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Operating
Instructions
18
1096.0833 | CY, CSY, LNY, LSY, NPY, PY, Y, YS Series
05/2011
7.2.8
Disassembly of PY-2071
Cross-sectional drawing PY-2071 (
The pump aggregate has been removed from the system
and is positioned in a clean and level assembly area.
1.
Disassembly of suction casing
−
Position the aggregate vertically on the fan hood.
−
Loosen the hexagon head screws (901) on the suction
casing (106). Remove the suction casing and the
screws.
−
Remove the O-ring (412).
2.
Disassembly of impeller
−
Loosen the threaded pin (904) on the impeller (230).
−
Pull the impeller (230) off the motor shaft (the impeller
is provided with a thread for the puller).
−
Remove the fitting key (940) from the motor shaft.
3.
Disassembly of the mechanical seal and the discharge
casing
−
Remove the locking ring (932).
−
Pull the discharge casing (107) and the rotating unit of
the mechanical seal (047) off the motor shaft.
−
Push the stationary unit of the mechanical seal from
the rear out of the discharge casing.
7.2.9
Disassembly of Y-4081/CY-4081/
CSY-4081
Cross-sectional drawing Y-4081/CY-4081/CSY-4081
(
page 44 et seq.)
The pump aggregate has been removed from the system
and is positioned in a clean and level assembly area.
1.
Disassembly of casing respectively casing cover
−
Position the aggregate vertically on the fan hood.
−
Loosen the hexagon head screws (901) on the casing
(Y: 101) respectively on the casing cover
(CY-/CSY: 161), remove the screws and the cas-
ing/casing.
−
Remove the O-ring (412).
2.
Disassembly of impeller
−
Pull the impeller (230) off the motor shaft (the impeller
is provided with a thread for the puller).
−
Remove the fitting key (940) from the motor shaft.
3.
Disassembly of mechanical seal and shaft sealing casing
−
Remove the locking ring (932).
−
Pull the shaft sealing casing (441) and the rotating unit
of the mechanical seal (047) off the motor shaft.
−
Push the stationary unit of the mechanical seal from
the rear out of the shaft sealing casing.
7.2.10 Disassembly of Y-5081/CY-5091
Cross-sectional drawing Y-5081/CY-5091
(
page 50 et seq.)
The pump aggregate has been removed from the system
and is positioned in a clean and level assembly area.
1.
Disassembly of casing respectively casing cover
−
Position the aggregate vertically on the fan hood.
−
Loosen the hexagon head screws (901) on the casing
(Y: 101) or on the casing cover (CY: 161), remove the
screws and the casing/casing cover.
−
Remove the O-ring (412).
2.
Disassembly of impeller
−
Pull the impeller (230) off the motor shaft (the impeller
is provided with a thread for the puller).
−
Remove the fitting key (940) from the motor shaft.
3.
Disassembly of mechanical seal and shaft sealing casing
respectively casing
−
Pull the locking ring (932) and the conical sleeve (504)
off the motor shaft.
−
Pull the rotating unit of the mechanical seal (047) off
the motor shaft.
−
Remove the shaft sealing casing (Y: 441). or casing
(CY:101)
−
Push the stationary unit of the mechanical seal from
the rear out of the shaft sealing casing/casing.
7.2.11 Disassembly of Y-6091
Cross-sectional drawing Y-6091 (
The pump aggregate has been removed from the system
and is positioned in a clean and level assembly area.
1.
Disassembly of casing
−
Position the aggregate vertically on the fan hood.
−
Loosen the hexagon head screws (901) on the casing
(101), remove the screws and the casing.
−
Remove the O-ring (412).
2.
Disassembly of impeller
−
Loosen the threaded pin (904) on the impeller (230).
−
Pull the impeller (230) off the motor shaft (the impeller
is provided with a thread for the puller).
−
Remove the fitting key (940) from the motor shaft.
3.
Disassembly of mechanical seal and shaft sealing casing
brass version
−
Pull the locking ring (932) and the washer (550.1) off
the motor shaft.
−
Pull the rotating unit of the mechanical seal (047) off
the motor shaft.
−
Remove the shaft sealing casing.
−
Push the stationary unit of the mechanical seal from
the rear out of the shaft sealing casing.
stainless steel version
−
Loosen the threaded pins (904) on the conical sleeve
(504).
−
Pull the conical sleeve and the rotating unit of the me-
chanical seal (047) off the motor shaft.
−
Loosen the hexagon head screws (901.2) on the shaft
sealing casing (441).
−
Remove the shaft sealing casing.
−
Push the stationary unit of the mechanical seal from
the rear out of the shaft sealing casing.