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K 3.97 M
High Pressure
Washer Operator
Manual
Overview ....................................... 2
Precautions ............................... 2-4
Assembly Instructions ............... 4-5
Operating Instructions............... 5-6
GFCI Instructions ......................... 6
Using the Accessories .................. 6
Working with Detergents.............. 7
Shut Down and Clean-Up ............ 8
Taking a Break ............................. 8
Winterizing and Long-Term
Storage .......................
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Model K 3.97 M OVERVIEW Item Description 1. Power cord with Ground Fault Circuit Interrupter (GFCI) 2. Trigger gun 3. Trigger gun safety lock 4. High pressure hose 5. Water inlet with filter and garden hose connector 6. Transport handle 7. Accessory compartment 8. Detergent suction tube with filter 9. High pressure outlet 10. On/Off switch 11. Spray wand extension (must be used for attaching accessories) 12. Wash brush 13. Quattro-nozzle 2 NEVER! Never point nozzle at people or animals. Never d
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IMPORTANT PRECAUTIONS – Read First! extension cord from the receptacle before 2 Safety Warnings disconnecting the product from the extension When using this product, basic precautions cord. If you are using an extension cord, it should always be followed: should always be completely unwound from • Read all the instructions before using the cable drum. the product. Ground Fault Circuit Interrupter High pressure jets can be dangerous if (GFCI) Protection subject to misuse. The jet must not be T
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IMPORTANT PRECAUTIONS – continued PRECAUTIONS Water Supply (Cold Water Only) Water hose must be at least 3/4 inch in The water supply temperature must not exceed 104°F/40°C. diameter. 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. paint thinners, gasoline, oil, etc. Flow rate can be determined by running the water for one minute into an empty“ Always prevent debris from being
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ASSEMBLY INSTRUCTIONS – continued Step 5 Step 5 Step 5 Step 5 Step 5 Insert the Spray Wand Extension into the trigger gun. Step 4 Step 4 Step 4 Step 4 Step 4 Press in against the spring tension and twist into the Pull out the locking slide from lock position. Turn the Spray Wand Extension Collar the right side of the trigger clock-wise until tight. Note: spray wand extension must gun handle, and insert the be attached to use accessories. small end of the high pressure hose into place. Push the l
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OPERATING INSTRUCTIONS – continued High pressure High pressure Rotating jet for Low pressure pencil jet fan jet cleaning maximum dirt fan jet for cleaning cutting action detergent injection Step 5 Step 5 Step 5 Step 5 Step 5 Turn Quattro Nozzle to desired setting position. Match symbols above. WARNING RISK OF INJECTION OR INJURY-DO 6 NOT DIRECT DISCHARGE STREAM AT PERSONS. TO AVOID SERIOUS INJURY, NEVER POINT SPRAY NOZZLE AT YOURSELF, OTHER PERSONS OR ANIMALS. Step 6 Step 6 Step 6 Step 6 Step
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WORKING WITH DETERGENTS Detergents can only be applied at low pressure (-). Step 1 Step 1 Step 1 Step 1 Step 1 Install the Wash brush or Quattro nozzle. For best results see Cleaning Tips on pages 9 & 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 inte
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SHUTTING DOWN & CLEAN-UP Step 1 Step 1 Step 1 Step 1 Step 1 Step 3 Step 3 Step 3 Step 3 Step 3 Step 4 Step 4 Step 4 Step 4 Step 4 Step 2 Step 2 Step 2 Step 2 Step 2 Remove detergent suction Turn off the water Press trigger to Turn the switch to tube from container and source. release water off (O) position and insert into 1 gallon of fresh pressure. unplug cord from water. Siphon water at low outlet. pressure for one minute. 8 Step 5 Step 5 Step 6 Step 6 Step 7 Step 7 Step 5 Step 5 Step 5 Step 6
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CARE AND MAINTENANCE INSTRUCTIONS Maintenance The unit is maintenance-free. Cleaning the water inlet filter Pull out the water inlet filter with flat-nose pliers and rinse out in warm water. CLEANING TIPS Deck Cleaning Cement Patios, Brick and Stone (with or without detergent) (with or without detergent) Pre-rinse deck and surrounding area with Pre-rinse cleaning surface with fresh water. fresh water. If using Kärcher Deck and Patio If using Kärcher Deck and Patio or All Cleaner, place detergen
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CLEANING TIPS – continued Barbecue Grills, Outdoor Power Patio & Lawn Furniture (with or without detergent) Equipment & Gardening Tools Pre-rinse furniture and surrounding area (with or without detergent) with fresh water. If using Kärcher All Pre-rinse cleaning surface with fresh water. Purpose Cleaner, place detergent suction If using Kärcher All Purpose Cleaner or tube directly into cleaning solution and apply Degreaser, place detergent suction tube to surface at low pressure. Allow Kärcher A
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TROUBLESHOOTING Disconnect the machine from the power source before making any repair. Symptom Symptom Symptom Symptom Symptom Cause Cause Cause Cause Cause Solution Solution Solution Solution Solution Motor will not start On/Off switch is in the “OFF” (O) Turn switch to the “ON” (I) position. position Power cord is not plugged in. Plug in power cord. Extension cord is too long. Replace extension cord with either Extension cord is not proper gauge. “a 25 ft. 12/3 gauge cord or a 50 Extension cor
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TROUBLESHOOTING – continued Symptom Cause Solution No detergent. Detergent suction tube not properly Check connection. connected to the machine. Detergent is too thick. Dilute detergent, for best results use Kärcher detergent. Filter on detergent suction tube is Run warm water through filter to clogged. remove debris. Damaged or clogged detergent Remove obstruction or replace suction tube. detergent suction tube. Quattro Nozzle is in high pressure Turn Quattro Nozzle to low position. pressure po
