GE Industrial Solutions AF-600 FP High Power (460V_575V 150HP and above) - Manual (Page 115)

7. Remove twelve (T30) screws from the output (lower) side of the IGBT modules.
8. Remove the retaining nut (8 mm) from each intermediate IGBT output bus bar. Remove the intermediate IGBT bus bars.
9. Remove 4 nuts (10 mm), two on either side, connecting the rectifier DC bus bars to the main DC bus bars. These are located to either side of the SCR/
diode modules.
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Illustration 7.1: 42/44 SCR/Diode Module (2 of 4)
1 Retaining screws (Step 9) 7 IGBT output retaining screws (Step 7)
2 Retaining nut (Step 8) 8 Retaining screws (Step 9)
3 IGBT module 9 Intermediate IGBT output bus bar BB30 (Step 8)
4 Main DC bus bar BB25 (Step 9) 10 Bus bar BB31
5 Bus bar BB27 11 Bus bar BB30
6 Bus bar BB26
AF-650 GP and AF-600 FP High Power Service Manual
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