Check the rotation, Impeller-clearance check, Impeller axial clearances – Goulds Pumps XHD - IOM User Manual
Page 44: Check the rotation impeller-clearance check
Commissioning, Startup, Operation, and Shutdown
b) Lift upwards.
1. Coupling guard
2. Coupling
Check the rotation
WARNING:
• Operating the pump in reverse rotation can result in the contact of metal parts, heat generation, and
breach of containment.
• 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.
1. Lock out power to the driver.
2. Make sure that the coupling hubs or v-belt sheaves are fastened securely to the shafts.
3. Make sure that the coupling spacer is removed, if applicable.
The pump ships with the coupling spacer removed.
4. Unlock power to the driver.
5. Make sure that everyone is clear, and then jog the driver long enough to determine that the
direction of rotation corresponds to the arrow on the bearing housing or casing.
6. Lock out power to the driver.
Impeller-clearance check
The impeller-clearance check ensures the following:
• The pump turns freely.
• The pump operates at optimal efficiency for long equipment life and low energy
consumption.
Impeller axial clearances
Total axial adjustment
The total axial adjustment of the impeller between the suction seal ring and the stuffing box
cover should be as noted in the chart below.
42
XHD Installation, Operation, and Maintenance Manual