Flowserve Guardian Sealless Metallic - Manual (Page 19)

GUARDIAN USER INSTRUCTIONS ENGLISH 71569212 08-11
Page 19 of 68 flowserve.com
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
baseplate and there has been no transit damage,
and also if the above steps where done properly,
the pump and driver should be within 0.38 mm
(0.015 in.) FIM (Full Indicator Movement) parallel,
and 0.0025 mm/mm (0.0025 in./in.) FIM angular.
If this is not the case, first check to see if the driver
mounting fasteners are centered in the driver feet
holes. If not, 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.
j) Grout the baseplate. A non-shrinking grout
should be used. Make sure that the grout fills the
area under the baseplate. After the grout has
cured, check for voids and repair them.
Jackscrews, shims and wedges should be
removed from under the baseplate at this time. If
they were to be left in place, they could rust,
swell, and cause distortion in the baseplate.
k) Run piping to the suction and discharge of the
pump. There should be no piping loads
transmitted to the pump after connection is made.
Recheck the alignment to verify that there are no
significant loads.
4.5 Initial alignment
4.5.1
Horizontal initial alignment procedure
The purpose of factory alignment is to ensure that the
user will have full utilization of the clearance in the
motor holes for final job-site alignment. To achieve
this, the factory alignment procedure specifies that
the pump be aligned in the horizontal plane to the
motor, with the motor foot bolts centered in the motor
holes. This procedure ensures that there is sufficient
clearance in the motor holes for the customer to field
align the motor to the pump, to zero tolerance. This
philosophy requires that the customer be able to
place the base in the same condition as the factory.
Thus the factory alignment will be done with the base
sitting in an unrestrained condition on a flat and level
surface. This standard also emphasizes the need to
ensure the shaft spacing is adequate to accept the
specified coupling spacer.
The factory alignment procedure is summarized below:
a) The baseplate is placed on a flat and level
workbench in a free and unstressed position.
b) The baseplate is leveled as necessary. Leveling
is accomplished by placing shims under the rails
of the base at the appropriate anchor bolt hole
locations. Levelness is checked in both the
longitudinal and lateral directions.
c) The motor and appropriate motor mounting
hardware is placed on the baseplate and the
motor is checked for any planar soft-foot
condition. If any is present it is eliminated by
shimming