Xylem IMVIC R01 Model VIC Vertical Industrial Turbine Can Pumps - Manual (Page 12)

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4. Install two eyebolts diametrically opposite the upper
flange of the bottom column (644). Attach a sling to
the eyebolts and to the hoist hook. Lower column
section until the flange engages the flanged top bowl
register. Insert as many bolts through both flanges
as possible. Lift column assembly high enough to
allow rotation of the supports. Install and tighten
remaining capscrews gradually in diametrically
opposite pairs until all are uniformly tightened.
5. Lift the assembly and remove the elevator clamp or
supports and slowly lower the bowl and the column
assembly. Place supports on the base plate and
continue to lower the assembly until the column
elevator clamps or column flange comes to rest on
the supports.
NOTE: Normally, the bearing retainer will be integral
with column. The top flange of the column will
have male register and the bottom flange of the
column will have a female register. If you have
separate bearing retainers, there will be a female
register in the flange at both ends of the column.
Follow step 6 below.
6. Place the bearing retainer (652) with bearing (656)
over the shaft and fit the retainer in the female
register of the flange. Make sure the contact faces in
the flanges are clean. Use a file to remove nicks or
dings.
7. Install threaded coupling (649) on the protruding
end of the lineshaft (646), if required.
8. Assemble next column (642) section, or top column
(641) as required, and make sure bottom column
register (or bearing retainer (652)) engages the top
column register, and secure with capscrews (760B)
and hex nuts (735A) provided. Tighten capscrews
into hex nuts gradually and uniformly.
9. Repeat the preceding procedures until all column
sections required have been installed.
Do not drop any foreign object into the
column assembly. Such an object can
cause serious damage to the pump and any downstream
components. Any foreign object dropped into the column
assembly must be retrieved prior to continuing assembly.
INSTALLING THE DISCHARGE HEAD
VIC Pumps are provided with either “T” type or “L” type
head. Install the discharge head as follows:
1. If the stuffing box (See Fig. 6) is assembled to the
head, remove it and all the attached piping.
2. When a mechanical seal is provided it is shipped
separately.
3. Remove coupling guard if provided. Attach a sling
to the lifting lugs on the side of the discharge head
or through windows and hoist discharge head over
the protruding top shaft.
Eyebolts or sling should be rated to handle
in excess of the pump weight (see Outline
Drawing).
Do not bump or scrape the shaft protrud-
ing above the column. This could result in
bending or damaging the shaft.
4. Orient the discharge head in the required position
and lower the head. Centering the vertical hole with
the top shaft protruding above the column until the
discharge head engages the column flange. Install
capscrews and secure discharge head to the column
flange. Tighten capscrews gradually in diametrically
opposite pairs.
5. Lift the pump assembly high enough to allow rota-
tion of the supports. Realign and lower assembly.
Install and tighten remaining capscrews. Repeat
the rotating and the tightening procedure until all
capscrews are uniformly tight.
6. Hoist the discharge head by lifting lug and remove
the elevator clamp attached to column.
7. Remove the support timbers or I-beams and clean
the top of barrel flange. Orient the discharge head
in the required position.
NOTE: Sling should be rated to handle in excess of the
pump weight.
8. Lower bowl, column and head assembly, until
discharge head mounting flange engages with the
barrel flange. Secure discharge head to barrel.
Check the levelness of the discharge head in all
directions, utilizing a machinist level across the
driver’s mounting surface of the discharge head.
9. Check whether the top shaft (or stub shaft) is in
the center of the stuffing box bore. If not, the shaft
must be centered by shimming the head base and the
sub base (or the foundation).
10. Rotate the shaft approximately 90º. Check again
whether the shaft is at the center of the stuffing box
bore or not. If not, either the top shaft is bent or the
first shaft below it did not butt properly. Correction
must be made before the installation procedures can
proceed.
INSTALLING THE STUFFING BOX
Assemble stuffing box as shown in Figure 6.
1. Clean the surface of the discharge head where
the stuffing box will be mounted and remove any
nicks or burrs with a fine flat file. Position gasket
on surface. Slide stuffing box (616) down over
headshaft and into position on the gasket. Secure
stuffing box with capscrews.
2. Grease the packing ring (620) for easier installation.
3. Twist the packing ring sideways to get it around the
shaft easily. Start the first ring into the stuffing box.
When the entire ring is worked in using the fingers,
tamp it down using a split wood bushing (or equal)
and push the packing ring down firmly. It must seal
on the shaft and bore of the stuffing box. Install
three (3) rings in this manner. Stagger ring joints
90 degrees apart. The split gland may be used as a
tamper for the top ring.
4. Insert lantern ring (622) into stuffing box. Be sure
it is properly positioned so that it aligns with the
lubrication passage in the stuffing box.
5. Insert three (3) additional rings of packing. Stagger
ring joints 90º apart.
6. Install the split gland and screw nuts on the split
gland studs. Tighten nuts then relieve the nuts and
tighten finger tight.
CAUTION
WARNING
CAUTION