Kärcher 570 Service Handbook
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Kärcher 570 Service Handbook

Kärcher 570 Service Handbook

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Karcher 570

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Summary of Contents for Kärcher 570

  • Page 1 Service Handbook Karcher 570...
  • Page 2 Karcher 570 Introduction The success of our products is based on the ease and speed with which they are serviced. Proper and effective service is only possible given adequate, practical training and the provision of easily understandable service documentation. This handbook is designed to help you in your daily work, first as operating instructions and then as work of reference.

  • Page 3: Table Of Contents

    Contents Karcher 570 Page ............Functional faults Schematic arrangement Relief valve does not lift Operation with mains water supply Detergent not drawn in 2. Operation with suction feed Air drawn in with detergent Operation with detergent Water in detergent container 5.

  • Page 4: Schematic Arrangement

    2-way nozzle. the water delivered by the pump. On the Karcher 570 cleaner, the amount of deter- Operation with suction feed gent fed can be adjusted by means of a meterin g valve.

  • Page 5: High-Pressure Cleaning Without Detergent

    Operation with detergent Karcher 570 Injector connection Detergent suction hose 2. Low-pressure cleaning with deter- High-pressure cleaning without detergent gent With the 2-way nozzle switchedto low-pres- sure (large nozzle bore), the water passes the 2-way nozzle. The pressure at which the...

  • Page 6: Detergent Metering Valve

    Detergent metering valve 3. Detergent metering valve 4. Nozzle setting Position closed At normal working pressure (with the 2-way nozzle set to full jet 25"), there is no deter- The knob, which is pressed over the mete- ring valve is turned counter-clockwise to gent feed.

  • Page 7: Function Of The Relief Valve

    Function of the relief valve Function with hand gun open At standard working pressure with the pres- sure and flow control valve turned to full The gap between the valve spindle and the water flow the relief valve is closed and the full pump delivery passes to the hand gun.

  • Page 8: Basic Cleaner Settings

    Basic cleaner settings Karcher 570 Checking the pump delivery Fit the HP outlet with the shutoff valve (special too1)connectthe HP hose (without hand gun and spray lance), start the clea- ner. Close the shutoff valve as far as neces- sary to bring the cleaner up to working...

  • Page 9: Checking The Detergent Feed

    Basic cleaner settings 3. Checking the detergent feed Start the cleaner and switch over to "opera- The spindle should the be turned hand tight tion with detergent" by turning the 2-way to close the valve completely and then the nozzle to "CHEM. knob should be pressed back on (the stop limiting the rotation of the knob is at the top With the meteling valve set to position "0,...

  • Page 10: Rapid Trouble-Shooting

    Karcher 570 Rapid trouble shooting Cleaner does not run Cleaner does not come up to pressure Motor does not run Check main fuse or circuit breaker (10-16 Checkwatersupply hose (not less than 112" Amp delayed action). per hour must be available.

  • Page 11: Functional Faults

    Function fault Karcher 570 Functional faults Special screw plug Relief valve does not switch to circulation Fault Relief valve does not close O-ring set defective Remove the housing cover Unscrew the special screw plug. Using an 8mm socketdriver, pressdownthe piston and by turning the piston, unscrew it from the valve spindle.

  • Page 12: Water In Detergent Container

    Karcher 570 Function faults is drawn in when working with 3. Air detergent The detergent hose is not secured firmly. Pull the hose off the nipple, cut off the end Detergent suction hose and press the hose back on. Leakage around the detergent metering Hose nipple spindle.

  • Page 13: Internal Water Leakage

    Internal leakage Karcher 570 Measuring the pumpdelivery indicates a loss of some water. Possible cause: The suction valve, delivery valve or relief valve defective. 1. Checking the suction valve Remove the housing cover. Pull out the valve seat using special tool.

  • Page 14: Checking The Relief Valve

    Internal water leakage 3. Checking the relief valve Unscrew the special screw plug. Using an 8mm socket driver, press the piston downwards and unscrew it from the valve spindle. Piston Pulloutthe pistonwith pliersand removethe spring. Using the special tool, screw out the valve seat.

  • Page 15: Visible Water Leackage

    Visible water leakaae 1. Pressure and Flow Control When there is leakage between the control spindle and the screw plug, then it is neces- sary to replace the special screw plug com- plete. Before screwing in the special screw plug, with a new O-ring.
  • Page 16 Visible water leakage Plastic washer Unscrew the cylinder head screws. Remove the cylinder head. Pull out the HP seal ring by hand or, if this is difficult, use a puller. 3. Leakage at the low-pressure seal Pass a screwdriver through the leakage groove and carefully lever out the aluminium washer.

  • Page 17: Oil Leakage

    Oil leakage Karcher 570 1. Oil drain plug leaking Lay the cleaner on its side and unscrew the oil drain plug. Top off with correct oil. 6.288-050 SAE 15W40 Seal ring Replace the seal ring and screw in the oil drain plug.

  • Page 18: Special Tools

    Oil leakage Pass a screwdriver through the leakage grooves and lever out the oil seal rings. Caution: Take care not to damage the sealing surfaces in the guide. Remove the O-ring. Clean the housing. Note: The new oil seal rings should be soaked in water for some time before they are fitted.
  • Page 19 Karcher 570 Pump runs very noisily Piston jammed, swash plate worn Remove the cylinder head. Use the assembly screws to pull off the housing. Check the pistons for wear and, if necessa- ry, replace the pistons and springs. Carefully lever out the oil seal rings with a screwdriver.
  • Page 20 tools Special Part No. Page Shutoff valve 2.901 -030 O-ring insertion mandrel for relief valve piston 5.901 -104 O-ring insertion mandrel for detergent metering spindle 5.901-102 Valve pliers 4.901 -062 Valveseat removal tool 4.901 -054 Mounting mandrel for HP and oil seal rings. 2.901 -031 Puller for motor cooling 6.81 6-069...

  • Page 21: Technical Data

    Technical datas From Serial No. 426281 Karcher 570 Cleaner type Part No. for cleaner 1.721-120 Circuit diagram Part No. 0.087-354 Voltage Volt 1 150 Type of current 1 I50 Full-load power consumption Amp. HP nozzle Working pressure - full load*)

  • Page 22: Circuit Diagrams

    Karcher 570 Electrical connection 1. Electrical connection The electrical voltage is connected from switch S1. The phase L1 is fed by way of the thermal overloadtrip L1 to the main auxiliary winding The capacitor is connected between the main and auxiliary windings C1 A lead from the main winding of the motor leads back to the neutral terminal N.

  • Page 23: Technical Modifications

    Technical modifications Karcher 570 Modification as of April 1989 Cylinder head Cylinder head Delivery valve Delivery Valve Spring 5.332-1 16 Valve complete Valve Pin 5.584-056 O-ring Valve screw Valve screw 5.583-1 08 Working pressure Working pressure Cleaner's pressure guage 80 bar...
  • Page 24 Alfred Karcher Ges.m.b.H. Tel.: (02 22) 25 15 45 Karcher S.A. (1) 43 99 67 70 Z.A. des Petits Carreaux Obachgasse 26 Fax: (02 22) Far. 5, avenue des Coquelicots A-1220 Wien 22 25154530 F-94865 Bonneuil s. MarneiCEDEX Karcher (Pty.) Ltd. Tel.: (03) 7 95 44 22 Karcher (U.K.) Ltd.

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1.721-120

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