INSTRUCTIONS AND MAINTENANCE MANUAL
MAC R MOTORS
PAGE:
36
CODE: CTT12 EDITION: 01 DATE: MAY 2013
Subject to technical changes without prior notice
5.1.2
Mounting
Correct mounting is essential to guarantee a long service life for the motor. The following are essential issues that
need to be taken into account when anchoring the motor correctly:
IM B3 Foot-mounting:
a)
Ensure that the support base is correctly levelled: the motors must be mounted on a solid, flat base that
is perfectly level. If the base is not made up of one single compact surface, the motor feet support
services must be on the same level. To level the machine correctly, the feet may have to be gauged
using steel plates to avoid the appearance of mechanical tension.
PRECAUTION
Damages caused to the motor by the incorrect levelling of the support base
The incorrect levelling of the motor reduces the service life of the bearings and other parts of the transmission.
b)
Use an appropriate base for the assembly work: Make sure that the base on which the motor is to be
located meets the following specifications:
-
The dimensions of the base correspond to those of the motor feet. Make sure that the entire area of
the motor feet rests perfectly on a solid base.
-
Make sure that the base is capable of supporting the weight of the motor without problem. If the
base were to go out of shape over time, the motor may not be level, which would reduce the service
life of the motor substantially, especially the bearings.
-
Make sure that the base is sufficiently heavy-duty to counter the torque provided by the motor
without noticeable deformation.
-
Make sure that the base is sufficiently rigid for there to be no resonances in the motor operation
speed range.
c)
Make sure that there are no additional loads on the motor: Consideration must be given to the weight of
the couplings and pulleys and the resulting axial and radial loads to ensure that the motor bearings are
dimensioned correctly (the maximum admissible radial loads for each motor are specified in the Table
17).
d)
Fastening the feet: When the motor has been installed on a base that meets all the aforementioned, the
motor must be firmly fastened in position using the 4 holes machined on the feet (for said purpose) and
bolts of the appropriate size for said holes. The diameter of the holes machined on the motor feet
comply with the motor shaft height according to the EN 60072 standard. The leg bolts must be selected
according to the loads applied to the motor and in compliance with the ISO 898-1 standard, which
defines the mechanical properties of the bolts according to their quality.
