Goulds Pumps 3610 - IOM - Manual (Page 52)

Commissioning, Startup, Operation, and Shutdown
doweled. Therefore, these doweling procedures, typically done at the factory, must be done in
the field.
NOTICE:
You should dowel only after completing the final alignment.
Dowel for motor installation
1. Center the pump on its pedestal so that the hold-down bolts are centered in the tapped
holes of the pump pedestal.
2. Place the motor on the baseplate with the proper shaft separation (DBSE = distance
between shaft ends).
3. Tighten the pump hold-down bolts.
4. After you have determined the correct motor location on the motor pedestals, mark the
location of the motor on the pedestals with a hole punch through the hold-down bolt holes
in the motor feet.
5. Remove the motor, then drill and tap the punched holes on the motor pedestal.
NOTICE:
Scribe the motor shims in order to return them to the correct location on the motor pedestal.
6. Set the motor back onto the baseplate with the shims in the correct location. Tighten the
hold-down bolts.
7. Loosen the pump and motor hold-down bolts. Confirm that the pump and motor are not
bolt-bound in order to make sure that the final drilled holes will be correctly located.
NOTICE:
Do not dowel the pump prior to this procedure because you will not be able to move the
pump on its pedestals.
Dowel for cold service
Required tools:
• Two number 7 taper pins
• One number 7 taper pin reamer
• 21/64 in. or "Q" size drill
• Hardwood block or soft-faced hammer
NOTICE:
• This procedure must be done only after the pump is properly aligned with the driver on the
baseplate.
• If water-cooled pedestals have been provided, then do not drill through the baseplate
pedestal. Doing so can result in leakage of cooling water.
1. Drill two holes through the pump foot and pump pedestal. Position each hole between the
hold-down bolt and the end of the pump foot at the coupling end on both sides.
2. Ream the holes with a number 7 taper pin reamer to the proper fit with the taper dowel pins.
Insert the pins deep enough so that only the threaded portions are exposed when the pins
are fully seated.
3. Seat the taper pins firmly in the holes with a hardwood block or soft-faced hammer.
If you should ever need to remove the dowel pins, tighten the hex nuts provided on the pins. If
the pins are not seated deeply enough, put a spacer under the hex nuts in order to lift the pins
free when the hex nuts are tightened.
50 Installation, Operation, and Maintenance Manual