SPP id: Version 14 > / 140901 / Replaces 140530 / en /
N32198
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Series
2.15
INSTRUCTIONS
September 2014
Page
ISO
G
COPYRIGHT © SULZER PUMPS FINLAND OY
ORIGINAL INSTRUCTION
USER'S MANUAL – AHLSTAR
Corrective maintenance
6
Remove the rotating part on the atmospheric side of the mechanical seal (433.21) from the shaft by opening
the hexagonal retainer screws.
7
Unscrew the hexagonal screws (901.33) of the adapter and draw the adapter out by using the same screws
as extractors.
Mechanical seal, standard integrated double (type MS21, pump type EPP)
1
Loosen the hexagon head screws (901.21) and remove the guards (683.21 and 683.22).
2
Unscrew the hexagon head screws (901.21).
3
By using the said screws as extractors, draw the case cover (161.21) out of the adapter (344.31). In heavier
casing covers, there is a threaded hole (size M8) for lifting the cover by using an eye screw. The
components of the mechanical seal (433.21) come off the shaft.
4
Unscrew the nuts (920.21) of the case cover (161.21).
5
The mechanical seal can now be removed from the case cover (161.21) and dismantled according to the
seal manufacturer's instructions.
6
Remove the rotating part on the atmospheric side of the mechanical seal (433.21) from the shaft by opening
the hexagonal retainer screws.
7
Unscrew the hexagon head screws (901.33) of the adapter and draw the adapter out by using the same
screws as extractors.
Mechanical seal, cartridge single on the shaft without shaft sleeve (types MS31, MS32 and
MS35)
1
Loosen the hexagon head screws (901.21) and remove the guards (683.21 and 683.22).
2
Unscrew the hexagon head screws (901.21).
3
Unscrew the nuts (920.21).
4
By using the said screws as extractors, draw the case cover (161.21) out of the adapter (344.31). In heavier
casing covers, there is a threaded hole (size M8) for lifting the cover by using an eye screw. All parts
belonging to the mechanical seal (433.21) will remain on the shaft.
5
The mechanical seal can now be removed from the shaft and from the casing cover and dismantled
according to the seal manufacturer's instructions.
6
Unscrew the hexagon head screws (901.33) of the adapter and draw the adapter out by using the same
screws as extractors.
Mechanical seal, cartridge single on the shaft sleeve (types MS33 and MS34)
1
Loosen the hexagon head screws (901.21) and remove the guards (683.21 and 683.22).
2
Unscrew the hexagon head screws (901.21).
3
Unscrew the nuts (920.21).
4
By using the said screws as extractors, draw the case cover (161.21) out of the adapter (344.31). In heavier
case covers, there is a threaded hole (size M8) for lifting the cover by using an eye screw. All parts
belonging to the mechanical seal (433.21) will remain on the shaft.
5
The mechanical seal can now be removed from the shaft and from the casing cover and dismantled
according to the seal manufacturer's instructions.
6
Remove the shaft wearing sleeve (524.21) from the shaft with an extractor.
7
Unscrew the hexagon head screws (901.33) of the adapter and draw the adapter out by using the same
screws as extractors.