Karcher K 502 User's Manual
Contents
1. e Extension Hose 25 e Rotating wash brush In USA Call 1 800 537 4129 or visit our website www karcher usa com TROUBLESHOOTING Disconnect the machine from the power source before making any repair Symptom Motor will not start Unit does not reach high pressure Output pressure varies high and low On Off switch is in the OFF O position Power cord is not plugged in Solution Turn switch to the ON I position Plug in power cord Extension cord is too long Extension cord is not proper gauge Extension cord is damaged Replace extension cord with either a 25 ft 12 3 gauge cord or a 50 ft 10 3 gauge cord Electrical outlet does not supply adequate power Try a different outlet Ground Fault Circuit Interrupter GFCI tripped Diameter of garden hose is too small Reset breaker power supply or GFCI Replace with a 3 4 inch garden hose Water supply is restricted Not enough inlet water supply Check garden hose for kinks leaks and blockage Open water source full force Water inlet filter is clogged Remove filter and rinse out in warm water Spray wand is in low pressure position Wash brush is attached Not enough inlet water supply Turn spray wand to high pressure position Attach vario spray wand Turn water on full force Check garden hose for kinks leaks or blockage Pump is sucking air Check t2. mower blades wheel barrels or other non sensitive metal surfaces you may want to use the Karcher Dirtblaster Wand Patio amp Lawn Furniture with or without detergent Pre rinse furniture and surrounding area with fresh water If using Karcher All Purpose Cleaner place detergent suction tube direct ly into cleaning solution and apply to surface at low pressure Allow Karcher All Purpose Cleaner to remain on surface 1 3 minutes Do not allow detergent to dry on surface If needed use special Wash Brush Attachment to remove stubborn dirt Rinse at high pres sure in a sweeping motion keeping the spray nozzle approximately 3 6 inches from the cleaning surface For best results clean from top to bottom and from left to right Recommendations e Before cleaning any surface an inconspicu ous area should be cleaned to test spray pattern and distance for maximum cleaning results e If painted surfaces are pealing or chipping use extreme caution as pressure washer may remove the loose paint from the surface OPTIONAL CLEANING ACCESSORIES Optional cleaning accessories are available to further enhance your cleaning capabilities See accessories order form for product descriptions and ordering instructions e Wash Brush e House Washing Wand e Extension Wand e Dirtblaster Wand e Flexible Spray Wand e Underbody Spray Wand e Telescopic Spray Wand e Pipe Drain Cleaner Detergent Foamer Attachment e Water Suction Hose
3. 8 amp 9 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 environ ment and your pressure washer The special formula won t clog the suction tube filter and will protect the internal parts of the pres 6 sure washer for a longer life For Karcher Detergents check your retailer or call In USA Call 1 800 537 4129 or visit our website www karcher usa com The following Karcher detergents are available e Vehicle Wash e Degreaser All Purpose Cleaner House Wash Deck Wash A Caution Never use Bleach Chlorine products and other corrosive chemicals e Liquids containing solvents i e paint thinners gasoline oils Tri sodium phosphate products Ammonia products Acid based products These chemicals will harm the unit and will damage the surface being cleaned SHUTTING DOWN amp 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 Step 5 Disconnect the Step 6 Disconnect the high pressure hose from the garden hose from
4. KARCHER Model K 502 M cans 022950 High Pressure Washer Operator Manual OVEIVICWS 22 4 at A AAA irs EEEE E Es i 1 Precautions 00 a i ii a h a aai a 1 3 Assembly Instructions anaana 3 Operating Instructions n anaana aeea 4 GFCI Instructions nananana aaa 5 Using the Accessories anaana aana aaa 5 Working with Detergents 022 005 6 Shut Down and Clean Up 2200055 7 Taking a Break 0 0 0 eee 7 Winterizing and Long Term Storage 7 Cleaning TipS 2 0 0 0 cece eee 8 9 Optional Cleaning Accessories 9 Troubleshooting 000 cee eee eee 10 11 Specifications Operating pressure 1500 PSI Water volume 1 7 GPM Voltage 120 V Amp draw 13 AMPS In USA Call 1 800 537 4129 or visit our website www karcher usa com 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 NEVER point nozzle at people or animals drink alcohol or use drugs while operating this equipment operate while standing in water touch plug with wet
5. Spray wand extension not properly attached Insert new washer Insert the spray wand of your choice into the the wand extension Push in and turn clockwise to lock spray wand in place Insert the spray wand extension into the trigger gun Press in against the spring tension and twist into the lock position Turn the spray wand exten sion collar clockwise until tight Broken o ring Pump is sucking air Loose fittings Call K rcher customer service hotline and order an o ring Check that hoses and fittings are air tight Turn off machine and purge pump by squeezing trigger gun until a steady flow of water emerges through the nozzle Check that all fittings are tight Water seals are damaged or worn Oil seals are damaged or wom In USA Call 1 800 537 4129 or visit our website www karcher usa com Call service center Call service center If you encounter any additional difficulties not listed please call our service center for help Karcher Customer Support USA
6. d align the four holes Hold each four sided nut with one finger while inserting each screw and tighten with a screwdriver Step 3 Pull out the locking slide from Step 4 Insert the Spray Wand Extension the right side of the trigger gun handle into the trigger gun Press in against the and insert the small end of the high pres spring tension and twist into the lock posi sure hose into place Push the locking tion Turn the Spray Wand Extension Collar slide back into the trigger gun to lock the clockwise until tight hose in position 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 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 eliminate trapped air wait washer I The motor starts only if the for a steady flow of water to emerge from the trigger of the gun is pulled and shuts off spray nozzle when the trigger is released GFCI INSTRUCTIONS m mA 5 Note x amp The actual appearance 0 of the GFCI may be different from illustra
7. d for outdoor use These extension cords are identified by the marking Acceptable for use with outdoor appliances store indoors while not in use Use only extension cords having an electrical rating not less than the rating of the product Do not use damaged extension cords Examine extension cord before using and replace if damaged Do not abuse extension cord and do not yank on any cord to disconnect Keep cord away from heat and sharp edges Always disconnect the extension cord from the receptacle before disconnecting the product from the extension cord If you are using an extension cord it should always be completely unwound from the cable drum Ground Fault Circuit Interrupter GFCI Protection This unit is supplied with a portable Ground Fault Circuit Interrupter GFCI UL indicates that the power cord has been investigated for compliance with the applicable provisions of UL 943 Third Edition Standard for Ground Fault Circuit Interrupters and other applicable standards If power is interrupted in the line the GFCI will automatically reclose the circuit to the load after power is restored Depending on the GFCI model it may be necessary to manually operate the reset button to restore power to the GFCI load circuit This Product Is Double Insulated In a double insulated product two systems of insulation are provided instead of grounding No grounding method is provided on a double insulated product nor sho
8. hands let electrical connections rest in water operate pressure washer without the water turned on use hot water IMPORTANT PRECAUTIONS Read First dN Safety Warnings When using this product basic precau tions should always be followed e Read all the instructions before using the product e High pressure jets can be dangerous if subject to misuse The jet must not be directed at persons animals electrical devices or the machine itself e To reduce the risk of injury do not operate the machine near children e Learn how to stop the machine and release pressure quickly Be thoroughly familiar with the controls e Stay alert watch what you are doing e Wear safety goggles irre 1 e Do not use acids solvents or any flammable material in this product These products can cause physical injuries to the operator and irreversible damage to the machine e Do not operate the product when fatigued or under the influence of alcohol or drugs e Do not stand on unstable surfaces Stand with both feet balanced at all times e To reduce the risk of electrocution keep all connections dry and off the ground Do not touch plug with wet hands e The Gun Safety Lock PREVENTS the trigger from accidentally being engaged This safety feature DOES NOT lock trigger in the on position Extension Cords Use a sufficient gauge Up to 25 ft 12 3 AWG 25 to 50 ft 10 3 AWG Use only extension cords that are intende
9. hat hoses and fittings are air tight Turn off machine and purge pump by squeezing trigger gun until a steady flow of water emerges through the nozzle Water inlet filter is clogged Discharge nozzle is obstructed Remove filter and rinse out in warm water Blow out or remove debris with a fine needle Calcified gun hose or spray wand Run distilled vinegar through detergent suction tube TROUBLESHOOTING continued Symptom No detergent Garden hose connection leaks Spray wand or Spray wand extension leaks Pump is noisy Water leaks from pump Oil Drip Detergent suction tube not properly connected to the machine Solution Check connection Detergent is too thick Dilute detergent for best results use K rcher detergent Filter on detergent suction tube is clogged Run warm water through filter to remove debris Damaged or clogged detergent suction tube Remove obstruction or replace detergent suction tube Spray wand is in high pressure position Turn spray wand tip to low pressure position Discharge nozzle is obstructed Detergent container is empty Blow out or remove debris with fine needle Add more detergent Detergent filter valve is at lowest setting Loose fittings Set detergent filter valve to a high er setting Tighten fittings Missing worn rubber washer Spray wand not properly attached
10. les with or without detergent Pre rinse vehicle with fresh water If using Karcher Vehicle Wash place detergent suc tion tube directly into cleaning solution and apply to surface at low pressure For best results clean one side of vehicle at a time and always apply detergent from bottom to top do not allow detergent to dry on sur face If needed use special Wash Brush Attachment to remove stubborn dirt Rinse at high pressure in a sweeping motion keep ing the spray nozzle approximately 6 8 inch es from the cleaning surface distance should increase when rinsing pin striping or other sensitive surfaces Always clean from top to bottom and from left to right For best results wipe surface dry with a cham ois or soft dry cloth CLEANING TIPS continued Barbecue Grills Outdoor Power Equipment amp Gardening Tools with or without detergent Pre rinse cleaning surface with fresh water If using K rcher All Purpose Cleaner or Degreaser place detergent suction tube directly into cleaning solution and apply detergent at low pressure Allow K rcher detergent to remain on surface 1 3 minutes Do not allow detergent to dry on surface Rinse at high pressure keeping the spray nozzle approximately 3 6 inches from the cleaning surface For removing extremely stubborn dirt it may be necessary to move the spray nozzle even closer to the surface for greater dirt cutting action To remove caked on mud from garbage cans lawn
11. the high pressure outlet and engage the gun safety lock water inlet on the unit TAKING A BREAK five minutes or more Step 1 Step 2 Engage gun Turn pressure safety lock washer to off O position WINTERIZING AND LONG TERM STORAGE 1 Disconnect all water connections 4 Store the machine and accessories in 2 Start the machine for a few seconds until a room which does not reach freezing the water which had remained in temperatures the pump exits Turn off immediately Caution Failure to follow the above 3 Do not allow high pressure hose to directions will result in damage to the become kinked pump assembly and accessories CLEANING TIPS Deck Cleaning with or without detergent Pre rinse deck and surrounding area with fresh water If using Karcher Deck Wash place detergent suction tube directly into cleaning solution and apply to surface at low pressure For best results limit your work area to smaller sections of approximately 25 square feet Allow Karcher Deck Wash to remain on surface 1 3 minutes Do not allow detergent to dry on surface Rinse at high pressure in a long sweeping motion keeping the spray nozzle approximately 3 6 inches from the cleaning surface Always clean from top to bottom and from left to right When moving on to a new section of the cleaning surface be sure to overlap the pre vious section to eliminate stop marks and ensure a more even cleaning result Ho
12. tion Step 1 Plug the Ground Step2 Press TEST then Fault Circuit Interrupter GFCI press RESET to assure proper into a working outlet connection to power USING THE ACCESSORIES EOR EVANS 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 higher pressure turn wand collar in the plus direction For lower pressure turn wand collar in the minus direction M LLLI _ et Lyd AN WARNING TO AVOID SERIOUS INJURY NEVER POINT SPRAY NOZZLE AT YOURSELF OTHER PER SONS OR ANIMALS WORKING WITH DETERGENTS Detergents can only be applied at low pressure Step 1 Install the Wash brush or the Vario spray wand Set the Vario spray wand to the low pressure setting by turning the wand collar The wand must be set in the low pres sure position to apply detergents detergent Set metering valve on filter to desired dosage Place the filter end of detergent suction tube into the container Step 3 Turn on the pressure washer Pull trigger to operate unit Liquid detergent is drawn into the unit and mixed with water Apply detergent to work area Do not allow detergent to dry on surface For best results see Cleaning Tips on pages
13. uld a method for grounding be added to the product Servicing a double insulated product requires extreme care and knowledge of the system and should be done only by qualified service personnel Replacement parts for a double insulated product must be identical to the parts they replace A double insulated product is marked with the words DOUBLE INSULATED A Caution e Follow the maintenance instructions specified in the manual e This machine has been designed for use with cleaning detergent sup plied or recommended by the manu facturer The use of other cleaning detergents may affect the operation of the machine and void the warran ty IMPORTANT PRECAUTIONS continued Water Supply Cold Water Only e Water hose must be at least 3 4 inch in e The water supply temperature must not diameter exceed 104 F 40 C e Flow rate of water supply must not fall e Never use the pressure washer to draw in below 2 5 GPM gallons per minute water contaminated with solvents e g paint e Flow rate can be determined by running thinners gasoline oil etc the water for one minute into an empty e Always prevent debris from being drawn into 5 gallon container the unit by using a clean water source ASSEMBLY INSTRUCTIONS Step 1 Place the transport handle onto Step 2 Slide the hose caddy into the slots the mounting brackets on the sides of the on the transport handle and snap into place washer an
14. use Siding with or without detergent Pre rinse cleaning surface with fresh water If using Karcher House Wash place deter gent suction tube directly into cleaning solu tion and apply to surface at low pressure for best results limit your work area to sections of approximately 6 feet and always apply detergent from bottom to top Allow Karcher House Wash to remain on surface 1 3 minutes Do not allow detergent to dry on surface if surface appears to be drying simply wet down surface with fresh water If needed use special Wash Brush Attachment to remove stubborn dirt Rinse at high pressure from top to bottom in an even sweeping motion keeping the spray nozzle approximately 6 inches from the cleaning surface Cement Patios Brick and Stone with or without detergent Pre rinse cleaning surface with fresh water If using Karcher All Purpose Cleaner place detergent suction tube directly into cleaning solution and apply to surface at low pres sure For best results limit your work area to smaller sections of approximately 25 square feet Allow Karcher All Purpose Cleaner to remain on surface 1 3 minutes Do not allow detergent to dry on surface Rinse at high pressure in a sweeping motion keeping the spray nozzle approxi mately 3 6 inches from the cleaning surface Always clean from top to bottom and from left to right For removing extremely stub born stains use Karcher Dirtblaster Wand Cars Boats amp Motorcyc
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