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LN-15
Section F-1 Section F-1
TABLE OF CONTENTS
- TROUBLESHOOTING & REPAIR SECTION -
Troubleshooting & Repair Section ........................................................................Section F
How to Use Troubleshooting Guide..............................................................................F-2
PC Board Troubleshooting Procedures and Replacement...........................................F-3
Troubleshooting Guide..................................................................................................F-4
Test Procedures
Boost Power Board Test .................... .................................................................F-11
Gas Solenoid Valve Test.......................................................................................F-15
Contactor Test ......................................................................................................F-17
Drive Motor Test ...................................................................................................F-19
Hall Effect Module Test.........................................................................................F-21
Replacement Procedures
Contactor Removal and Replacement .................................................................F-23
Feedhead Control Board Removal and Replacement .........................................F-27
Boost Power Supply Board Removal and Replacement .....................................F-31
Wire Drive Assembly Removal and Replacement................................................F-35
Cover & Spindle Mount Removal and Replacement............................................F-37
Roll Cage Removal and Replacement .................................................................F-41
Retest After Repair ...............................................................................................F-43