Rockwell Automation 1329L AC Induction Motors User Manual - Manual (Page 21)

AC Induction Motors 21
Screw-in Stub Shaft
1. Turn off and lockout power to the motor.
2. Remove in-line blower motor and cover assembly by removing
the hex head cap screws on cover (if enclosure is TEAO-Blower
cooled).
3. After removal of blower assembly, motor shaft will need to be
locked from turning. The use of a spanner wrench on motor drive
shaft or alternate means can be used. Place an open-end wrench
on stub shaft flats and turn counter clockwise (right-hand
threads).
4. Replace blower motor and cover assembly (if TEAO - blower
cooled) with the correct extended blower cover, using the hex
head cap screws previously removed.
Replacement Bearings/Spare
Parts Your maintenance program will not be complete without including
spare bearings. It must be remembered that the bearing is a wearable
component and therefore must eventually be replaced. To ensure that
you are able to maintain original operation, we recommend the
purchase of spare parts directly from Rockwell Automation.
All bearings are subject to exact specifications and tests necessary to
satisfy performance requirements. In this manner, it is possible to
duplicate your present bearing. Markings on the bearing do not
indicate complete specifications.
A detailed parts list, which gives Allen-Bradley recommendations for
spare parts that should be stocked for your equipment, can be ordered
from your Allen-Bradley Sales Office. Be sure to include complete
nameplate data - serial number, model number, rating, etc. - for your
equipment when ordering the spare parts list.