A). Trigger
the gun (B) to eliminate trapped air, wait for a
steady flow of water to emerge from the
spray nozzle.
USING THE ACCESSORIES
Vario power spray wand
The Vario power spray wand allows you to adjust the cleaning pressure. To clean at maximum
pressure, the wand must be positioned to the high pressure setting (+).
To apply detergent, the wand must be positioned to the low pressure setting (-).
For lower
pressure turn
wand collar in the
minus (–) direction.
For higher
pressure turn
wand collar in the
plus (+) direction.
Rotary spray wand
Warning
This wand features a 0º pencil jet which
rotates 360º for maximum dirt cutting action,
effectively increasing cleaning performance
up to 50%. This wand combines the cleaning
performance of a 0º pencil jet with the
surface coverage of a wide angle nozzle. Not
recommended for soft materials, siding,
painted surfaces, decks or autos.
TO AVOID SERIOUS INJURY, NEVER
POINT SPRAY NOZZLE AT YOURSELF,
OTHER PERSONS OR ANIMALS
6
WORKING WITH DETERGENTS
To apply detergents you must be operating at low pressure (–).
Step 1
Install the Vario power spray wand. Set the wand to the low pressure setting (–) by turning the
wand collar.
Note: The wand must be set in the low pressure (–) position to apply detergents.
7
Step 2
Step 3
Fill detergent tank with 1.0 L of Kärcher
detergent.
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.
For best results see Cleaning Tips on pages 9 & 10 for specific
information on how to clean different surfaces.
Always Use Kärcher Detergents for Best
Results.
The following Kärcher detergents are
available:
Kärcher 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 Kärcher
detergents, check your retailer or call:
• Pressure Wash
• Deck + Fence Wash
•Degreaser
• Vehicle Wash
Caution
• Bleach, Chlorine products and other
corrosive chemicals
Never use:
• Liquids containing solvents
(i.e., paint thinners, gasoline, oils)
• Tri-sodium phosphate products
• Ammonia products
1-800-465-4980
• Acid-based products
These chemicals will harm the unit and
will damage the surface being cleaned.
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