b) Attach a sling to the swivel hoist rings and to the hoist hook.
c)
Hoist the column section over the bowl assembly.
d) Lower the column over the lineshaft until the column flange engages the discharge-bowl flange
register.
e) Insert as many capscrews through both flanges as possible and gradually tighten them in dia-
metrically-opposite pairs.
5.
Lift the bowl and column assembly high enough to allow for the removal of the I-beam supports.
6.
Install and tighten the remaining capscrews.
7.
Place the bowl and column assembly on the I-beams across sub base surface:
a) Lift the entire assembly by the column pipe swivel hoist rings and remove the I-beam supports.
b) Slowly lower the bowl and column assembly.
c)
Place the supports on the barrel flange and continue to lower the assembly until the upper col-
umn flange comes to rest on the supports.
8.
If required, install the coupling and lineshaft to the protruding end of the lineshaft.
9.
Assemble the next column section, or top column:
a) Make sure that the bottom-column register engages the top-column register.
b) Secure the columns with capscrews and hex nuts until all column and lineshaft sections re-
quired for the proper pump setting are assembled.
c)
Tighten the capscrews into the hex nuts gradually and uniformly.
4.5.2 Install the threaded coupling
If you have a keyed coupling, see the Install the column section of this manual.
CAUTION:
Use Molykote Dow-Corning anti-galling compound or an equivalent for all galling material such
as 316 stainless steel.
Shaft threads are left hand.
1.
Coat the threads with a light coat of oil for a non-galling material, or Molykote for galling material.
2.
Install the threaded coupling onto the pump shaft by threading it on for one-half of its length.
You can insert a fine wire in the drill hole at the center of the coupling that serves as a gauge in
order to determine when the coupling is correctly positioned on the pump shaft.
3.
Remove the wire.
4.5.3 Installing the column - enclosed lineshaft
Pump lineshafts are connected with keyed couplings. This section describes both procedures.
See the Certified Pump Outline Drawing for the number of column and shaft sections required.
1.
Before starting the shafts installation, check the headshaft and lineshaft for straightness.
The average TIR should be less than 0.013 mm | 0.0005 in. per 0.305 m | foot and not exceed
0.127 mm | 0.005 in. for every 3 m | 10 ft.
2.
4.5.1 Install the open lineshaft on page 24
3.
If the enclosing tube is threaded, attach the threaded lifting device to a section of enclosing tube. If
the enclosing tube is threaded, attached eyebolts to two holes in the flange.
4.
Raise up and then lower the enclosing tube over the first length of shaft attached to the bowl.
5.
Apply an anti-sieze compound to the matching threads of the pump-top screw bearing and securely
tighten.
6.
Install the first length of column pipe over the tube:
4.5 Column installation
Model VCW Installation, Operation, and Maintenance
25
Summary of Contents for Goulds Pumps VCW
Page 1: ...Installation Operation and Maintenance Model VCW ...
Page 2: ......
