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6.4.3.2 Replace Filter
It is absolutely necessary to protect the filter material against atmospheric humidity. The material must therefore
not be directly exposed to the open air for a longer period than 1 hour. It is supplied in closed tins.
Check the closed tins for damage. Filter material from leaky tins must not be used.
The filter material is accommodated in the filter cowl (see 3.4 Interrupter Unit). Remove cover 15.16.11 with O-
seal ring (Fig. 61) (4xM10 screws). Remove the old filter bags from the filter cowls. Lay the new filter bags in the
filter cowls. Grease cover 15.16.11 (Fig. 62) with seal ring at the sealing surfaces and reinstall (4xM10 screws).
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