Flowserve WUC Worthington - Manual (Page 39)

WUC USER INSTRUCTIONS ENGLISH - 07/14
Page 39 of 52
2) Uncouple the pump from the motor and remove
the motor after disconnecting it from the electrical
net.
3) Pull off the coupling hub from the pump shaft
[2110] and take out the key [6700.1].
4) Secure the mechanical seal by putting the tool into
the groove of the shaft sleeve. Loose the shrunk
ring, and disconnect the seal piping.
Drain the seal system, if
applicable.
5) Drain the oil from the bearing housing using the
plug [6569.1]. Loose the studs [6572.4] and pull
out the pump from it´s can.
6) Loose the socket head cap screw [6579.1] and
slip down the rotor by turning the shaft nut [2910]
and remove it.
If applicable pull off the fan [8161]
after loosing the grub screw [6814.3].
Use an anaerobic adhesive for securing the
socket set screw for reassembly.
If the pump is equipped with a rigid
spacer coupling open the socket head cap
screws [6579.3] move the coupling half [7200],
remove the intermediate coupling [7021],
coupling ring splits [7415], coupling half [7200]
and keys [6700.8].
7) Loose the studs [6572.1], take off the bearing
cover [3260.1] and remove key [6700.2].
Take care of the springs [4260 ].
Pull off the bearing housing [3200]. Loose the
studs [6572.2] and pull off the mechanical seal
cartridge.
To disassamble only the hydraulic
section start with point 11.
8) Open the hexagon head bolts [6577.4] and
disconnect the first column pipe from the
headstock [1141].
9) Pull out the complete bowl assembly together with
shafts and column pipes. Disconnect the first
column pipe.
10) Open the socket head cap screws [6579.2] and
slip upwards the shaft coupling [7020]. Remove
the coupling shell splits [7240]. Now the shafts are
uncoupled and you can proceed the same way
with the next column pipe until the bowl assembly
can be disconnected from the top or intermediate
shaft [2130.1 or 2120.1].
11) Open the tie bolt and hexagon nut [6571,
6581.10] and remove the suction casing [1130].
12) Remove the circlip [6544.2] and pull off the
impeller [2200.1].
If the pump is fitted with an inducer
[2215], it has to be pulled off instead of the
spacer sleeve.
13) Remove now the key [6700.3] and the next
retaining ring.
Take care of the O-ring [4610.5].
14) Pull off the pump bowl [1170.1], so you have
access to the next stage impeller.
15) Repeat step 12, 13 and 14 until you reach the
last stage.
16) Open the hexagon head bolts [6577.6], which
connects the column pipe with the pump bowl
[1170.2] and remove it.
Pump bowl [1170.1] can be splitted in the
stage casing [1160] and the diffuser [1410.1]. Refer
to sectional drawing.
6.7.4 Dismantling of 20, 45 & 80WUC-2L
1) Completely drain the pump by using the drain
connection. By pumping explosive or toxic media,
flush it with Nitrogen.
2) Uncouple the pump from the motor and remove
the motor after disconnecting it from the electrical
net.
3) Pull off the coupling hub from the pump shaft
[2110] and take out the key [6700.1].
4) Secure the mechanical seal by putting the tool into
the groove of the shaft sleeve. Loose the shrunk
ring, and disconnect the seal piping.
Drain the seal system, if
applicable.
5) Drain the oil from the bearing housing using the
plug [6569.1]. Loose the studs [6572.4] and pull
out the pump from it´s can.
6) Loose the socket head cap screw [6579.1] and
slip down the rotor by turning the shaft nut [2910]
and remove it.
If applicable pull off the fan [8161]
after loosing the grub screw [6814.3].
Use an anaerobic adhesive for securing the
socket set screw for reassembly.
If the pump is equipped with a rigid
spacer coupling open the socket head cap
screws [6579.3] move the coupling half [7200],
remove the intermediate coupling [7021],
coupling ring splits [7415], coupling half [7200]
and keys [6700.8].
7) Loose the studs [6572.1], take off the bearing
cover [3260.1] and remove the key [6700.2].
Take care of the springs [4260 ].