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
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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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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3
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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.
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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.
OPERATING INSTRUCTIONS
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Step1 Connect the high pressure hose to the
unit’s high pressure outlet.
Step2 Install the Wash brush or the
Vario spray wand into the wand exten­sion. Push in and turn clockwise to lock spray wand in place.
Step3
Connect garden hose to unit’s
water inlet using the quick connect adapter.
Step4
Connect garden hose to the cold water source and turn water on completely.
Step5 Plug the power cord into the power out-
let.Trigger the gun to eliminate trapped air, wait for a steady flow of water to emerge from the spray nozzle.
Step6 Turn on the pressure
washer (I).The motor star ts only if the trigger of the gun is pulled and shuts off when the trigger is released.
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The Vario spray wand allows you to adjust the cleaning pressure.To clean at maximum pressure, the Vario 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.
This brush is ideal for removing stubborn dirt and stains from finished surfaces.Use with detergents only.
Wash brush
Vario spray wand
WARNING
TO AVOID SERIOUS INJURY, NEVER POINT SPRAY NOZZLE A T Y OURSELF, OTHER PER­SONS OR ANIMALS
USING THE ACCESSORIES
GFCI INSTRUCTIONS
Step1 Plug the Ground
Fault Circuit Interrupter (GFCI) into a working outlet.
Step2 Press “TEST”, then
press “RESET” to assure proper connection to power.
Note: The actual appearance of the GFCI may be different from this illustration.
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WORKING WITH DETERGENTS
Step2 Fill a container with Karcher
detergent. Set metering valve on filter to desired dosage. Place the filter end of detergent suction tube into the container.
Step3
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.
Step1 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 pres­sure (-) position to apply detergents.
Detergents can only be applied at low pressure (-).
Caution
Never use:
• Bleach, Chlor ine 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.
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 environ­ment and your pressure washer. The 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:
The following Karcher detergents are available:
• V ehicle Wash • House Wash
• Degreaser • Deck Wash
• All Purpose Cleaner
In USA Call:
1-800-537-4129
or visit our website:
www.karcher-usa.com
SHUTTING DOWN & CLEAN-UP
7
WINTERIZING AND LONG-TERM STORAGE
1. Disconnect all water connections.
2. Start the machine for a few seconds, until the water which had remained in the pump exits.Tur n off immediately.
3. Do not allow high pressure hose to become kinked.
4. Store the machine and accessories in a room which does not reach freezing temperatures.
Caution: Failure to follow the above directions will result in damage to the pump assembly and accessories.
TAKING A BREAK... five minutes or more
Step1 Remove de-
tergent suction tube from container and insert into 1 gallon of fresh water. Siphon water at low pres­sure for one minute.
Step2
Turn the switch to off (O) position and unplug cord from outlet.
Step3
Turn off the water source.
Step4
Press trigger to release water pressure.
Step5 Disconnect the
garden hose from the water inlet on the unit.
Step2
Turn pressure washer to off (O) position.
Step6 Disconnect the high pressure hose from the
high pressure outlet and engage the gun safety lock.
Step1
Engage gun safety lock.
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CLEANING TIPS
Deck Cleaning
(with or without detergent) Pre-rinse deck and surrounding area with
fresh water.If using Kärcher Deck Wash, place detergent suction tube directly into cleaning solution and apply to surface at low pressure. For best results, limit your work area to smaller sections of approximately 25 square feet. Allow Kärcher Deck Wash to remain on surface 1-3 minutes.Do not allow detergent to dry on surface. Rinse at high pressure in a long sweeping motion keeping the spray nozzle approximately 3-6 inches from the cleaning surface.Always clean from top to bottom and from left to right. When moving on to a new section of the cleaning surface, be sure to overlap the pre­vious section to eliminate stop marks and ensure a more even cleaning result.
House Siding
(with or without detergent) Pre-rinse cleaning surface with fresh water.
If using Kärcher House Wash, place deter­gent suction tube directly into cleaning solu­tion and apply to surface at low pressure (for best results, limit your work area to sections of approximately 6 feet and always apply detergent from bottom to top). Allow Karcher House Wash to remain on surface 1-3 minutes.Do not allow detergent to dry on surface, if surface appears to be drying, simply wet down surface with fresh water.If needed, use special Wash Brush Attachment to remove stubborn dirt. Rinse at high pressure from top to bottom in an even sweeping motion keeping the spray nozzle approximately 6 inches from the cleaning surface.
Cement Patios, Brick and Stone
(with or without detergent) Pre-rinse cleaning surface with fresh water.
If using Karcher All Purpose Cleaner, place detergent suction tube directly into cleaning solution and apply to surface at low pres­sure. For best results, limit your work area to smaller sections of approximately 25 square feet. Allow Kärcher All Purpose Cleaner to remain on surface 1-3 minutes. Do not allow detergent to dry on surface. Rinse at high pressure in a sweeping motion keeping the spray nozzle approxi­mately 3-6 inches from the cleaning surface. Always clean from top to bottom and from left to right. For removing extremely stub­born stains, use Kärcher Dirtblaster
®
Wand.
Cars, Boats & Motorcycles
(with or without detergent) Pre-rinse vehicle with fresh water.If using
Karcher Vehicle Wash, place detergent suc­tion tube directly into cleaning solution and apply to surface at low pressure.For best results, clean one side of vehicle at a time and always apply detergent from bottom to top, do not allow detergent to dry on sur­face.If needed, use special Wash Brush Attachment to remove stubborn dirt. Rinse at high pressure in a sweeping motion keep­ing the spray nozzle approximately 6-8 inch­es from the cleaning surface (distance should increase when rinsing pin-striping or other sensitive surfaces).Always clean from top to bottom and from left to right. For best results, wipe surface dry with a cham­ois or soft dry cloth.
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CLEANING TIPS –
continued
Barbecue Grills, Outdoor Power Equipment & Gardening Tools
(with or without detergent) Pre-rinse cleaning surface with fresh water.If
using Kärcher All Purpose Cleaner or Degreaser, place detergent suction tube directly into cleaning solution and apply detergent at low pressure. Allow Kärcher detergent to remain on surface 1-3 minutes. Do not allow detergent to dry on surface. Rinse at high pressure keeping the spray nozzle approximately 3-6 inches from the cleaning surface.For removing extremely stubborn dirt, it may be necessary to move the spray nozzle even closer to the surface for greater dirt cutting action.To remove caked on mud from garbage cans, lawn mower blades, wheel barrels or other non-sensitive metal surfaces, you may want to use the Karcher Dirtblaster
®
Wand.
Patio & Lawn Furniture
(with or without detergent) Pre-rinse furniture and surrounding area with
fresh water.If using Kärcher All Pur pose Cleaner, place detergent suction tube direct­ly into cleaning solution and apply to surface at low pressure. Allow Kärcher All Purpose Cleaner to remain on surface 1-3 minutes. Do not allow detergent to dry on surface. If needed use special Wash Brush Attachment to remove stubborn dirt. Rinse at high pres­sure in a sweeping motion keeping the spray nozzle approximately 3-6 inches from the cleaning surface.For best results, clean from top to bottom and from left to right.
Recommendations
• Before cleaning any surface an inconspicu-
ous area should be cleaned to test spray pattern and distance for maximum cleaning results.
• If painted surfaces are pealing or chipping,
use extreme caution as pressure washer may remove the loose paint from the surface.
OPTIONAL CLEANING ACCESSORIES
• Wash Brush
• House Washing Wand
• Extension Wand
• Dirtblaster®Wand
• Flexible Spray Wand
• Underbody Spray Wand
• Telescopic Spray Wand
• Pipe Drain Cleaner
• Detergent Foamer Attachment
• Water Suction Hose
• Extension Hose 25’
• Rotating wash brush
Optional cleaning accessories are available to further enhance your cleaning capabilities: See accessories order form for product descriptions and ordering instructions.
In USA Call:
1-800-537-4129
or visit our website: www.karcher-usa.com
10
TROUBLESHOOTING
Disconnect the machine from the power source before making any repair.
Symptom Cause Solution
Motor will not start.
Unit does not reach high pressure.
Output pressure varies high and low.
Extension cord is too long. Extension cord is not
proper gauge. Extension cord is damaged.
Replace extension cord with either a 25 ft. 12/2 gauge cord or a 50 ft. 10/2 gauge cord.
Electrical outlet does not supply adequate power.
Try a different outlet.
Ground Fault Circuit Interrupter (GFCI) tripped.
Reset breaker (power supply) or GFCI.
Diameter of garden hose is too small.
Replace with a 3/4 inch garden hose.
Water supply is restricted.
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 war m wa te r.
Not enough inlet water supply.
Turn water on full force.Check garden hose for kinks, leaks or bloc kage.
Pump is sucking air. Check that hoses and fittings are air tight.
Turn off machine and purge pump by squeezing trigger gun until a steady flow of water emerges through the nozzle.
Water inlet filter is clogged.
Remove filter and rinse out in war m wa te r.
Discharge nozzle is obstructed.
Blow out or remove debris with a fine needle.
Calcified gun, hose or spray wand.
Run distilled vinegar through detergent suction tube.
On/Off switch is in the “OFF” (O) position.
Turn switch to the “ON” (I) position.
Power cord is not plugged in.
Plug in power cord.
Spray wand is in low pressure position.
Turn spray wand to high pressure position.
Wash brush is attached.
Attach vario spray wand
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TROUBLESHOOTING
– continued
Symptom Cause Solution
No detergent.
Garden hose connection leaks.
Pump is noisy.
Water leaks from pump.
Oil Drip.
Detergent is too thick. Dilute detergent, for best results
use Kärcher detergent.
Filter on detergent suction tube is clogged.
Run warm water through filter to remove debris.
Damaged or clogged detergent suction tube.
Remove obstruction or replace detergent suction tube.
Spray wand is in high pressure position.
Turn spray wand tip to low pressure position.
Discharge nozzle is obstructed.
Blow out or remove debris with fine needle.
Loose fittings. Tighten fittings. Missing/worn rubber washer. Insert new washer.
Spray wand extension not properly attached.
Broken o-ring.
Check that hoses and fittings are air tight.Turn off machine and purge pump by 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 Kärcher customer service hotline and order an o-ring.
Pump is sucking air.
Oil seals are damaged or worn. Call service center.
Spray wand or Spray wand extension leaks.
Spray wand not properly attached.
Insert the spray wand of your choice into the the wand extension.Push in and turn clockwise to lock spray w and in place.
Insert 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..
Detergent suction tube not properly connected to the machine.
Check connection.
If you encounter any additional difficulties not listed, please call our service center for help.
Kärcher Customer Support USA
Detergent container is empty . Add more detergent.
In USA Call:
1-800-537-4129
or visit our website: www.karcher-usa.com
Detergent filter valve is at lowest setting.
Set detergent filter valve to a high­er setting.
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