There are two methods for doweling the pump casing, depending on whether the pump is operated in an
application with a low or high temperature differential between the ambient temperature during setup and
the temperature of the pumped fluid.
If the temperature differential is low the pump foot on the drive end of the pump will require taper pins
installed to secure the pump to the pedestal.
If the temperature differential is high the baseplate is supplied with provision to accommodate differential
temperature doweling. This design ensures the alignment between the pump and driver is maintained
while allowing the case to thermally move.
When the driver is mounted at the factory, the driver is not doweled in order to allow for final field align-
ment.
NOTICE:
You should dowel the driver only after completing the final hot alignment.
5.16.1 Installing the driver
1.
Confirm the pump is centered on its pedestal so that the hold-down studs are centered in the pump
foot clearance holes with the pump dowel pins installed.
2.
Place the driver on the baseplate with proper shaft separation (DBSE = distance between shaft
ends).
3.
Tighten the pump hold-down bolts as described in the applicable pump doweling sections below.
4.
If the driver was installed at the factory and the driver hold-down bolt holes have already been dril-
led and tapped in the baseplate pedestal, proceed to step 9.
5.
After you have determined the correct driver location on the driver pedestal, mark the location of the
driver on the pedestal with a hole punch through the hold-down bolt holes in the driver feet.
6.
Remove the driver, then drill and tap the punched holes on the driver pedestal.
NOTICE:
Scribe the driver shims in order to return them to the correct location on the driver pedestal.
7.
Set the driver back onto the baseplate with the shims in the correct location.
8.
Confirm the driver is not bolt-bound.
9.
Tighten the driver hold-down bolts and confirm alignment.
10. Run the unit under actual operating conditions for enough time to bring the pump, driver, and asso-
ciated system to operating temperature.
11. Shut down the pump and the driver.
WARNING:
Failure to disconnect and lock out driver power may result in serious physical injury or death.
Always disconnect and lock out power to the driver before performing any installation or main-
tenance tasks.
•
Electrical connections must be made by certified electricians in compliance with all in-
ternational, national, state, and local rules.
•
Refer to driver/coupling/gear manufacturer's installation and operation manuals (IOM)
for specific instructions and recommendations.
12. Remove the coupling guard.
Refer to
5.2 Remove the coupling guard on page 38
.
13. Check and confirm the alignment while the unit is still hot.
14. Dowel the driver feet. See the driver IOM for details.
5.16 Doweling the pump casing
60
3640 i-FRAME API Type BB2 2-Stage / ISO 13709 2nd Ed. API 11th Ed. Installation, Operation, and Maintenance Man-
ual
Содержание Goulds Pumps i-FRAME 3640
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