Changing the roller bearings of the unwinding mechanism
The roller bearings push against the winding mandrels with the O-rings and decelerate the unwinding
process. This generates the necessary filter fleece tension.
First replace the O-rings when the deceleration effect decreases and the filter fleece begins to
sag. (→ Changing the O-rings of the unwinding mechanism)
Replace the roller bearings if no sufficient deceleration effect is achieved despite installing new O-
rings.
Storage/winter protection
Decommissioning depends on whether or not the unit is protected against freezing.
The unit is protected from frost (e.g. stored in a garage or other enclosure)
The unit can be operated as long as the water temperature does not go below +4 °C.
The unit is not protected from frost (e.g. outdoor installation)
Shut down the unit at water temperatures below +8 °C or at the latest when freezing temperatures
are expected.
Drain the water remaining in the unit, in the hoses, pipes and connections as much as possible.
Open all slide valves to prevent water from pooling.
Cover the container to prevent rain water from entering.
Protect any lines and slide valves from which you cannot drain the water against freezing.
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