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3
Motor
Manual
1 Notice
This manual must be followed to ensure proper and safe
installation, operation and maintenance of the motor . Prod-
ucts must be handled by qualified personnel, and health
and safety requirements and national legislation must be
observed . Ignoring these instructions will invalidate all ap-
plicable warranties of Hoyer Motors .
1 .1 General information
This manual concerns the following types of standard low
voltage induction motors from Hoyer Motors: HMA4, HMC4,
HMA3, HMC3, HMA2, HMC2, HMD, HMT, MS, Y2E1, Y2E2,
YDT . Explosion-proof low voltage motors are not covered by
this manual .
All motors are manufactured in accordance with IEC/
EN 60034-1 and IEC/EN 60072 unless otherwise specified .
Motors are rated as standard for the ambient temperature
range of -20°C to +40°C and site altitudes up to 1000 m above
sea level . Low voltage motors are components for installa-
tion in machinery . The motors are CE marked according to
the Low Voltage Directive 2014/35/EU .
Motors not fulfilling the IE3 efficiency level must, before the
1st of July 2021, be equipped with variable frequency drives
(VFD) when used in the EU . Information about the required
use of a VFD must be shown on the nameplate or an ad-
ditional label or plate, and in the technical documentation
of the motor .
1 .2 Safety instructions
Personnel who commission, transport, maintain or install
motors should have obtained qualified training and safety
knowledge . Safety equipment is necessary to prevent ac-
cidents . Local regulations and requirements must also be
observed . Failure in operation can cause injury to personnel
and damage to the motor .
The specified data and recommendations must be observed to
avoid hazardous situations and the risk of injury or damage .
Custom designs and other non-standard motors can vary in
technical details . If in doubt contact Hoyer Motors, stating
the type designation and serial number of the motor .
1.2.1 Operation
For safe operation it must be ensured that no external parts
interfere with the rotating shaft .
The shaft key must be securely fastened in the keyway be-
fore the motor is started . If the motor is run for no-load
testing, the key must be fixed in the keyway or removed .
The motor must be handled and operated properly to avoid
accidents during operation . If the motor is not running
properly, switch off the power supply . The power supply
must be switched off when troubleshooting .
Maintenance is required and must be done on a regular ba-
sis to prevent failures .
1.2.2 Lifting
For safety reasons all Hoyer motors with frame size 100 or
larger are equipped with eyebolts for lifting . Before lifting
the motor, ensure that the eyebolts are undamaged and
screwed tight . When lifting the motor, make sure that the
motor is not attached to any equipment or mounted by the
feet, shaft or flange . Only use the main eyebolts on the mo-
tor frame to lift the motor . Do not use damaged eyebolts .
If crane slings are used, prevent them from slipping and
maintain full control when lifting the motor .
1.2.3 Transport
The motor must be fixed on a pallet (by ropes, cables, bolts,
etc .) during transport . This means it must be secured so
it cannot move or be damaged during transport . Broken
equipment and unstable machines can cause serious inju-
ries .
Содержание HMA2
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