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Installation and operating instructions Wilo-Yonos GIGA-N
Maintenance/repair
9.2
9.1
10
Fig. 56: 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
7.1
7.1
Fig. 57: Fitting the slide-in unit
1.1
1.2
Fig. 58: 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, neck rings and other
parts.
5. Insert a new housing seal (1.2).
6. Carefully insert the slide-in unit into the spiral housing (1.1) and tighten with the
hexagon head screws (14).
15
7.2
2.2
2.1
3.2
en
7.2
14
61
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