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11

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 wand 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 exten-
sion 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 high-
er setting.

Summary of Contents for K 520 M

Page 1: ...n Up 7 Taking a Break 7 Winterizing and Long Term Storage 7 Cleaning Tips 8 9 Optional Cleaning Accessories 9 Troubleshooting 10 11 Model K 520 M Part No 1 069 680 0 High Pressure Washer Operator Manual Specifications Operating pressure 1500 PSI Water volume 1 7 GPM Voltage 120 V Amp draw 13 AMPS In USA Call 1 800 537 4129 or visit our website www karcher usa com ...

Page 2: ...d filter with metering valve 10 High pressure outlet not pictured 11 On Off switch 12 Spray wand extension 13 Quick connect adapter 2 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 wash...

Page 3: ...ing 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 ...

Page 4: ...NS 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 Step 1 Insert the Spray Wand Extension into the trigger gun Press in against the spring tension and twist into the l...

Page 5: ...nect garden hose to unit s water inlet using the quick connect adapter Step 4 Connect garden hose to the cold water source and turn water on completely Step 5 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 Step 6 Turn on the pressure washer I The motor starts only if the trigger of the gun is pulle...

Page 6: ...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 AT YOURSELF OTHER PER SONS OR ANIMALS USING THE ACCESSORIES GFCI INSTRUCTIONS Step 1 Plug the Ground Fault Circuit Interrupter GFCI into a working outlet Step 2 Press TEST then pre...

Page 7: ...oducts 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 informa tion on how to clean different surfaces Always Use Karcher Detergents for Best Results Ka...

Page 8: ...amage to the pump assembly and accessories TAKING A BREAK five minutes or more Step 1 Remove de tergent suction tube from container and insert into 1 gallon of fresh water Siphon water at low pres sure for one minute Step 2 Turn the switch to off O position and unplug cord from outlet Step 3 Turn off the water source Step 4 Press trigger to release water pressure Step 5 Disconnect the garden hose ...

Page 9: ...essure 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 pres sure For best results limit your work area...

Page 10: ...leaning 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 pres sure 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 fro...

Page 11: ...ough inlet water supply Open water source full force Water inlet filter is clogged Remove filter and rinse out in warm water Not enough inlet water supply Turn water on full force Check garden hose for kinks leaks or blockage 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 nozz...

Page 12: ...ges 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 Oilsealsaredamagedorworn 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 tu...

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