Hypertherm powermax1650 - Page 28

powermax1650 Service Manual
3-1
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Section 3
MAINTENANCE
In this section:
Controls and Indicators.............................................................................................................................................3-2
Theory of Operation..................................................................................................................................................3-3
General ............................................................................................................................................................3-3
Functional Description......................................................................................................................................3-3
Sequence of Operation.............................................................................................................................................3-4
Troubleshooting ........................................................................................................................................................3-5
Test Equipment ................................................................................................................................................3-5
Troubleshooting Procedures and Sequence ....................................................................................................3-5
Visual Inspection – External.............................................................................................................................3-5
Visual Inspection – Internal ..............................................................................................................................3-6
Resistance Checks ...................................................................................................................................................3-7
Troubleshooting Guide..............................................................................................................................................3-9
Voltage Checks.......................................................................................................................................................3-14
Component Replacement .......................................................................................................................................3-20
Power Cord Replacement ..............................................................................................................................3-20
Torch Installataion ..........................................................................................................................................3-21
Filter Element Replacement...........................................................................................................................3-23
Work Cable Replacement ..............................................................................................................................3-24
Capacitor Replacement..................................................................................................................................3-25
Heat Sink Component Replacement..............................................................................................................3-26