Goulds Pumps AF (Axial Flow) (42"/1200mm/54/60"/66") LM/LMR Bearings - IOM" - Manual (Page 16)

16 AF (42-66) IOM
Both designs permit movement for final bolt
adjustment. Anchor bolts should be located in the
concrete by a template dimensioned from the pump
installation drawing. The top of the sleeve-type bolt
should be temporarily sealed with waste material to
prevent concrete from entering during the concrete
pouring operation. Foundation bolts are located
according to the bolt hole dimensions shown on the
installation drawing. Bolt size is based on hole size,
they should be 1/8” to ¼” under the sub-base hole size.
For information on spring mounted sub-bases, see the
following section under spring mounted bases.
SUB-BASE LEVELING
GROUTED BASE
When the unit is received with the pump and driver
mounted to the sub-base, it should be placed on the
foundation and the coupling halves or V-belts
disconnected (Fig. 4). The coupling should not be
reconnected until all realignment operations have been
completed. A recommended coupling alignment
procedure is included in the following sections.
1. The sub-base should be supported on rectangular
metal blocks or on metal wedges having a slight
taper. There should be support blocks or wedges
on both sides of each foundation bolt. A gap of
about 3/4" to 1-1/2' should be allowed between the
sub-base and the foundation for grouting (Fig. 5).
2. Adjust the metal supports or wedges until the
shafts of the pump and driver and sub-base are
level. Check the coupling faces, as well as the
suction and discharge flanges of the pump, for
horizontal and vertical position by means of a level.
Check also for any internal rubbing in the pump.
Correct, if necessary, by adjusting the supports or
wedges under the sub-base as required. In most
cases, factory alignment will be regained by
shimming under the sub-base alone. Provisions
must be made to support the discharge piping
independently from the pump to prevent excessive
loads and maintain pump-driver alignment.
3. The sub-base should be level to within .125 in. (3
mm) over the length of the base and .0875 in. (1.5
mm) over the width of the base. Bases anchored
with conventional foundation bolts use shims on
both sides of the anchor bolts to level the base.
The bolts which secure the pump sub-base to the
foundation should be 1/8” – 1/4” less in diameter
than the holes in the sub-base (hole size is shown
on the certified installation drawing).
4. Clean outside areas of sub-base that will contact
grout. Do not use oil-based cleaners because
grout will not bond to it. Refer to grout
manufacturer's instructions.
5. Build a dam around foundation and thoroughly wet
the foundation (Fig. 6).
Fig. 4
SHIMS OR WEDGES
Fig. 5
SHIMS OR WEDGES