8 Servicing/Maintenance
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Hya-Rain/Hya-Rain N
8.4.3 Removing the mechanical seal
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The pump set has been properly removed from the system.
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1. Place the pump set with the motor below in a clean assembly area.
2. Undo the hexagon socket head cap screws at the motor. Remove the suction
casing.
Fig. 31:
Removing the suction casing from the motor
3. Undo the impeller nut.
Fig. 32:
Undoing the impeller nut
4. Remove the impeller.
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The mechanical seal is freely accessible.
Fig. 33:
Removing the impeller
5. Remove the circlip with a suitable tool.