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7.4.2 Spare parts
Spare parts are available from your supplier or the
manufacturer.
Th e following data are required for spare part orders.
•
Number of the aggregate (→ Nameplate, page 9)
•
Type of aggregate (→ Nameplate, page 9)
•
Item number of spare part (✓ Cross-sectional drawings,
page 33 et seq.)
•
Designation of spare part (✓ Cross-sectional drawings,
page 33 et seq.)
•
Number of spare parts
7.4.3 Aggregate repairs
1. Th e following must be observed during assembly:
− Worn parts must be replaced by original spare parts.
− Replace seals.
− Th e required tightening torques must be observed
(→ Tightening torques, page 30).
2. Clean all parts.
3. Install the aggregate into the system (→ Set-up and
connection, page 14).
7.4.5 Disassembly of SM30B
Cross-sectional drawing (→ page 33)
✓ Th e aggregate has been removed from the system and is
positioned in a clean and level assembly area.
1. Disassembly of pump casing (101) and inter casing
(137)
− Position the aggregate on the fan hood.
− Loosen the hexagon head screws (901).
− Take off the pump casing (101).
− Remove the inter casing (137).
2. Disassembly of impeller (230)
− Block the impeller (230) in the shaft sealing casing
(441).
− Loosen the hexagon nut (920) on the impeller screw
(906) and remove it.
− Pull the impeller (230) off the motor shaft .
− Remove the impeller screw (906) with the disc spring
stack (950).
3. Disassembly of shaft sealing casing (441)
− Loosen the hexagon nuts (920.1) on the fl ange of the
shaft sealing casing (441).
− Pull the shaft sealing casing (441) off the motor
fl ange (800).
4. Disassembly of mechanical seal (047)
− Pull the rotating unit of the mechanical seal (047) off
the impeller hub (230).
− Push the stationary unit of the mechanical seal (047)
out of the shaft sealing casing (441).
5. Disassembly of valve fl ap (746)
− Loosen the hexagon head screw (901.1) on the inter
casing (137).
− Remove the valve fl ap (746) and the steel sheet (598).
7.4.6 Disassembly of SM55B - SM250B
Cross-sectional drawing SM55B - SM75B (→ page 35)
Cross-sectional drawing SM100B (→ page 36)
Cross-sectional drawing SM200/250B (→ page 38)
✓ Th e aggregate has been removed from the system and is
positioned in a clean and level assembly area.
1. Disassembly of pump casing (101) and inter casing
(137)
− Position the aggregate on the fan hood.
− Loosen the hexagon head screws (901).
− Take off the pump casing (101).
− Loosen the hexagon socket countersunk head screw
(900) on the inter casing (137).
− Loosen the screw plug (903) on the pump casing
(101) (only SM100B).
− Loosen the hexagon socket head screw (914) (only
SM100B).
− Remove the inter casing (137) and the O-ring (412).
2. Disassembly of impeller (230)
− Block the impeller (230) in the shaft sealing casing
(441).
− Loosen the hexagon nut (920/920.1) on the impeller
screw (906) and remove it.
− Pull the impeller (230) off the motor shaft .
− Remove the impeller screw (906) and the disc spring
stack (950).
3. Disassembly of shaft sealing casing (441)
− Loosen the hexagon head screws (901.1) on the
motor fl ange (only SM55B/SM75B/SM100B).
− Loosen the hexagon nuts (920) on the motor fl ange
(only SM200B/250B).
− Pull the shaft sealing casing (441) off the motor
fl ange (800).
4. Disassembly of mechanical seal (047)
− Pull the rotating unit of the mechanical seal (047) off
the impeller hub (230).
− Push the stationary unit of the mechanical seal (047)
out of the shaft sealing casing (441).
5. Disassembly of valve fl ap (746)
− Loosen the hexagon head screw (901.2) on the inter
casing (137).
22
255548 Rev.1
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