SMC Networks HRS012-A-10 Series Service Manual page 161

4.
Remove the impeller and spring. (Set screw ×2)
5.
Remove the mechanical seal, O-ring and cover all in one.
6.
Remove the deflector rubber.
HRS Series
[Tips]
There is a danger of parts popping out.If the impeller gets stuck and cannot
be removed, screw two screws of M6 x 50mm or larger into the two thread
holes of the impeller to pull out the impeller.
[Tips]
If the cover cannot be removed, insert the blade of the spanner/wrench
between the cover and motor and bring it up.
Fig. 4.5-10 Removal of mechanical seal set
HRX-MM-N007
Chapter 4 Service Procedure
4.5 Replacement Procedure
4-25