Karcher K 3.97 M User's Manual
Contents
1. TAKING A BREAK five minutes or more Step 1 Step 2 Engage the gun Turn pressure washer safety lock to off O position WINTERIZING AND LONG TERM STORAGE 1 Disconnect all water connections 4 Store the machine and accessories in 2 Turn on the machine for a few seconds a room which does not reach freezing until the water which had remained in temperatures the pump exits Turn off immediately Caution Failure to follow the above 3 Do not allow high pressure hose to directions will result in damage to the become kinked pump assembly and accessories CARE AND MAINTENANCE INSTRUCTIONS Maintenance The unitis maintenance free Cleaning the water inlet filter Pull out the water inlet filter with flat nose AN pliers and rinse out in warm water Deck Cleaning with or without detergent Pre rinse deck and surrounding area with fresh water If using K rcher Deck and Patio Cleaner place detergent suction tube direct ly into cleaning solution and apply to surface at low pressure For best results limit your work area to smaller sections of approxi mately 25 square feet Allow K rcher Deck and Patio Cleaner 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 of2. and rinse out in warm water Quattro Nozzle is in low pressure position Turn Quattro Nozzle to high pressure position Wash brush is attached Not enough inlet water supply Attach Quattro Nozzle 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 nozzle Water inlet filter is clogged Remove filter and rinse out in warm water Discharge nozzle is obstructed Blow out or remove debris with a fine needle Calcified gun hose or Quattro Nozzle Run distilled vinegar through detergent suction tube TROUBLESHOOTING continued Symptom No detergent Garden hose connection leaks Spray wand or Spray wand extension leaks Pump is noisy Water leaks from pump up to 10 drops per minute is permissible Oil Drip Detergent suction tube not properly connected to the machine Solution Check connection Detergent is too thick Dilute detergent for best results use Karcher 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 Quattro Nozzle is in high pressure position Turn Quattro Nozzl
3. jet cleaning maximum dirt fan jet for cleaning cutting action detergent injection Step 5 Turn Quattro Nozzle to desired setting position Match symbols above A WARNING RISK OF INJECTION OR INJURY DO NOT DIRECT DISCHARGE STREAM AT PERSONS TO AVOID SERIOUS INJURY NEVER POINT SPRAY NOZZLE AT YOURSELF OTHER PERSONS OR ANIMALS Step 6 Turn on the pressure washer The motor starts only if the trigger of the gun is pulled and shuts off when the trigger is released Step 1 Piugthe Ground Step 2 ifthe GFC ligt Step 3 Press the Fault Circuit Interrupter glows press the Test Reset button to restore GFCI into a working outlet button until the light goes power to the washer out WORKING WITH DETERGENTS Detergents can only be applied at low pressure Step 1 Install the Wash brush or Quattro nozzle For best results see Cleaning Tips on pages 9 amp 10 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 Special formula won t clog the suction tube filter and will protect the internal parts of the Step 2 Fill a container with Karcher pressure washer for a longer life For Karcher detergent Place the filter end of detergent Detergents check your retailer or call suction tube into the c
4. minute into an empty e Always prevent debris from being drawn 5 gallon container into the unit by using a clean water source e Save these instructions ASSEMBLY INSTRUCTIONS Step 1 Step 2 Step 3 ASSEMBLY INSTRUCTIONS continued Step 4 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 Step 5 mS 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 clock wise until tight Note spray wand extension must be attached to use accessories Step 6 Attach quattro nozzle for four different spray settings OPERATING INSTRUCTIONS Step 1 Connect the high pressure hose to the high pressure outlet Step 2 Connect the garden hose to the water inlet _a Step 3 Step 4 Connect garden hose to the cold water Plug the power cord into the power outlet source and turn water on completely Trigger the gun to eliminate trapped air wait for a steady flow of water to emerge from the spray nozzle OPERATING INSTRUCTIONS continued y M y M M A M High pressure High pressure Rotating jet for Low pressure pencil jet fan
5. KARCHER K 3 97 M High Pressure Washer Operator Manual OVETV OW Lenee 2 PreCautions scccsssccceseeeseseees 2 4 Assembly Instructions 4 5 Operating Instructions 5 6 GFCI Instructions ieina 6 Using the Accessories 6 Working with Detergents 7 Shut Down and Clean Up 8 Taking a Break cccsscsecssceesees 8 Winterizing and Long Term SOAGE ninnaa aE 8 Maintenance Instructions 9 Cleaning Tips eee 9 10 Optional Cleaning Accessories 10 Troubleshooting e 11 12 Specifications Operating pressure 1600 PSI Water volume 1 6 GPM Voltage 120 V Amp draw 14 AMPS In USA call 1 800 537 4129 or visit our website www karcher usa com Part No 1 423 105 0 Manual Part No 5 960 771 0 01 03EN Model K 3 97 M OVERVIEW Item Description 1 Power cord with Ground Fault Circuit Interrupter GFCI Trigger gun Trigger gun safety lock High pressure hose Water inlet with filter and garden hose connector Transport handle Accessory compartment Detergent suction tube with filter High pressure outlet On Off switch Spray wand extension must be used for attaching accessories 12 Wash brush 13 Quattro nozzle 7 N ON ISO MND t ATU Never point nozzle at people or animals Never drink alcohol or use drugs while operating this equipment Never operate while standing in wa
6. Up to 25 ft 12 3 AWG 25 to 50 ft 10 3 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 GFCl 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 resi
7. ary 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 experiment with different settings on the Quattro Nozzle Patio amp Lawn Furniture with or without detergent Pre rinse furniture and surrounding area with fresh water If using Karcher All Purpose Cleaner place detergent suction tube directly into cleaning solution and apply to surface at low pressure Allow Karcher 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 e Before cleaning any surface an inconspic uous area should be cleaned to test spray pattern and distance for maximum clean ing results e f painted surfaces are pealing or chipping use extreme caution as pressure washer may remove the loose paint from the surface e While using on surfaces which might come in contact with food Flush surfaces with plenty of drinking water OPTIONAL CLEANING ACCESSORIES Optional cleaning accessories are available to further enhance your cleaning capabilities See accessories order form for produ
8. ct descriptions and ordering instructions e Vario Spray Wand e House Washing Wand e Extension Wand 20 inches e Flexible Spray Wand e Underbody Spray Wand e 4 Piece Extension Wand 66 inches e Wet Sandblasting Attachment e Pipe Drain Cleaner e Water Suction Hose With Filter e Extension Hose 25 e Rotating Wash Brush e K12 Surface Cleaner In USA call 1 800 537 4129 or visit our website www karcher usa com TROUBLESHOOTING Disconnect the machine from the power source before making any repair Symptom Motor will not start Unit does not reach high pressure Output pressure varies high and low On Off switch is in the OFF O position Solution Turn switch to the ON I position Power cord is not plugged in Plug in power cord Extension cord is too long Extension cord is not proper gauge Extension cord is damaged Replace extension cord with either a 25 ft 12 3 gauge cord or a 50 ft 10 3 gauge cord Electrical outlet does not supply adequate power Try a different outlet Ground Fault Circuit Interrupter GFCl tripped Diameter of garden hose is too small Reset breaker power supply or GFCl 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
9. e to low pressure position Discharge nozzle is obstructed Blow out or remove debris with fine needle Detergent container is empty Loose fittings Add more detergent ighten fittings Missing worn rubber washer Quattro Nozzle not properly attached Insert new washer Insert the Quattro Nozzle into the spray wand extension Push in and turn clockwise to lock Quattro Nozzle in place Spray wand extension not properly attached Slide 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 Broken o ring Pump is sucking air Loose fittings Call Karcher customer service hotline and order an 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 Check that all fittings are tight Water seals are damaged or worn Oil seals are damaged or worn Call service center Call service center If you encounter any additional difficulties not listed please call our service center for help Karcher Customer Support USA 1 800 537 4129
10. ontainer In USA call 1 800 537 4129 or visit our website SS www karcher usa com The following Karcher detergents are available One Gallon ready to use e Vehicle Wash Step 3 Turn on the pressure washer Degreaser Pull trigger to operate unit Liquid detergent All Purpose Cleaner is drawn into the unit and mixed with water House Wash Apply detergent to work area Do not allow Deck Wash detergent to dryonsurface ricer ee Caution Detergent Concentrate Tablets Never use 10 Pack makes 1 1 4 gallon RTU product All Purpose e Bleach Chlorine products and other Degreaser corrosive chemicals e Liquids containing solvents i e paint thinners gasoline oils e Tri sodium phosphate products e Ammonia products e Acid based products These chemicals will harm the unit and will damage the surface being cleaned e Deck and patio Windows and Siding SHUTTING DOWN amp CLEAN UP Step 1 l Step 3 Step 4 Remove detergent suction Turn the switch to Turn off the water Press trigger to tube from container and off O position and source release water insert into 1 gallon of fresh unplug cord from pressure water Siphon water at low pressure for one minute outlet Step 5 Step 6 Step 7 Disconnect the garden Disconnect the high pressure Engage the gun hose from the water inlet hose from the high pressure safety lock on the unit outlet
11. pproximately 3 6 inches from the cleaning surface Always clean from top to bottom and from left to right Cars Boats amp Motorcycles with or without detergent Pre rinse vehicle with fresh water If using Karcher Vehicle or All Purpose Cleaner 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 approxi mately 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 CLEANING TIPS continued Barbecue Grills Outdoor Power Equipment amp Gardening Tools with or without detergent Pre rinse cleaning surface with fresh water If using Karcher All Purpose Cleaner or Degreaser place detergent suction tube directly into cleaning solution and apply detergent at low pressure Allow Karcher 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 necess
12. stance 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 product A Caution e Follow the maintenance instructions specified in the manual e 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 IMPORTANT PRECAUTIONS continued Water Supply Cold Water Only e Water hose must be at least 3 4 inch in The water supply temperature must not diameter exceed 104 F 40 C e Flow rate of water supply must not fall Never use the pressure washer to draw below 2 5 GPM gallons per minute in water contaminated with solvents e g e Flow rate can be determined by running paint thinners gasoline oil etc the water for one
13. ter 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 IMPORTANT PRECAUTIONS Read First A Safety Warnings When using this product basic precautions should always be followed e Read all the instructions before using the product e 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 e To reduce the risk of injury do not operate the machine near children e Learn how to stop the machine and release pressure quickly Be thoroughly familiar with the controls e Stay alert watch what you are doing e Wear safety goggles e 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 e Do not operate the product when fatigued or under the influence of alcohol or drugs e Keep operating area clear of all persons e Do not stand on unstable surfaces Stand with both feet balanced at all times e To reduce the risk of electrocution keep all connections dry and off the ground Do not touch plug with wet hands e 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
14. the cleaning surface be sure to overlap the previous section to eliminate stop marks and ensure a more even clean ing result House Siding with or without detergent Pre rinse cleaning surface with fresh water If using K rcher House or Window and Siding Cleaner 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 approxi mately 6 feet and always apply detergent from bottom to top Allow K rcher House or Window and Siding Cleaner 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 Deck and Patio or 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 Karcher Deck and Patio or 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 a
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