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K 3.78 M
High Pressure
Washer Operator
Manual
Overview .......................................... 2
Important Precautions ................ 3 - 4
Assembly Instructions..................... 4
Operating Instructions ..................... 5
GFCI Instructions ............................ 6
Using the Accessories .................... 6
Working with Detergents.................. 7
Shut Down and Clean-Up................. 8
Taking a Break ................................. 8
Winterizing and Long- Term
Storage ............................................ 8
Cleaning Tips ............................ 9 - 10
Optional Cleaning Accessories ..... 10
Troubleshooting ....................... 11 - 12
Specifications
Operating pressure, max. ... 1600 PSI
Water volume ....................... 1.6 GPM
Voltage ...................................... 120 V
Amp draw ............................ 14 AMPS
Part No. 1.423-953.0
In USA call:
1-800-537-4129
or visit our website:
www.karcher-usa.com
Manual Part No. 5.961-216.0 12/03
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OVERVIEW
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8
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5
6
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4
2
3
Item DescriptionItem Description
Item Description
Item DescriptionItem Description
1. Power cord with Ground Fault
Circuit Interrupter (GFCI)
2. Trigger gun
3. Trigger gun safety lock
4. High pressure hose
5. Water inlet with filter (not
shown)
6. Transport handle
7. Power cord holder
8. Detergent suction tube with
filter
9. High pressure outlet
10. On/Off switch
11. Vario Power spray wand
12. Rotary spray wand
2
NEVER !
Never point nozzle at people or animals.
Never drink alcohol or use drugs while operating this equipment.
Never operate while standing in water.
Never touch plug with wet hands.
Never let electrical connections rest in water.
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.
• 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 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.
• Keep operating area clear of all persons.
• 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.
• The Trigger Gun Safety Lock PREVENTS
the trigger from accidentally being
engaged. This safety feature DOES NOT
lock trigger in the on position.
Extension Cords
Use a sufficient gauge: Up to 25 ft. = 12/3
AWG; 25 to 50 ft. = 10/3 A WG. Use only
extension cords that are intended for outdoor
use. These extension cords are identified by
the 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.
Ground Fault Circuit Interrupter
(GFCI) Protection
This product is supplied with a Ground Fault
Circuit Interrupter (GFCI) built into the power
cord plug. This device provides additional
protection from the risk of electric shock. If
power is interrupted in the line, the GFCI will
automatically re-close the circuit to the load
after power is restored. Depending on the
GFCI model, it may be necessary to manually
operate the reset button to restore power to
the GFCI load circuit. If replacement of the
plug or cord is needed use identical replacement parts.
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.
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 produc
Caution
• Follow the maintenance instructions
specified in the manual.
• 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.
t.
3
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IMPORTANT PRECAUTIONS – continued
PRECAUTIONS
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 thinner, gasoline, oil, etc.
• Always prevent debris from being drawn
into the unit by using a clean water
source.
Save these instructions!
ASSEMBLY INSTRUCTIONS
4
Step 1
Step 2
Pull out the locking slide from the right side of
the trigger gun handle, and insert the small end
of the high pressure hose into place. Push the
locking slide back into the trigger gun to lock the
hose in position.