Page 2 - Model K 3.97 M OVERVIEW
2 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 Never Never Never Never operate pressure washer without the water ...
Page 3 - IMPORTANT PRECAUTIONS –; Safety Warnings; Extension Cords; Caution
3 IMPORTANT PRECAUTIONS – Read First! 2 Safety Warnings When using this product, basic precautionsshould always be followed:• Read all the instructions before usingthe product. • High pressure jets can be dangerous ifsubject to misuse. The jet must not bedirected at persons, animals, electricaldevic...
Page 4 - IMPORTANT PRECAUTIONS –; continued; PRECAUTIONS; Save these instructions!; ASSEMBLY INSTRUCTIONS
4 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. Step 1 Step 1 Step 1 Step 1 Step 1 IM...
Page 5 - ASSEMBLY INSTRUCTIONS –; OPERATING INSTRUCTIONS
5 ASSEMBLY INSTRUCTIONS – continued OPERATING INSTRUCTIONS Step 4 Step 4 Step 4 Step 4 Step 4 Pull out the locking slide fromthe right side of the triggergun handle, and insert thesmall end of the highpressure hose into place.Push the locking slide backinto the trigger gun to lock thehose in positio...
Page 6 - OPERATING INSTRUCTIONS –; GFCI INSTRUCTIONS
6 OPERATING INSTRUCTIONS – continued Step 5 Step 5 Step 5 Step 5 Step 5 Turn Quattro Nozzle to desired setting position. Match symbols above. Step 6 Step 6 Step 6 Step 6 Step 6 Turn on the pressure washer. The motor starts only if the trigger of the gun ispulled and shuts off when the trigger isrele...
Page 7 - WORKING WITH DETERGENTS; or visit our website:
7 For best results see CleaningTips on pages 9 & 10 for specificinformation on how to cleandifferent surfaces. Always Use Karcher Detergents for BestResults. Karcher biodegradable detergentsare“specially formulated to protect theenvironment and your pressure washer.Special formula won’t clog the...
Page 8 - WINTERIZING AND LONG-TERM STORAGE
8 Step 6 Step 6 Step 6 Step 6 Step 6 Disconnect the high pressurehose from the high pressureoutlet. Step 1 Step 1 Step 1 Step 1 Step 1 Engage the gunsafety lock. 1. Disconnect all water connections.2. Turn on the machine for a few seconds , until the water which had remained inthe pump exits. Turn o...
Page 9 - CLEANING TIPS; Cement Patios, Brick and Stone; CARE AND MAINTENANCE INSTRUCTIONS
9 Deck Cleaning (with or without detergent) Pre-rinse deck and surrounding area withfresh water. If using Kärcher Deck and PatioCleaner, place detergent suction tube direct-ly into cleaning solution and apply to surfaceat low pressure. For best results, limit yourwork area to smaller sections of app...
Page 10 - CLEANING TIPS –; Patio & Lawn Furniture; OPTIONAL CLEANING ACCESSORIES
10 Barbecue Grills, Outdoor PowerEquipment & Gardening Tools (with or without detergent) Pre-rinse cleaning surface with fresh water.If using Kärcher All Purpose Cleaner orDegreaser, place detergent suction tubedirectly into cleaning solution and applydetergent at low pressure. Allow Kärcherdete...
Page 11 - TROUBLESHOOTING
11 TROUBLESHOOTING Disconnect the machine from the power source before making any repair. S y m p t o m S y m p t o m S y m p t o m S y m p t o m S y m p t o m Motor will not start Unit does not reach highpressure. Output pressure varies highand low. C a u s e C a u s e C a u s e C a u s e C a u s e...
Page 12 - TROUBLESHOOTING –
12 TROUBLESHOOTING – continued If you encounter any additional difficulties not listed, please call our ser vice center for help. Karcher Customer Support USA 1-800-537-4129 Solution Check connection. Dilute detergent, for best resultsuse Kärcher detergent. Run warm water through filter toremove deb...