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7

WORKING WITH DETERGENTS

The high pressure setting is used for cleaning, you cannot apply detergents when working at high
pressure. To apply detergents you must be operating at low pressure (

“CHEM” position

).

Step 3

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, from bottom to top. Do not allow
detergent to dry on surface.

Step 2

Adjust the filter end of the detergent tube for
light (-), or maximum (+) detergent coverage.
Place the filter end of detergent suction tube
into the jug.

Step 1

Use triple nozzle, set to “CHEM” position, to
apply detergents

Always Use Kärcher
Detergents for Best Results.

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 with your dealer
or call:

1-888-705-9444

The following detergents are
available from your Kärcher dealer:

 Caution

Never use:

• Bleach, chlorine 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.

Summary of Contents for HD 425

Page 1: ... Up 8 Taking a Break 8 Winterizing and Long Term Storage 8 Optional Cleaning Accessories 9 Troubleshooting 11 12 Specifications Max Pressure 1150 PSI Max Water Volume 1 8 GPM Voltage 120 V Amp Draw 13 AMPS 5 960 859 2005435 04 03 Please keep the original box packaging and receipt Before operating this unit please read this manual thoroughly and retain it for future reference HD 425 ...

Page 2: ...rugs 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 NEVER THE BEST ANTI FREEZE PROTECTION IS PROVIDED BY USING AND STORING THE MACHINE IN SHELTERED SPACE 6 Spray wand 7 Triple jet nozzle 8 High pressure hose 9 Water inlet...

Page 3: ...ank 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 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 dir...

Page 4: ... using a clean water source and an accessory water filter if required Water Supply Cold Water Only Water hose must be at least a 1 2 inch or 5 8 inch in diameter 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 The water supply temperature must not exceed 104 F 40 C Step 1 Attach ...

Page 5: ...rn water on completely Step 4 Plug the power cord into the power outlet Unlock the lock of the trigger gun Step 6 Turn on the pressure washer ON NOTE This unit is equipped with a pressure switch The motor only starts up when the trigger on the gun is pulled The motor shuts off when the trigger is released Step 5 Trigger the gun to eliminate trapped air wait for a steady flow of water to emerge fro...

Page 6: ...dirt The High pressure flat spray 25 should be used for cleaning over a large surface area The third setting on the triple nozzle is used for the application of detergents Triple Jet Nozzle Warning TO AVOID SERIOUS INJURY NEVER POINT SPRAY NOZZLE AT YOURSELF OTHER PERSONS OR ANIMALS High pressure pencil jet cleaning High pressure fan jet cleaning Low pressure Detergent application CHEM position ...

Page 7: ...jug Step 1 Use triple nozzle set to CHEM position to apply detergents Always Use Kärcher Detergents for Best Results 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 with your dealer...

Page 8: ... 5 Disconnect the garden hose from the water inlet on the unit Step 1 Engage gun safety lock Step 2 Turn pressure washer to off OFF position 1 Disconnect all water connections 2 Turn on the machine for a few seconds until the water which had remained in the pump exits Turn off immediately 3 Do not allow high pressure hose to become kinked WINTERIZING AND LONG TERM STORAGE 4 Store the machine and a...

Page 9: ...mages nor does it cover repairs made or attempted by unauthorized persons Wearitemssuchasnozzle hose spray wands and other accessories are warranted for 3 months Please note that no returns will be accepted without prior authorization from our customer service department It is the owner s responsibility to file claims for damage caused by public transportation carriers directly with the carrier co...

Page 10: ...t filter is clogged Discharge nozzle is obstructed Calcified gun hose or power nozzle Solution Turn switch to the ON position Plug in power cord Replace extension cord with either a 25 ft 12 2 gauge cord or a 50 ft 10 2 gauge cord Try a different outlet Replace with a 1 2 inch or 5 8 inch garden hose Check garden hose for kinks leaks and blockage Open water source full force Remove filter and rins...

Page 11: ... that all fittings are tight Call Customer Service Call Customer Service Symptom No detergent Garden hose connection leaks Spray wand leaks Pump is noisy Water leaks from pump up to 10 drops per minute is permissible Oil Drip Cause Detergent is too thick Filter on detergent suction tube is clogged Damaged or clogged detergent suction tube Triple nozzle is in high pressure position Discharge nozzle...

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