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Section 3 maintenance – Hypertherm Powermax900 Service Manual User Manual

Page 28

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3-1

M

AINTENANCE

Service Manual

Section 3 MAINTENANCE

In this section:

Introduction .......................................................................................... 3-2
Routine Maintenance ........................................................................... 3-2

Bowl Draining/Filter Element Cleaning ............................................ 3-2
Removal, Cleaning and Replacement of Cooling Air Filter .............. 3-3

Controls and Indicators ........................................................................ 3-4
Theory of Operation ............................................................................. 3-5
Sequence of Operation ........................................................................ 3-7
Troubleshooting.................................................................................... 3-8

Test Equipment ................................................................................ 3-8
Troubleshooting Procedures............................................................ 3-8
Visual Inspection - External ............................................................. 3-8
Visual Inspection - Internal .............................................................. 3-9
Resistance Checks ........................................................................ 3-10

Powermax900 Troubleshooting Guide ............................................... 3-13

Voltage Checks .............................................................................. 3-18

Power Board ...................................................................................... 3-22
Control Board ..................................................................................... 3-24

Control Board LEDs ....................................................................... 3-24

PAC125T Torch Parts Removal and Replacement ............................ 3-26

Torch Main Body Removal and Replacement ............................... 3-26
Torch Switch Removal and Replacement ...................................... 3-27

PAC125M Torch Parts Removal and Replacement............................ 3-28

Removal ........................................................................................ 3-28
Replacement ................................................................................. 3-28

Quick Disconnect O-Ring Removal and Replacement ...................... 3-30