Goulds Pumps API 3171 - IOM - Manual (Page 24)

Motor installation and coupling alignment
WARNING:
• Follow shaft alignment procedures in order to prevent catastrophic failure of drive components or
unintended contact of rotating parts. Follow the coupling installation and operation procedures from
the coupling manufacturer.
• Always disconnect and lock out power to the driver before you perform any installation or
maintenance tasks. Failure to disconnect and lock out driver power will result in serious physical
injury.
NOTICE: Proper alignment is the responsibility of the installer and the user of the unit. Check the
alignment of frame-mounted units before you operate the unit. Failure to do so can result in equipment
damage or decreased performance.
Install the motor
Use NEMA Vertical C-face motors with this pump. P-base motor adapters and IEC motor adapters are
available as options.
1. Install both coupling halves before you mount the motor.
Refer to the instructions from the coupling manufacturer.
2. Use the lifting lugs on the motor in order to carefully lower the motor onto the pump.
Make sure to align the bolt holes.
3. Before you connect the coupling, wire the motor and check the direction of rotation.
The rotation arrow is on the motor support. The correct rotation is clockwise as you look down from
the drive at the impeller.
Alignment checks
When to perform alignment checks
You must perform alignment checks under these circumstances:
• The process temperature changes.
• The piping changes.
• The pump has been serviced.
Types of alignment checks
Type of check When it is used
Initial alignment (cold alignment)
check
Prior to operation when the pump and the driver are at ambient
temperature.
Final alignment (hot alignment)
check
After operation when the pump and the driver are at operating
temperature.
Initial alignment (cold alignment) checks
When Why
Before you grout the baseplate This ensures that alignment can be accomplished.
After you grout the baseplate This ensures that no changes have occurred during the grouting
process.
After you connect the piping This ensures that pipe strains have not altered the alignment.
Installation
22 Model API 3171 Installation, Operation, and Maintenance Manual