Flowserve TB-MAG INNOMAG - Manual (Page 18)

INNOMAG® TB- MAG™ ASME and ISO SEALLESS ENGLISH 26999988 06-14
Page 18 of 44
Figure 4-4
4.3.3.3 Stilt/spring mounted baseplates -
motor alignment (Long-Couple pumps only)
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 levelled.
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 Grouting
Where applicable, grout in the foundation bolts.
Foundation bolts should only be fully tightened
when the grout has cured.
After adding pipework connections and rechecking
the coupling alignment, the baseplate should then be
grouted in accordance with good engineering
practice. Fabricated steel, folded steel and cast iron
baseplates can be filled with grout. Polycrete
baseplates cannot be grouted in the same way, see
their User Instructions 71569284 (E) for installation
and use. If in any doubt, please contact your nearest
service center for advice.
Grouting provides solid contact between the pump
unit and foundation and prevents lateral movement of
vibrating equipment and dampens resonant
vibrations.
4.4.1 Baseplate Inspection
a) Completely clean the underside of baseplate.
b) Inspect for any damage that would impede proper
installation or future use of the baseplate.
c) Confirm baseplate hole pattern for proper
mounting bolt installation.
d) Lower the baseplate carefully onto mounting
bolts. Caution: Must adhere to proper transport
and lifting procedures.
e) Level the baseplate using shims and/or wedges.
Use machinist’s levels to maintain a flat and level
surface.
f) Max difference across length 3.2 mm (0.125 in.)
g) Max difference across width 1.5 mm (0.059 in.)
h) Secure baseplate using mounting bolts to prevent
unwanted movement during operation. Torque
bolts to appropriate company standards and
practices.
i) Perform final inspection to verify that baseplate is
securely mounted, level, and ready to be used.