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
Mechanical seal, cartridge double on the shaft without shaft sleeve (type MS41)
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
Unscrew the hexagonal screws (901.33) of the adapter and draw the adapter out by using the same screws
as extractors.
Mechanical seal, cartridge double on the shaft sleeve (type MS42)
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
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.
Mechanical seal, element single (types MS51 and MS52)
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
Unscrew the hexagon head screws (901.33) of the adapter and draw the adapter out by using the same
screws as extractors.
Mechanical seal, element double (type MS61)
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).