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3. TRANSPORTATION AND STORAGE
Danger! Do not walk under a suspended load!
The motors must be transported by means and in such a way which prevents possible damage, i.e.
they must be positioned exactly like they are situated in their basic and original transport packing. The
storage in dry indoor areas far away from possible corrosion hazards is recommended. In case of
longer storage time, it is necessary at least once a year to turn the rotor manually for one full circle. If
more than 1 years have passed from the delivery time during which the motor was not put into motion,
it is necessary to check before putting the motor into operation.
Motor storage handling must be performed in a regular way using the lifting rings on motors or the
pallet system. If eye bolts/attachment eyes are removed after installation, the tapped holes must be
blanked off permanently according to the Protection Standard.
4. SETTING INTO WORKING POSITION
Foot-mounted motors must be put on a hard ground adequately to their size and mounting requests
stated in IEC 60034-7 and fixed with screws. Flange-mounted motors are fixed directly with screws on
the counter flange of driven machine. Before setting the motor into working position the protective
cylindrical cover is to be removed from the shaft. For constructions with shaft end upwards the user
must prevent liquid entry from the shaft!
The key in the shaft end is secured by the shaft protective sleeve for transport and
storage only. Because of the danger that the key may be thrown aside, a start-up or
a trial run with the key protected by the shaft sleeve only is strictly forbidden.
The motors must be situated in such a way which assures the sufficient ventilation and heat transfer
area. Minimum distance in mm, from fan cover or from suction/exhaust jalousie openings, to an
obstacle must be at least equal to the rated motor frame size/shaft height figure.
The motors are intended for outdoor and indoor mounting for duty in ambient of moderate humidity,
low corrosive aggressiveness, temperature range from -20 to +40°C and up to 1000 m height above
the sea level. Series 7ATL 90-315 are designed for ambient temperature range from -40 / -50 to
+60°C In case of reduced cooling conditions at higher altitudes or higher environmental temperatures,
motor power should be changed according to the tables below:
Cooling air temperature °C
30 35
40
45
50
55
60
% rated power
100 100 100
96
91
86
80
Altitude above the sea level [m]
2000 3000 4000
% rated power at ambient temperature of 40°C
92 % 84% 78%
Rated power at ambient temp. in °C
32°C 24°C 16°C
Motors produced with protected windings for tropical working conditions bear the marking
”TROPICALIZED”.
Before every installation the motor must be checked for possible damages or possible irregular
mounting circumstances which can influence the proper operation. Transmission components (such
as couplings, pinions or belt pulleys) should be drawn onto the shaft by means of pull-on devices or
by heating-up the part to be drawn onto the shaft.
During assembly on transmission unit or driven machine, punching and applying of excessive force
must be avoided, especially in direction of motor drive axis because this can cause bearing damage
or permanent disturbance of safety gaps in motors protected with ”explosion-proof enclosure – d”. If
needed, the data on permitted radial and axial forces acting on motor DE and depending upon the
mounting arrangement can be requested from manufacturer. All fixing screws must be tightened with
adequate torque in order to assure smooth work of motor itself, without vibrations, deformations or
overstress. The screws must be secured from unfastening.If non-elastic couplings are used, the
proper coaxial alignment with DE shaft must be assured during assembly (acc. to the sketch) and at
belt transmissions the magnitude of belt tension force and it’s perpendicularity to the DE shaft must
be considered.
