Chapter 6 - Exchange of Thyristors for Size A6
VI A 6 - 8 DCS 500 / DCS 600 Service Manual
Figure 6-8 DC-busbar plates and adjacent heat sinks
Note: The DC - busbar plates should line up with the adjacent heat
sinks.
8. Reconnect the DC-busbars.
9. Tighten the nuts of the mounting clamp by hand so that the
clamp is in parallel with the contact surface of the heat sinks.
Figure 6-9 Mounting clamp; loose condition
Note: The indicating spring is a very sensitive instrument and must
be handled with care.
10. Tighten each nut in turn, half a turn at a time with the help of a
ring spanner until the indicating spring clicks into position “cor-
rect torque”. Do not tighten the screws any further.
DC-busbar
plates and
heatsinks
Torque indcating
spring
loose condition
3ADW000093R0701_DCS500B/DCS600_Service manual_e_g
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