Bolt installation diagram
1
2
3
4
5
12–18 in.
8–12 in.
0.75–1.5 in.
1.
Baseplate
2.
Grout
3.
Alternate bolt and washer
4.
Concrete
5.
Bolt sleeve
Figure 10: Bolt installation
4.2 Set the baseplate
Pumps are checked at the factory for the ability to be aligned to the required tolerances. Due to the flexi-
bility of an ungrouted base and handling in shipment, do not assume that the unit is in alignment when it
is placed on the rough foundation. If these directions are followed, then the required alignment must be
readily achieved.
1.
Perform the initial or rough alignment.
Rough alignment is designated as 0.051 cm | 0.020 in. TIR for parallel alignment and 0.023 cm |
0.009 in. TIR per inch of radius for angular alignment. Use blocks at the anchor bolts and midway
between to position the bottom of the base at a finished height with the foundation bolts extending
through the holes in the baseplate. Instead of blocks and shims, you can also use metal wedges
with a small taper.
2.
If the unit has a non-flexible coupling, such as a Falk Gear coupling, then disconnect the coupling
halves.
This is usually not necessary on flexible-type couplings, such as Wood’s Sure-Flex coupling.
3.
Tighten all pump and motor bolts.
This ensures that bolts have not loosened or that a soft foot has not occurred due to base distortion
during shipment. A soft foot causes a change in the alignment when one bolt is loosened.
4.
If the driver is being installed in the field, then make sure it is centered in its bolt holes with shims
added to bring the driver into rough alignment with the pump.
Move the pump also, if necessary.
NOTICE:
Risk of improper alignment. Do not use more than six shims and use the thickest shims possi-
ble. Place thin shims in between thick shims.
5.
Level and plumb the pump shaft, coupling faces, and flanges by adding or removing shims between
the blocks and the bottom of the base.
6.
Hand-tighten the anchor bolt nuts. Then tighten the nuts with a wrench, taking care not to distort the
base.
4.2 Set the baseplate
Model 3410 Installation, Operation, and Maintenance Manual
27
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