After Sales Support; Spare Parts; Dismantling, Re-Assembly And Rewinding; Bearings - ABB M2A Manual De Instalación E Usuario

7. After Sales support

7.1 Spare parts

Spare parts must be original parts or approved by ABB
unless otherwise stated.
Requirements in standard IEC 60079-19 must be fol-
lowed.
When ordering spare parts, the motor serial number, full
type designation and product code, as stated on the
rating plate, must be specified.
7.2 Dismantling, re-assembly
and rewinding
Follow the instructions given in standard IEC 60079-19
regarding dismantling, re-assembly and rewinding. Any
operation must be undertaken by the manufacturer, i.e.
ABB, or by an ABB authorized repair partner.
No manufacturing alterations are permitted on the parts
that make up the explosion-proof enclosure and the parts
that ensure dust-tight protection. Also ensure that the
ventilation is never obstructed.
Rewinding must always be carried out by an ABB author-
ized repair partner.
When re-assembling the end shield or terminal box to the
frame of flameproof motors, check that the spigots are
free of paint and dirt with only a thin layer of special
non-hardening grease. In the case of DIP/Ex tD motors,
when re-assembling the end shields on the frame special
sealing grease or sealing compound must be reapplied to
the spigots. This should be the same type as originally
applied to the motor for this kind of protection.

7.3 Bearings

Special care should be taken with the bearings.
These must be removed using pullers and fitted by heating
or using special tools for the purpose.
Bearing replacement is described in detail in a separate
instruction leaflet available from the ABB Sales Office.
Special recommendations apply when changing the
bearings of DIP/Ex tD-motors (as the seals should be
changed at the same time).
Any directions placed on the motor, such as labels, must
be followed. The bearing types indicated on the rating
plate must not be changed.
NOTE!
Any repair by the end user, unless expressly approved
by the manufacturer, releases the manufacturer from his
responsibility to conformity.
18 – EN ABB Motors and Generators | Low voltage Ex motor manual 01-2007
8. Environmental
requirements

8.1 Noise levels

Most of ABB's motors have a sound pressure level not
exceeding 82 dB(A) (± 3 dB) at 50 Hz.
Values for specific machines can be found in the relevant
product catalogs. At 60 Hz sinusoidal supply the values
are approximately 4 dB(A) higher compared to 50 Hz
values in the product catalogs.
For sound pressure levels at frequency converter supply,
please contact ABB.