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Husqvarna PW 125 Workshop Manual

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Workshop manual
PW 125



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  Summary of Contents for Husqvarna PW 125

  • Page 1 Workshop manual PW 125 English...
  • Page 2: Table Of Contents

    Workshop Manual PW 125 Contents 1 Introduction and safety regulations ....3 1.1 General ................3 1.2 Revisions ................3 1.3 Target group ..............3 1.4 Safety instructions ............3 1.4.1 General safety instructions ........3 1.4.2 Special safety instructions ........3 2 Repair instructions ........... 4 2.1 Product overview, Cabinet ..........4...
  • Page 3: Introduction And Safety Regulations

    Introduction and safety regulations 1 Introduction and safety regulations 1.1 General 1.4.2 Special safety instructions This workshop manual gives a full description of how to WARNING: Do not use accessories and/or do troubleshooting, repair and test of the high pressure do changes that are not approved by the washer.
  • Page 4: Repair Instructions

    Repair instructions 2 Repair instructions 2.1 Product overview, Cabinet 4 – English...
  • Page 5: Product Overview, Pump Unit

    Repair instructions 2.2 Product overview, Pump unit English – 5...
  • Page 6: Assembly

    Repair instructions 2.3 Assembly CAUTION: Make sure that the gasket for the water inlet is installed correctly inside the front part before mounting the motor pump unit in the front part. CAUTION: Make sure that the power cable is not placed on the internal ribs before assembly.
  • Page 7: To Assemble Cabinet Rear Part

    Repair instructions 2.3.1 To assemble cabinet rear part 1. Tools: Screwdriver PH2. 2. Note that screws has different lengths: - Short type 8 pcs (B) - Long type 2 pcs ( A) for the handle. 6. Install the handle and the 2 long screws (A) to fix the handle.
  • Page 8: To Disassemble The Cabinet Rear Part

    Repair instructions 2.4 To disassemble the cabinet rear 5. The cabinet rear part can now be removed. It allows access to the pump unit. part 1. Tools: Screwdriver PH2. 2. Remove the 2 long screws (A) that fix the handle. 3.
  • Page 9: To Disassemble/Assemble The Switch Box And Cover

    Repair instructions 2.5 To disassemble/assemble the 5. Click on the switch box cover on the switch box and install the 2 screws. switch box and cover 1. Remove the 2 screws (A). 2.6 To disassemble/assemble the start/stop valve 1. Assemble the start/stop valve, see figure below. 2.
  • Page 10: To Diassemble/Assemble The Water/Oil Seal And Valves

    Repair instructions 2.7 To diassemble/assemble the 2. The figure below shows the pump after opening the cylinder head from the cylinder block. water/oil seal and valves 1. To change the oil seals, water seals and pressure valve, use a screw driver to disassemble the parts. Alternatively use a puller, part number 592 94 49-01, to pull out the valves seats (pressure and suction valves).
  • Page 11 CAUTION: Make sure to position the valve bodies correctly according to the water canals inside the cylinder head. This is to optimize the self suction mode. The “leg” of the valve body must not be placed in front of a canal.
  • Page 12: Specifications

    Specifications 3 Specifications 3.1 Technical data Value PW 125 Specification Max 125 bar Voltage 220-240 V Frequency 50-60 Hz Power consumption 6.5 A Power absorbed 1.5 kW Numbers of revolutions 16,000-17,000 rpm./min. Water volume, HP 5.4 l/min Pump pressure 95 bar...
  • Page 13: Appendices And Schemas

    The pump is filled with 55 ml ARTL 32 from the production. In case of service where the oil must be changed, Husqvarna recommends to use 80 ml Bartran HV 46. Alternative oil types that are allowed: • BP, Bartram HV 46 •...
  • Page 14: Start Stop System Guide

    Appendices and schedules 4.2 Start stop System guide 4.2.1 No pressure in system No pressure in system - except inlet pressure 3 bar. Machine switch off. Pump 3 BAR Non return valve Inlet 3 BAR Outlet 3 Bar 4.2.2 Start up-pressure build up Machine switch on / Start up - Pressure build up Pump >5 BAR...
  • Page 15: Pressure Build Up-Opening Pressure/Close Gun

    Appendices and schedules 4.2.3 Pressure build up-opening pressure/close gun Gun close. Pressure build up. Opening pressure. Micro switch is activated Pump 100-125 BAR Non return valve Inlet 3 BAR Outlet 100-125 BAR 4.2.4 Motor stop – Standby pressure Gun close. Motor stops. Pressure in hose decreases to standby pressure Pump pressure is also standby pressure.
  • Page 16: Machine Run

    Appendices and schedules Gun is open - Control piston is closed. Micro switch is deactivated. Motor starts. Pump 3 BAR Non return valve Inlet 3 BAR Outlet 3 BAR 4.2.6 Machine run Machine runs (normal working pressure). Gun is open. Pump 70-95 BAR Non return valve...
  • Page 17: Wiring Diagram

    Appendices and schedules 4.3 Wiring diagram main switch box main switch blue black winding1 wire wire conductor L black wire (optional) black black winding2 T.P conductor L wire wire brown (optional) brown wire blue wire wire micro switch Brown Blue Black Yellow White...
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