Tweco 400 MST Arc Master - Manual (Page 67)

400MST
9
ADVANCED TROUBLESHOOTING
9 – 30
5) Disconnect one connector and remove two screws, and then remove PCB13 (WK-5528).
2.4.11 PCB14 (WK-5594) 
1) Remove the side cover. [Reference page: 9-1]
2) Remove PCB17 (WK-5699). [Reference page: 9-33]
3) Remove the inductor (FCH1). [Reference page: 9-34]
4) Remove two screws from the front side and detach the bus bar.
5) Remove four screws and open the rear cabinet.
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