Wilo NL-HE Series, Инструкция по установке и эксплуатации

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en Maintenance/repair
36 WILO USA 2021-01
15 10 9.1 9.2
Fig. 27: 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.
7.2 7.2 2.2 2.1 3.2 7.2 7.1 7.1
Fig. 28: Fitting the slide-in unit
1.1 1.2 14
Fig. 29: Inserting the slide-in unit
1. Mark positions of the parts that belong together with a coloured pen or scriber.
2. Mount the impeller disc, impeller (2.1) and key(s) (3.2) on the shaft and tighten with the
impeller nut (2.2).
3. Mount the protective grid (7.1) with interior hexagonal head screws (7.2).
4. Put the slide-in unit down at a safe workplace. To continue dismantling the slide-in
unit, fix it vertically in position with the drive shaft facing downward. The kit must be
removed vertically to avoid damage to the impellers and other parts.
5. Insert a new housing seal (1.2).