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Preventive Maintenance
3ADW000488R0101 DCS880 Service manual e a
− Make sure all supply voltages are switched off, most important the supply for the power part
(armature), for the drive electronics (SDCS-POW-H01), for the converter fan and for other auxiliaries!
− Open the cabinet’s and module’s door; if needed secure them.
− Pull the torque indication spring a little bit out:
− Release the torque indication spring. It has to snap back into position “correct torque”:
− If the torque indicating spring does not snap back into position “correct torque” the stack has to be
retorqued otherwise everything is fine.
− 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 “correct torque”. Do not tighten the screws any further.
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