CIGWELD TRANSTIG 300 AC/DC, Service Manual, Page: 109 / 134

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MAINTENANCE
5 ) Remove two screws and remove the PCB22 unit.
6) Remove the six screws and 14 terminals. Remove the two screws and then detach the primary diode (D1).
Before installing a new diode, apply a uniform coat of silicone compound (Shinetsu Silicone G-747 or
equivalent) on the base.
14.
3.32 Secondary Diode (D2-D7)
V\
1 ) Remove the Side Panel. [Reference page : 11-1]
2 ) Remove the PCB16 (WK-5569). [Reference page : 12-16]
3 ) Remove the PCB15 (WK-5606). [Reference page : 12-15]
4 ) Remove the 30 screws and four terminals. Remove the bus bar.
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TRANSTIG 300 AC/DC SERVICE MANUAL
June 30, 2008 14-31