CIGWELD TRANSTIG 300 AC/DC, Service Manual, Page: 103 / 134

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MAINTENANCE
14.
3.24 Secondary Thermistor (TH2)
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1 ) Remove the Side Panel. [Reference page : 11-1]
2 ) Remove the PCB16 (WK-5569). [Reference page : 12-16]
3 ) Cut the three snap bands and disconnect the one connector. Remove the one screw and secondary
thermister (TH2).
Before installing a new therminstor, apply a uniform coat of silicone compound (Shinetsu Silicone G-
747 or equivalent) on the base.
14.
3.25 Cooling Fan (FAN1)
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1 ) Remove the Side Panel. [Reference page : 11-1]
2 ) Remove the gas tube and two terminals. Remove the four screws and open the rear cabinet.
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TRANSTIG 300 AC/DC SERVICE MANUAL
June 30, 2008 14-25