2. Depending on the pump/motor size, unscrew the bolts that fix the support foot
and/or motor foot to the foundation.
3. Remove the complete pump set from the piping.
7.4.4 Dismantling the pump
7.4.4.1 Sizes 10/1 - 10/3, 20/1 - 20/3, 30/1 - 30/3
The dismantling procedure is the same for all sizes. It only differs in the number of
stages to be dismantled.
1. Undo and remove cap nuts (38) incl. washers (37).
2. Remove suction cover (7) (vertically installed pumps: foot with suction cover (7))
and undo and remove grub screws (36).
3. Remove O-ring (16) and joint ring (30) (suction cover).
4. Undo and remove impeller nut (14).
5. Pull first impeller (5) off shaft (50).
6. Remove first stage casing (3).
7. Remove O-ring (16) and joint ring (30) (first stage casing).
8. Repeat the above steps until all stages have been dismantled.
9. Remove keys (24) from shaft (50).
10. Pull primary ring of mechanical seal (13) off shaft (50).
11. Undo bolts (40), remove washers (42) and separate motor (55) from flange (49).
12. Undo screws (39), separate pump casing (1) from flange (49) and remove joint
ring (31).
13. Remove mating ring of mechanical seal (13) from pump casing (1).
14. Dismantle the motor feet, if necessary:
Undo nuts (53) and bolts (52) and remove feet (51).
7.4.4.2 Sizes 05/1 - 05/8
The dismantling procedure is the same for all sizes. It only differs in the number of
stages to be dismantled.
1. Undo and remove cap nuts (38) incl. washers (37).
2. Remove suction cover (7) (vertically installed pumps: foot with suction cover (7))
and undo and remove grub screws (36).
3. Remove O-ring (16) and joint ring (30) (suction cover).
4. Undo and remove impeller nut (14).
5. Pull first impeller (5) off shaft (50).
6. Remove first stage casing (3).
7. Remove O-ring (16) and joint ring (30) (first stage casing).
8. Repeat the above steps until all stages have been dismantled.
9. Remove keys (24+28) from shaft (50).
10. Pull primary ring of mechanical seal (13) off shaft (50).
11. Remove motor shroud, if fitted; to do so, undo screws (45) and remove motor
shroud (44).
12. Undo bolts (40), remove washers (42) and separate motor (55) from pump casing
(1).
13. Remove mating ring of mechanical seal (13) from pump casing (1).
7 Servicing/Maintenance
Vitastage
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