Rockwell Automation 1329R Std. Industrial AC Induction Motors - Manual (Page 7)

Standard Industrial AC Induction Motors 7
Lifting Means
In the case of assemblies on a common base, any lifting means
provided on the motor or generator should not be used to lift the
assembly and base. The assembly should be lifted by a sling around
the base or by other lifting means provided on the base. In all cases,
care should be taken to assure lifting in the direction intended in the
design of the lifting means. Precautions should be taken to prevent
hazardous overloads due to deceleration, acceleration or shock forces.
Mounting
Mount the motor on a foundation sufficiently rigid to prevent
excessive vibration. Roller bearing and ball-bearing motors may be
mounted with the shaft at any angle. Roller bearing motors are not
suitable for coupled duty applications. After carefully aligning the
motor with the driven unit, bolt securely in place.
When motors, which are normally mounted with the shaft in a
horizontal position, are mounted vertically, it may be necessary to
provide additional guards to prevent foreign objects from falling into
the motor openings and striking rotating parts. Such guards may be
obtained at the time of purchase or from a local service repair center.
Explosion proof motors are shipped from the factory with the conduit
box mounted. If the conduit box is removed or rotated, a minimum of
five (5) full threads of engagement on the motor pipe nipple must be
maintained for explosion proof integrity of the conduit box.
Some motors have standardized frames containing 6 or 8 mounting
holes. 6 hole frames are not suitable for field reversal of mounting
from F-1 to F-2, etc.
Figure 1 indicates the proper mounting holes to
use.
!
ATTENTION: When lifting means are provided for
handling the motor, it should not be used to lift the motor
plus additional equipment such as gears, pumps,
compressors or other driven equipment. Failure to observe
this precaution could result in bodily injury.