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Model K 502 M Part No. 1.069-935.0
High Pressure Washer Operator Manual
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . .3
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . .4
GFCI Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Using the Accessories . . . . . . . . . . . . . . .
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Model K 502 M OVERVIEW Item Description 1. Vario spray wand 2. Power cord with Ground Fault Circuit Interrupter (GFCI) 3. Trigger gun 4. Trigger gun safety lock 5. High pressure hose 6. Water inlet 7. Transport bracket 8. Hose caddy 9. Detergent suction tube and filter with metering valve 10. High pressure outlet (not pictured) 11. On/Off switch 12. Spray wand extension 13. Quick-connect adapter and coupling 14. Wash brush 11 10 8 7 9 6 1 2 14 13 1 12 3 4 5 NEVER! Never point nozz
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IMPORTANT PRECAUTIONS – Read First! disconnect the extension cord from the Safety Warnings receptacle before disconnecting the When using this product, basic precau- product from the extension cord. If you are tions should always be followed: using an extension cord, it should always Read all the instructions before using be completely unwound from the cable the product. drum. High pressure jets can be dangerous if subject to misuse. The jet must not Ground Fault Circuit Interrupter be di
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IMPORTANT PRECAUTIONS – continued Water Supply (Cold Water Only) Water hose must be at least 3/4 inch in The water supply temperature must not diameter. exceed 104°F/40°C. Flow rate of water supply must not fall Never use the pressure washer to draw in below 2.5 GPM (gallons per minute). water contaminated with solvents, e.g. paint Flow rate can be determined by running thinners, gasoline, oil, etc. the water for one minute into an empty Always prevent debris from being drawn into 5
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OPERATING INSTRUCTIONS Step 1 Connect the high pressure hose to the Step 2 Install the Vario spray wand unit’s high pressure outlet. into the wand extension. Push in and turn clockwise to lock spray wand in place. 4 Step 3 Connect the garden hose to the Step 4 Connect garden hose to the water inlet using the quick connect adapter and cold water source and turn water on coupling. completely. Step 5 Plug the power cord into the power out- Step 6 Turn on the pressure let. Trigger the gun to elimi
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GFCI INSTRUCTIONS Note: The actual appearance of the GFCI may be different from this illustration. Step 1 Plug the Ground Step 2 Press “TEST”, then Fault Circuit Interrupter (GFCI) press “RESET” to assure proper into a working outlet. connection to power. USING THE ACCESSORIES Vario spray wand 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 p
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WORKING WITH DETERGENTS Detergents can only be applied at low pressure (-). For best results see Cleaning Tips on pages 8 & 9 for specific information on how to clean different surfaces. Step 1 Install the Wash brush or the Vario Always Use Karcher spray wand. Set the Vario spray wand to the Detergents for Best Results. low pressure setting (-) by turning the wand Karcher biodegradable detergents are collar. The wand must be set in the low pres- specially formulated to protect the environ- su
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SHUTTING DOWN & CLEAN-UP Step 1 Remove de- Step 2 Step 3 Step 4 tergent suction tube from Turn the switch to Turn off the water Press trigger to container and insert into off (O) position source. release water 1 gallon of fresh water. and unplug cord pressure. Siphon water at low pres- from outlet. sure for one minute. 7 Step 5 Disconnect the Step 6 Disconnect the high pressure hose from the garden hose from the high pressure outlet and engage the gun safety lock. water inlet on the unit. T
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CLEANING TIPS Cement Patios, Deck Cleaning (with or without detergent) Brick and Stone Pre-rinse deck and surrounding area with (with or without detergent) fresh water. If using Kärcher Deck Wash, Pre-rinse cleaning surface with fresh water. place detergent suction tube directly into If using Karcher All Purpose Cleaner, place cleaning solution and apply to surface at low detergent suction tube directly into cleaning pressure. For best results, lim
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CLEANING TIPS – continued Barbecue Grills, Outdoor Power Patio & Lawn Furniture (with or without detergent) Equipment & Pre-rinse furniture and surrounding area with Gardening Tools fresh water. If using Kärcher All Purpose (with or without detergent) Cleaner, place detergent suction tube direct- Pre-rinse cleaning surface with fresh water. If ly into cleaning solution and apply to surface using Kärcher All Purpose Cleaner or at low pressure. Allow Kärcher All Purpose Degreaser, place detergen
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TROUBLESHOOTING Disconnect the machine from the power source before making any repair. Symptom Cause Solution On/Off switch is in the Turn switch to the “ON” (I) position. Motor will not start. “OFF” (O) position. Power cord is not plugged in. Plug in power cord. Extension cord is too long. Replace extension cord with either a 25 ft. 12/3 gauge cord or a 50 ft. Extension cord is not 10/3 gauge cord. proper gauge.Extension cord is damaged. Electrical outlet does not Try a diff
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TROUBLESHOOTING – continued Symptom Cause Solution Detergent suction tube not Check connection. No detergent. properly connected to the machine. Detergent is too thick. Dilute detergent, for best results use Kärcher detergent. Filter on detergent suction Run warm water through filter tube is clogged. to remove debris. Damaged or clogged Remove obstruction or detergent suction tube. replace detergent suction tube. Spray wand is in Turn spray wand tip to high pressure position. low pressure po
