Wilo Atmos GIGA-N Mode D'emploi page 72

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9.6.2 Assembling the slide-in unit
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Maintenance/repair
6. Fasten the pump support foot (8.1) with the hexagon head screw (8.2) and lock
washer (8.3).
Neck rings
The pump is optionally equipped with exchangeable neck rings. During operation, the
gap backlash increases due to wear. The period of use of the rings depends on the op-
erating conditions. If the volume flow decreases and the motor shows signs of in-
creased current consumption, this could be caused by an impermissibly high gap back-
lash. In this case, replace the neck rings.
Version with mechanical seal (optional: mechanical seal on the sleeve)
9.1 10
Fig. 27: Housing cover, mechanical seal
9.2 9.1 10
Fig. 28: Version with mechanical seal
1. Clean the stationary ring seat in the housing cover.
2. Insert the stationary part of the mechanical seal (9.1) carefully into the housing
cover (10).
3. Optional: Push the sleeve onto the shaft.
4. Screw the housing cover (10) onto the bearing bracket with the interior hexagonal
head screws (15).
5. Push the rotating part of the mechanical seal (9.1) onto the shaft (optional: sleeve).
6. Push the spacer (9.2) onto the shaft.
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WILO SE 2019-04