Goulds Pumps AF (Axial Flow) (6"-36) MXR Bearings" - Manual (Page 33)

AF (6-36) IOM 31
OPERATION
PREPARATION FOR OPERATION .............................................................. 31
STARTING THE PUMP ................................................................................. 33
OPERATION ................................................................................................. 34
SHUTDOWN .................................................................................................. 36
FINAL ALIGNMENT ...................................................................................... 36
PREPARATION FOR OPERATION
CHECKING ROTATION
When installing in a potentially explosive
environment, ensure that the motor is
properly certified.
Damage occurs from:
1. Increased vibration levels-affects bearings,
stuffing box or seal chamber and mechanical
seal
2. Increased radial loads Stresses on shaft and
bearings
3. Heat build up-Vaporization causing rotating
parts to score or seize
4. Cavitation-damage to internal surfaces of
pump
CAUTION
Serious damage may result if pump is run in the
wrong direction.
WARNING
Lock out power to prevent accidental start-up and
physical injury.
Serious damage may result if the pump is
run in the wrong direction.
A check must be made to be sure motor rotation
coincides with the pump rotation direction. Depending
on your pump arrangement (V-belt or gear-drive) use
one of the following methods to check motor rotation.
Direct Connect
1. Lock out power to the driver.
2. Remove the pump coupling guard.
3. Make sure the coupling halves are securely
fastened to shafts.
4. Unlock driver power.
5. Make sure everyone is clear. Jog the driver just
long enough to determine direction of rotation of
the output shaft of the gearbox. Rotation must
correspond to an arrow on bearing housing.
6. Lock out power to driver.
7. Replace the pump coupling guard.
The coupling guard used in an ATEX
classified environment must be constructed
from a non-sparking material.
V-BELT
1. Lock out power to the driver.
2. Remove the V-belt guard.
3. Make sure the sheaves are securely fastened to
shafts.
4. Unlock driver power.
5. Make sure everyone is clear. Jog the driver just
long enough to determine direction of rotation.
Rotation must correspond to an arrow on bearing
housing.
6. Lock out power to driver.
7. Replace the V-belt guard.
CHECK IMPELLER CLEARANCE
Check impeller clearance before installing the pump.
The impeller must not rub when the shaft is turned by
hand, therefore it is recommended that the Impeller
Alignment Worksheet (shown on pg. 28) is filled out
4
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