Hypertherm MAX42, Service Manual

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TABLE OF CONTENTS
MAX42 Service Manual
Antorchas de encendido instantáneo ........................................................................................ c-4
Los rayos del arco pueden producir quemaduras en los ojos y en la piel ....................................... c-4
Protección para los ojos, Protección para la piel, Área de corte ............................................... c-4
Seguridad de toma a tierra ............................................................................................................... c-4
Cable de trabajo, Mesa de trabajo, Potencia primaria de entrada ............................................ c-4
Seguridad de los equipos de gas comprimido ................................................................................. c-5
Los cilindros de gas pueden explotar si están dañados .................................................................. c-5
El ruido puede deteriorar la audición ............................................................................................... c-5
Operación de marcapasos y de audífonos ...................................................................................... c-5
Un arco plasma puede dañar tubos congelados .............................................................................. c-5
SECTION 1 INTRODUCTION ....................................................................................................... 1-1
Read This First ................................................................................................................................. 1-2
Safety ............................................................................................................................................... 1-3
Warning - Instant-On Torches .......................................................................................................... 1-3
Description ....................................................................................................................................... 1-4
Power Unit ................................................................................................................................. 1-4
Major Subassemblies and Components .................................................................................... 1-4
Specifications ................................................................................................................................... 1-5
Power Unit ................................................................................................................................. 1-5
Disconnect Switch Box .............................................................................................................. 1-5
PAC121T Trigger Torch ............................................................................................................ 1-6
PAC121P Pushbutton Torch ..................................................................................................... 1-6
PAC121M Machine Torch ......................................................................................................... 1-6
SECTION 2 THEORY OF OPERATION ......................................................................................... 2-1
General ............................................................................................................................................. 2-2
Principles of Operation ...................................................................................................................... 2-2
Circuit Descriptions ........................................................................................................................... 2-3
Control Circuits ........................................................................................................................... 2-3
Power Circuits ............................................................................................................................ 2-4
SECTION 3 MAINTENANCE ......................................................................................................... 3-1
General ............................................................................................................................................. 3-2
Test Equipment & Tools .................................................................................................................... 3-2
Visual Inspection ............................................................................................................................... 3-2
Checkout Procedures ........................................................................................................................ 3-2
Initial Resistance Checks ........................................................................................................... 3-3
Corrective Maintenance Checks ................................................................................................. 3-7
Sequence of Operation ............................................................................................................. 3-16
PAC121T Torch Parts Removal and Replacement ......................................................................... 3-18
Torch Main Body Removal and Replacement .......................................................................... 3-18
Torch Switch Removal and Replacement ................................................................................ 3-19
PAC121P Torch Parts Removal and Replacement ........................................................................ 3-20
Torch Main Body Removal and Replacement .......................................................................... 3-20
Torch Switch Removal and Replacement ................................................................................ 3-20
PAC121M Torch Parts Removal and Replacement ........................................................................ 3-22
Torch Main Body Removal and Replacement .......................................................................... 3-22
Filter/Regulator Pressure Adjustment ............................................................................................. 3-24
Filter/Regulator Filter Cleaning or Replacement ............................................................................. 3-24
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