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General instructions
Maintenance
pfu basic range: Prefabricated concrete
enclosure, ground-level walk-in type
9.
Maintenance
The pfu does not require speci c maintenance. It may
occasionally require lubricating the locks and checking the
ventilation grilles. There must not be any obstacles in the
grilles.
30
IG-032-EN version 05; 18/06/2019
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