Karcher K 3.78 - Manuals - manualsarea.com

Page 2 - 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 operate pressure washer without the water turned on Never use hot ...

Page 3 - Extension Cords; Grounding Instructions; Caution

3 IMPORTANT PRECAUTIONS – Read First! Safety Warnings When using this product, basic precautionsshould always be followed:• Read all the instructions before using theproduct. • High pressure jets can be dangerous ifsubject to misuse. The jet must not bedirected at persons, animals, electricaldevices...

Page 4 - continued; PRECAUTIONS

4 ASSEMBLY INSTRUCTIONS 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. • The water sup...

Page 5 - OPERATING INSTRUCTIONS; Step 5; OFF; ON

5 OPERATING INSTRUCTIONS Step 3 Connect the garden hose to the water inlet. Step 4 Connect garden hose to the cold watersource and turn water on completely.Plug the power cord into the power outlet. Step 6 Turn on the pressure washer (I). The motor starts only if thetrigger of the gun is pulled and ...

Page 6 - Warning

6 GFCI INSTRUCTIONS USING THE ACCESSORIES The spray wand allows you to adjust the cleaning pressure. To clean at maximumpressure, the spray wand must be positioned to the high pressure setting (+).To apply detergent, the wand must be positioned to the low pressure setting (-). Vario power spray wand...

Page 7 - Always Use Karcher Detergents for Best Results.; WORKING WITH DETERGENTS; Step 3

7 For best results see Cleaning Tips on pages 9 & 10 for specific informationon how to clean different surfaces. Always Use Karcher Detergents for Best Results. Karcher biodegradable detergents are specially formulated to protect the environment and yourpressure washer. Special formula won’t clo...

Page 8 - SHUTTING DOWN & CLEANUP

8 Step 6 Disconnect the high pressure hosefrom the high pressure outlet. Step 1 Release trigger (A)and engage gunsafety lock (B). 1. Disconnect all water connections.2. Turn on the machine for a few seconds, until the water which had remained inthe pump exits. Turn off immediately. 3. Do not allow h...

Page 9 - CLEANING TIPS; Cement Patios, Brick and Stone

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 directlyinto cleaning solution and apply to surface atlow pressure. For best results, limit yourwork area to smaller sections of approx...

Page 10 - Patio & Lawn Furniture; CLEANING TIPS –; Recommendations; OPTIONAL CLEANING ACCESSORIES

10 Barbecue Grills, Outdoor PowerEquipment & Gardening Tools (with or without detergent)Pre-rinse cleaning surface with fresh water. Ifusing Kärcher All Purpose Cleaner orDegreaser, place detergent suction tubedirectly into cleaning solution and applydetergent at low pressure. Allow Kärcherdeter...

Page 11 - TROUBLESHOOTING

11 TROUBLESHOOTING Disconnect the machine from the power source before making any repair. Symptom Motor will not start Unit does not reach highpressure. Output pressure varies highand low. Cause On/Off switch is in the “OFF” (O)position. Power cord is not plugged in. Extension cord is too long.Exten...

Page 12 - TROUBLESHOOTING –

12 TROUBLESHOOTING – continued If you encounter any additionaldifficulties not listed, please call ourservice center for help. Karcher Customer Support USA In USA Call: 1-800-537-4129 or visit our website: www.karcher-usa.com Solution Check connection. Dilute detergent, for best resultsuse Kärcher d...