Flowserve M-series PolyChem - Manual (Page 17)

USER INSTRUCTIONS PolyChem M-SERIES ENGLISH 71569218 07-11
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Page 17 of 60
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slightly twisting the baseplate. If there has been
no transit damage or twisting of the baseplate
during stilt height adjustment, the pump and
driver should be within 0.38 mm (0.015 in.)
parallel, and 0.0025 mm/mm (0.0025 in./in.)
angular alignment. If this is not the case, check
to see if the driver mounting fasteners are
centered in the driver feet holes.
d) If the fasteners are not centered there was likely
shipping damage. Re-center the fasteners and
perform a preliminary alignment to the above
tolerances by shimming under the motor for
vertical alignment, and by moving the pump for
horizontal alignment.
e) If the fasteners are centered, then the baseplate
may be twisted. Slightly adjust (one turn of the
adjusting nut) the stilts at the driver end of the
baseplate and check for alignment to the above
tolerances. Repeat as necessary while
maintaining a level condition as measured from
the pump discharge flange.
f) Lock the stilt adjusters.
The remaining steps are as listed for new grouted
baseplates.
4.4 Grouting
a)
The pump foundation should be located as close
to the source of the fluid to be pumped as
practical.
b) There should be adequate space for workers to
install, operate, and maintain the pump. The
foundation should be sufficient to absorb any
vibration and should provide a rigid support for
the pump and motor.
c) Recommended mass of a concrete foundation
should be three times that of the pump, motor
and base. Refer to Figure 4-5.
Foundation bolts are imbedded in the
concrete inside a sleeve to allow some movement of
the bolt.
Figure 4-5
d) Level the pump baseplate assembly. If the
baseplate has machined coplanar mounting
surfaces, these machined surfaces are to be
referenced when leveling the baseplate. This
may require that the pump and motor be
removed from the baseplate in order to
reference the machined faces. If the baseplate
is without machined coplanar mounting surfaces,
the pump and motor are to be left on the
baseplate. The proper surfaces to reference
when leveling the pump baseplate assembly are
the pump suction and discharge flanges. DO
NOT stress the baseplate.
e) Do not bolt the suction or discharge flanges of
the pump to the piping until the baseplate
foundation is completely installed. If equipped,
use leveling jackscrews to level the baseplate. If
jackscrews are not provided, shims and wedges
should be used. (See Figure 4-5.) Check for
levelness in both the longitudinal and lateral
directions. Shims should be placed at all base
anchor bolt locations, and in the middle edge of
the base if the base is more than 1.5 m (5 ft.)
long. Do not rely on the bottom of the baseplate
to be flat. Standard baseplate bottoms are not
machined, and it is not likely that the field
mounting surface is flat.
f) After leveling the baseplate, tighten the anchor
bolts. If shims were used, make sure that the
baseplate was shimmed near each anchor bolt
before tightening. Failure to do this may result in
a twist of the baseplate, which could make it
impossible to obtain final alignment.
g) Check the level of the baseplate to make sure
that tightening the anchor bolts did not disturb
the level of the baseplate. If the anchor bolts did
change the level, adjust the jackscrews or shims
as needed to level the baseplate.
h) Continue adjusting the jackscrews or shims and
tightening the anchor bolts until the baseplate is
level.
i) Check initial alignment. If the pump and motor
were removed from the baseplate proceed with
step j) first, then the pump and motor should be
reinstalled onto the baseplate using Flowserve’s
factory preliminary alignment procedure as
described in section 4.5, and then continue with
the following. As described above, pumps are
given a preliminary alignment at the factory. This
preliminary alignment is done in a way that
ensures that, if the installer duplicates the factory
conditions, there will be sufficient clearance
between the motor hold down bolts and motor foot
holes to move the motor into final alignment. If the
pump and motor were properly reinstalled to the
baseplate or if they were not removed from the