GEA Ariete NS3015P, Instruction Manual

Page: 225 / 337

5
READ CAREFULLY THIS MANUAL
BEFORE INSTALLING THE MOTOR
RECEIVINGCHECK
Check if any damage has occured during
transportation.
9
Check nameplate data.
9
Remove shaft locking device (if any) before
operating the motor.
9
Turn the shaft with the hand to make sure it
is turning freely.
HANDLINGANDTRANSPORTATION
1 - General
MOTORS MUST NOT BE LIFTED BY
THE SHAFT, BUT BY THE EYEBOLTS
Lifting devices, when supplied, are
designed only to support the motor. If the motor
has two lifting devices then a double chain must
be used to lift it.
Lifting and lowering must be done gently
without any shocks, otherwise the bearings can
get damaged.
DURING TRANSPORTATION,
MOTORS FITTED WITH ROLLER OR
ANGULAR CONTACT BEARINGS
ARE PROTECTED AGAINST
BEARING DAMAGES WITH A
SHAFT LOCKING DEVICE.
THIS LOCKING DEVICE MUST BE
USED ON ANY FURTHER MOTOR
TRANSPORTATION, EVEN WHEN
THIS MEANS TO UNCOUPLE
THE MOTOR FROM THE DRIVEN
MACHINE.
STORAGE
If motors are not immediately installed,
they must be stored in dry places, free of
dust, vibrations, gases, corrosive smokes,
under constant temperature and in normal
position free from other objects.
Motor storage temperature must remain
between 5ºC to 60ºC, with relative humidity not
exceeding 50%.
In case the motors are stored for more than
two years, the bearings must be replaced or the
lubrication grease must be totally removed after
cleaning.
Single phase motors when kept in stock
for 2 years or more must have their capacitors
replaced (if any).
We recommend to turn the shaft (by hands)
at least once a month, and to measure the
insulation resistance before installing it, in cases
of motors stored for more than 6 months or when
subject to high humidity areas.
If motor is fitted with space heaters, these
should be switched on.
Insulation Resistance Check
Measure the insulation resistance before
operating the motor and/or when there is any
sign of humidity in the winding.
The resistance measured at 25ºC must be:
Ri
t
(20 x U) / (1000 + 2P) [M
:
]
(measured with a MEGGER at 500 V d.c.)
where U = voltage (V); P = power (kW).
If the insulation resistance is less than 2
megaohms, the winding must be dried
according to the following:
Warm it up inside an oven at a minimum
temperature of 80ºC increasing 5ºC every hour
until 105ºC, remaining under this temperature
for at least one hour.
Check if the stator insulation resistance
remains constant within the accepted values. If
not, stator must be reimpregnated.
INSTALLATION
1 - Safety
All personnel involved with electrical
installations, either handling, lifting, operation
or maintenance must be well informed and
updated concerning safety standards and
principles that govern the work and carefully
follow them.
We strongly recommend that these jobs
are carried out by qualified personnel.
ENGLISH
ENGLISH