Preservation - Siemens 1PH728 Operating Instructions Manual

● Protect the machine from shocks and humidity.
[ID 1079.01xx]
3.1.3

Preservation

Preservation
If you are storing a machine for more than six months, you must check its condition every six
months.
● Check the machine for damage.
● Carry out any necessary maintenance work.
● Document all preservation measures taken so that they can be reversed before the
● Provide a constant source of low heat to the machine windings, along with forced air
Condensation water
Condensation water can collect in the machine as a result of sharp fluctuations in ambient
temperature, exposure to direct sunlight, high levels of humidity in the storage location or
intermittent operation/variations in load during operation.
CAUTION
Damage caused by condensation water
If the stator winding gets damp, its insulation resistance decreases. This results in voltage
flashovers, which can destroy the winding. Condensation can also cause rusting inside the
machine.
Ensure that condensation water is drained off.
In the end shields at the drive end and non-drive end, water drain holes are situated in the
foot area and opposite the regreasing devices. They are sealed with small plastic plugs or
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Siemens AG Operating Instructions 2.02 1PH728
Siemens Hardware
– Well ventilated
– Offers protection against extreme weather conditions
– The air in the room must not contain any harmful gases.
machines are put back into service.
ventilation.
CAUTION
Bearing damage caused by vibrations
If storage conditions are inappropriate there is a risk of bearing seizure damage. This
can result in material damage, such as damage to bearings due to vibration.
On machines that have been supplied with a rotor locking device, secure the rotor as
per the notes on transportation. Protect the machine against strong radial vibrations,
since the rotor locking device might not absorb these completely.
Transport, assembly, and connection
3.1 Transport, storage, and maintenance
25