When assembling the CSU.
It is mandatory to observe the following steps:
The CSU needs to be closed and tightened in a nitrogen gas bath (N-bath)
(Consumable C2) to prevent humidity inside the CSU. Only under these
conditions, a dry CSU can be guaranteed.
After each disassembly of the CSU the sealing ring must be changed.
Working on the CSU should only be done under controlled ambient conditions.
CSU that were subject to high humidity inside, once disassembled, must be
thoroughly dried in a temperature chamber at 80°C for 4 hours before every
repair.
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