Figure 5:
5.
By adjustment of wedges, bring the bedplate to an approximate level and provide the proper dis-
tance above the foundation for grouting ( ¾" to 1½"). Level or plumb the suction and discharge
flanges. Bring pump and motor shafts into reasonable alignment making absolutely certain that
motor shaft is not above pump shaft or if it is, that there is a sufficient thickness of shims under
the motor feet to allow for adjustment during alignment
6.
Tighten foundation bolts, but only finger tight. Maintain the level of the bedplate.
NOTICE:
Final tightening is done after pump is grouted and grout has set at least 48 hours.
7.
Build wood dam around foundation as shown in Fig, 3, and thoroughly wet top surface of founda-
tion. Pour grout in hole provided in top of bedplate. Use of non-shrink grout is recommended.
Grout should be thin enough to flow out under the bedplate but not so wet that sand and cement
will separate. Grout should be puddled continuously as it is poured to expel the air and complete-
ly fill the space under the bedplate to the level of the grout hole. Strike along top of dam with
trowel to give a neat finished appearance. Allow grout to harden at least 48 hours.
8.
Tighten foundation bolts.
9.
Tighten pump hold-down bolts.
2.6 Alignment procedures
General
Alignment of the pump and driver is of extreme importance for trouble-free mechanical operation. The
following are suggested steps to establish the initial alignment of the unit.
NOTICE:
This is an initial alignment. The final alignment is done after the unit has been run under actual
operating conditions. The final alignment procedure is outlined in
and must be followed. Make sure motor starting switch is locked out to prevent accidental
rotation.
Any coupling manufacturer's instruction sheets, sent with the pump, should be studied and used when
installing, aligning, or servicing coupling. Note that coupling hubs are not necessarily mounted flush with
the shaft ends.
If instructions are not available, the following procedure may be used. The procedure is given for two ba-
sic coupling types:
1.
Flexible Coupling - Normally furnished on all units except back pull-out. Normally not assembled
(except spider-insert type which are pre-assembled).
2.
Flexible Spacer Coupling - Furnished as standard on all back pull-out units. Contains a remova-
ble spacer piece located between coupling hubs.
2.6 Alignment procedures
3107 Installation, Operation and Maintenance Instructions
13
