Page 2 - Model K 520 M OVERVIEW
1 NEVER! Model K 520 M OVERVIEW Item Description 1. Vario spray wand2. Power cord with Ground Fault Circuit Interrupter (GFCI)3. Wash brush4. Trigger gun 5. Trigger gun safety lock 6. High pressure hose7. Water inlet8. Retractable handle 9. Detergent suction tube and filter with metering valve 10. H...
Page 3 - IMPORTANT PRECAUTIONS – Read First!; Safety Warnings; Extension Cords; Caution
2 IMPORTANT PRECAUTIONS – Read First! Safety Warnings When using this product, basic precau-tions 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 directed at persons, animals,electrical de...
Page 4 - IMPORTANT PRECAUTIONS –; continued; ASSEMBLY INSTRUCTIONS
3 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 empty5-gallon container. IMPORTANT PRECAUTIONS – continued • Th...
Page 5 - OPERATING INSTRUCTIONS; Step 4
OPERATING INSTRUCTIONS 4 Step 1 Connect the high pressure hose to the unit’s high pressure outlet. Step 2 Install the Wash brush or the Vario spray wand into the wand exten-sion. Push in and turn clockwise to lockspray wand in place. Step 3 Connect garden hose to unit’s water inlet using the quick c...
Page 6 - WARNING
5 The Vario spray wand allows you to adjust the cleaning pressure. To clean at maximum pressure, the Vario wand must be positioned to the high pressure setting (+). To apply detergent, the wand must be positioned to the low pressure setting (-). For lower pressure turnwand collar in the minus (-)dir...
Page 7 - or visit our website:
6 WORKING WITH DETERGENTS Step 2 Fill a container with Karcher detergent. Set metering valve on filter todesired dosage. Place the filter end ofdetergent suction tube into the container. Step 3 Turn on the pressure washer. Pull trigger to operate unit: Liquid detergentis drawn into the unit and mixe...
Page 8 - WINTERIZING AND LONG-TERM STORAGE; Step 2
SHUTTING DOWN & CLEAN-UP 7 WINTERIZING AND LONG-TERM STORAGE 1. Disconnect all water connections.2. Start 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. 4. Store the machine and acces...
Page 9 - CLEANING TIPS; Deck Cleaning
8 CLEANING TIPS Deck Cleaning (with or without detergent)Pre-rinse deck and surrounding area withfresh water. If using Kärcher Deck Wash,place detergent suction tube directly intocleaning solution and apply to surface at lowpressure. For best results, limit your workarea to smaller sections of appro...
Page 10 - CLEANING TIPS –; Patio & Lawn Furniture; OPTIONAL CLEANING ACCESSORIES
9 CLEANING TIPS – continued 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 pre...
Page 11 - TROUBLESHOOTING; Motor will not start.
10 TROUBLESHOOTING Disconnect the machine from the power source before making any repair. Symptom Cause Solution Motor will not start. Unit does not reachhigh pressure. Output pressurevaries high andlow. Extension cord is too long.Extension cord is notproper gauge. Extensioncord is damaged. Replace ...
Page 12 - – continued
11 TROUBLESHOOTING – continued Symptom Cause Solution No detergent. Garden hose connection leaks. Pump is noisy. Water leaks from pump. Oil Drip. Detergent is too thick. Dilute detergent, for best results use Kärcher detergent. Filter on detergent suction tube is clogged. Run warm water through filt...