WEGeuro - Indústria Eléctrica, S.A. Português - English
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9. ASSEMBLING AND DISASSEMBLING
9.1 This type of motors requires a special care. Particularly when assembling and
disassembling parts are carried out, the condition of the joints should be checked. The
dimensions of the joints, i.e. length and clearance, have been 100% controlled during
production of the motors. The joints must not be changed and you need to:
Ensure that the joints are not damaged and do not have cuts or dents.
If this happens the parts should be replaced.
All the screws should be well tightened. A screw which is not tight enough
changes the resistance of the enclosure. In case of replacement of a screw, it is
imperative to keep its length and quality of material.
Do not change interchangeable parts during maintenance.
9.2 The yield stress of the fastener elements of motor and terminal boxes enclosures
must be at least equal to:
Class 12.9 for steel screws.
Class A2-70 or A4-80 for stainless steel screws on all motors and terminal
boxes for temperatures up to -55ºC with exception of the motors frame sizes
500 and 560 which can only be used up to -40ºC.
10. MARKING
10.1 All motors have two marking plates:
Nameplate
This nameplate contains information in compliance with the IEC 60034-1, as well as
other useful technical information.
Note – The two first digits of the serial number indicate the manufacturing year of
the motor.
Certification plate
The certification plate must be in accordance with the explosive atmosphere where
the equipment will be used or in accordance with the certification type, ATEX or
IECEx and it may contain the following information:
10.1.1 For explosive atmospheres with gas:
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