ABB DCT880 - Busbar Removal and Thyristor Check (T5); Loosen bottom screws for busbar removal (T5); Remove screws for U2, V2, W2 busbars (T5)

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13. To remove the U1, V1, W1 and U1, V2,
W2 busbars loosen the 4 screws at the
bottom plate.
14. Remove the screws holding the U2, V2
and W2 busbars.
Exchange thyristors size T5
3ADW000449R0101 DCT880 Service Manual e a