6EM Thru 18GM - 1100 Vertical Turbine Pumps 15
NOTE
Standard shaft and column lengths are
10 feet. Non-standard lengths of shafts
and column may be used to accomplish
the required overall pump length. Non-
standard shaft/column sections will
always be assembled at the top of the
pump, directly under the discharge head.
The shaft segment which protrudes
through the packing box will always have
a replaceable wear sleeve unless
otherwise specified and submitted.
Assembly procedure for underground
discharge (U.G.D.) units closely parallels
that of standard pumps with above ground
discharge heads. Always refer to the
Layne/Verti-Line submittal drawings and
setting plan to determine the proper location
of discharge elbow centerline.
If the packing box of the U.G.D. pump is
lubricated by the pumped media, it will be
necessary to provide an air release valve in
the top column. This will prevent air from
becoming trapped in the column above the
discharge elbow, therefore allowing the
media to lubricate the packing box bushing
and packing. If the pump's total dynamic
head is not sufficient to raise the media to
the altitude of the packing box, an alternate
method of lubrication must be provided (i.e.,
grease lubrication).
H. For ease of installation, remove the
packing box if shipped assembled to the
discharge head.
I. Install column flange gasket (when used)
and secure the discharge head to the
last column flange. When attaching the
column to the discharge head, make
sure the register fit is fully engaging the
head.
J. After attaching the column to the
discharge head remove the column
clamp, and lower the unit to the
foundation and tighten mounting bolts.
Check the shaft to see if it is centered in
the packing box opening in the head. If
the shaft is not centered, it could be an
indication of a bent shaft, column not
seated properly, or the unit is not
properly plumbed. Any or all of these
problems must be corrected before
proceeding with the installation of the
unit.
K Apply lubricant to the packing box
bushing and install the packing box on
the discharge head.
L. Install the packing and glands into the
packing box. Install gland bolts and
nuts. Allow the gland nuts remain loose.
Packing adjustment will be performed
later with the pump operating. If a
mechanical seal is employed, refer to the
Mechanical Seal section of this manual.
Threaded Column
1. Using an appropriate hoisting system, lift
the bowl assembly into position over the
well. Lower the bowl partially into the
well. Attach a pipe clamp (see Figure #1)
to the upper most bowl directly under the
bowl threads. Lower the assembly,
allowing it to be supported on the
foundation via the pipe clamp.
2. Lift the first section of pre-assembled
column & shaft into position over the
suspended bowl assembly (see Figure
#2). Care is to be taken not to damage
the threads on the pump shaft or line
shafts. Clean the threads and lubricate
with appropriate thread lubricant.
A line shaft coupling should already be in
place on the pump shaft. Thread the line
shaft into the coupling.
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