Goulds Pumps 3640 - IOM - Manual (Page 49)

Commissioning, Startup, Operation, and Shutdown
Group Nameplate radial bearing Temperature threshold for hot
doweling
S 6407 Not required
M 6309
L 6312 660°F (349°C)
XL1
XL2
6217 550°F (288°C)
XL3 6317 495°F (257°C)
XL4 6320 430°F (221°C)
XL5 6224 365°F (185°C)
XL6 6224 330°F (166°C)
When the driver is mounted at the factory, the pump is doweled for both cold and hot
applications; the driver is not doweled in order to allow for final field alignment. When the driver
is mounted in the field, the pump is not 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
Model 3640 Installation, Operation, and Maintenance Manual 47