Karcher K 520 User Manual
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . .3
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . .4
GFCI Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Using the Accessories . . . . . . . . . . . . . . . . . . . . . . . . .5
Working with Detergents . . . . . . . . . . . . . . . . . . . . . . .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
Model K520M Part No.1.069-680.0
High Pressure Washer Operator Manual
Specifications
Operating pressure 1500 PSI
Water volume 1.7 GPM
V oltage 120 V
Amp draw 13 AMPS
In USA Call:
1-800-537-4129
or visit our website:
www.karcher-usa.com
1
NEVER!
Model K 520 M OVERVIEW
Item Description
1. Vario spray wand
2. Power cord with Ground Fault Circuit Interrupter (GFCI)
3. Wash brush
4. Trigger gun
5. Trigger gun safety lock
6. High pressure hose
7. Water inlet
8. Retractable handle
9. Detergent suction tube and filter with metering valve
10. High pressure outlet (not pictured)
11. On/Off switch
12. Spray wand extension
13. Quick-connect adapter
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1
9
4
7
6
8
11
10
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.
5
3
12
13
2
IMPORTANT PRECAUTIONS – Read First!
Safety Warnings
When using this product, basic precautions should always be followed:
• Read all the instr uctions 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.
• Lear n 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.
• 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 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 = 12/2
AWG;25 to 50 ft = 10/2 AWG. 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 unit is supplied with a portable
Ground Fault Circuit Interrupter (GFCI).
UL indicates that the power cord has been
investigated for compliance with the
applicable provisions of UL 943, Third
Edition (Standard for Ground Fault Circuit
Interrupters) and other applicable
standards. If power is interrupted in the
line, the GFCI will automatically reclose
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.
This Product Is
Double Insulated
In a double-insulated product, two systems
of insulation are provided instead of
grounding. No grounding method is
provided on a double-insulated product,
nor should a method for grounding be
added to the product. Servicing a doubleinsulated product requires extreme care
and knowledge of the system, and should
be done only by qualified service
personnel. Replacement parts for a
double-insulated product must be identical
to the parts they replace. A doubleinsulated product is marked with the
words, “DOUBLE INSULATED.”
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.
3
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.
IMPORTANT PRECAUTIONS –
continued
• 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.
ASSEMBLY INSTRUCTIONS
Step1 Inser t the Spray Wand Extension into the trigger gun.
Press in against the spring tension and twist into the lock position.
Turn the Spray Wand Extension Collar clockwise until tight.
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