Installation - Siemens 1LA8 Series Operating Instructions Manual

Covers or tarpaulins used to protect the equipment
against the weather must not make contact with the
surfaces of the equipment. Ensure adequate air
circulation by positioning wooden spacer blocks
between the equipment and such covers.
Storing indoors
The storage rooms must be dry, free from dust, frost
and vibrations and well ventilated. They must also
provide protection against extreme weather conditions.
The motors must be protected against shock and
humidity. The rotor-locking device should be installed
when the device is put into storage.
Notice
If a motor is not put into operation immediately, it
should be stored in a dry room free from dust, frost
and vibrations. Aggressive gases should not be present
in the ambient air.
Caution
If storage conditions are inappropriate there is a
risk of bearing seizure damage.
Preservation (mothballing)
If motors are to be put into storage for longer than 6
months, then they must be checked every 6 months to
ensure they are in good working order and any
necessary maintenance work must also be carried out.
Document all preservation measures taken, so that
they can be reversed before the motors are put back
into service. Slightly heat the windings of motors
constantly and ensure good air circulation.
Caution
If the motors were supplied with a shipping
brace, secure the rotor in accordance with the
instructions for the shipping brace in order to
prevent vibration damage to the bearings.
If the motors are equipped with condensation
drain holes, remove the screw plugs at regular
intervals, let the condensation water drain off
and refit the plugs.
Caution
(Environmental Protection)
Disposal of packing material: On unpacking the
motors, the packing material shall be disposed
as per the Local / Statutory requirements.
Special attention should be given to Polythene
bags, thermocole packing and nylon straps etc.,
which are not biodegradable.
8

3.2 Installation

Instructions relevant for safety
• After installation, screwed-in lifting eyebolt(s)
should either be removed or tightened down.
• Remove rotor locator (when provided) from shaft
extension. Check the free running of the rotor by
rotating the shaft by hand.
• The shaft extension of the motor is coated with an
anticorrosion agent. To remove this coating use
kerosene / thinner. Do not use sandpaper or scraper.
• Before mounting the motor, see that the motor feet
are properly cleaned.
• As a standard practice, the transmission elements
to be fitted to the motor should be dynamically
balanced. Please note that the rotors of the motors
are dynamically balanced with half key inserted in
the shaft extension of the motor.
• Transmission elements must be fitted and removed
only by means of suitable tool.
• Install the motor in such a manner that the cooling
air has free access and can escape unobstructed.
Discharged air or hot air from neighboring
equipment, must not be sucked in again. Clean the
entire path of air over the motor (between ribs and
air inlet in fan cowl) at regular intervals to remove
any foreign deposits, preferably by means of
compressed air.
• Motors are provided with plugged drain-holes,
located at lowermost point on both the end shields
for drainage of condensate water. Please ensure
that these holes are the lowest point of the motor.
If necessary rotate the end shield.
• For foot mounted motors to be fixed on the wall a
support should be provided for the mounting feet
from below.
• In the case of motors with shaft end facing
upwards or downwards, measures must be taken
(by the user) to ensure that no water or dust can
penetrate into the upper bearing.
• Initial lubrication of the bearings is carried out in
works. Bearings must be regreased when the motor
is running.
• If the belt drive is used, install the machine in such
a manner that it can be shifted on its base (e.g. on
slide rails) to obtain correct belt tension. Excessive
belt tension may result in damage to the bearing
and/or shaft. For permissible radial loads on shaft
extension and recommended pulley sizes refer the
Siemens catalog or contact local Siemens office.
Caution
Excessive belt tension may result in damage to
the shaft bearings; for permissible values, see
catalog or enquire.