Goulds Pumps JC - IOM - Manual (Page 17)

When the grout has hardened and the anchor bolts are
permanently secured, recheck level.
NOTE: On large subbases/floorplates, shimming is
recommended to be at 24" spacing.
PUMP-DRIVER ALIGNMENT
!
Alignment procedures must be followed to prevent
unintended contact of rotating parts. Follow
coupling manufacturer’s installation and operation
procedures.
SHAFT ALIGNMENT OF
HORIZONTAL PUMP AND DRIVER
Pumps and drivers that are received from the factory with
both machines mounted on a common subbase were
accurately aligned before shipment. Because all subbases
are, to some extent, flexible, factory alignment may be
altered during shipment and handling. After the subbase
has been leveled, grouted, and secured, check the
alignment. Alignment should be rechecked after the pump
is fully installed and before startup. Refer to the Alignment
Procedure.
Disconnect coupling halves before proceeding with
alignment. Check for angular and parallel alignment in the
Alignment Procedure. The faces and outside diameters of
the coupling halves must be square and concentric with the
bores. If this condition does not exist, the Alternate Method
of Alignment is recommended.
Subbase mounted horizontal pumps may be shipped with or
without drivers and gears. Be sure pump and drivers are
uncoupled before installation. Level by shimming beside
each anchor bolt and grout as described in Installing Pump
on Foundation.
ALIGNMENT PROCEDURE
A check for angular alignment is made by inserting the taper
gauge or feelers at four points between the coupling faces
and comparing the distance between the faces at four points
spaced around the coupling. The unit will be in angular
alignment when the measurements show that the coupling
faces are the same distance apart at all points (Fig. W7).
A check for parallel alignment is made by placing a straight
edge across both coupling rims at the top, bottom, and at
both sides. The unit will be in parallel alignment when the
straight edge rests evenly on the coupling rim at all
positions. Allowance may be necessary for temperature
changes and for coupling halves that are not of the same
outside diameter.
NOTE: Care must be taken to have the straight edge
parallel to the axis of the shafts (Fig. W8).
JC IOM 5/08
15
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