Flowserve Mark 3 Sealed Metallic Durco - Manual (Page 21)

MARK 3 USER INSTRUCTIONS ENGLISH 71569102 01-13
Page 21 of 72 flowserve.com
j) Recompress the top spring to the compression
established in step g) and lock the nuts in place.
k) It should be noted that the connecting pipelines
must be individually supported, and that the
spring mounted baseplate is not intended to
support total static pipe loads.
Figure 4-4
Stilt/spring mounted baseplates - motor 4.4.1.3
alignment
The procedure for motor alignment on stilt or spring
mounted baseplates is similar to grouted baseplates.
The difference is primarily in the way the baseplate is
leveled.
a) Level the baseplate by using the stilt adjusters.
(Shims are not needed as with grouted
baseplates.)
b) After the base is level, it is locked in place by
locking the stilt adjusters.
c) Next the initial pump alignment must be checked.
The vertical height adjustment provided by the
stilts allows the possibility of 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.
4.4.2 Mounting Grouted Baseplates
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.
Mounting Instructions - All Grouted Bases 4.4.2.1
(Except T5000 Base)
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.