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Tweco 400 MST Arc Master User Manual

Page 72

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400MST

9

ADVANCED TROUBLESHOOTING

9 – 35

4) Remove one screw, one terminal and one nut.

5) Remove four screws and remove the inductor (FCH1).

2.4.17 Thermistor (TH1)

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1) Remove the side cover. [Reference page: 9-1]
2) Cut off one snap band and disconnect one connector. Remove one screw and remove the thermistor (TH1).

When replacing the thermistor with a new one, apply an oil compound (SHINETSU SILICONE G-747
or equivalent) evenly to the base.

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CN8

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