EMK
Operating and maintenance guidelines
7
Motive
In many cases, low-voltage motors are stored for lon-
ger periods of time before assembly and commissio-
ning, sometimes for several years.
In order to prevent premature damage, our customers
must be informed about this topic and, if necessary,
also about the following measures:
»
Storage
When storing the motors, the supplied operating inst-
ructions must always be followed:
»
Storage room
The motors must be stored in a dry, ventilated, dust-
free, and vibration-free room. Further, the storage
temperature should not be below -15°C (according to
EN60034-1) and the relative humidity should be below
60%.
If this is guaranteed, no special protective packaging
is required.
In all other cases, special packaging with plastic bags
and humidity indicators and a regular inspection will
be necessary.
»
Anti-rust
All exposed, outer components (e.g. shaft end, flanges,
feet) have a protective coating for 6 months storage
under dry conditions.
In order to secure a longer storage period, all accessib-
le bare parts must be provided with a long-term corro-
sion protection coating (e.g. Tectyl 506), provided this
has not already been applied by the factory.
Measures
»
For prolonged storage and before commissioning of low-voltage motors
EA regular inspection of the corrosion coating and, if
necessary, a renewal is necessary.
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Rotor holding device
The rotor holding device serves as a protection of the
bearings during transport and / or in the case of non-
vibration-free mounting (danger of brinelling). If a
rotor retaining device has been mounted on the drive
end of the shaft (DE shaft end) by the factory (e.g. for
designs with roller bearings), this must not be remo-
ved.
If the disassembly of the rotor retaining device is un-
avoidable (e.g. during inspections, tests, etc.), it must
be reattached before dispatch or during further sto-
rage. This also applies in particular to motors in which
a coupling half must be mounted on the DE shaft end.
The coupling half must be removed again after the ad-
justment, the rotor holding device must be reassem-
bled and the coupling half must be supplied or stored
separately.
»
Condensation water
If condensation drain holes are present on the motor,
any condensation water must be drained off by remo-
ving the plugs.
Commissioning
The operating instructions of the EMK motor as well
as the safety information „Warnings“ which are sup-
plied with each motor or can be downloaded from the
Internet must be observed entirely.
»
Bearings / Lubrication
The rolling bearings must be relubricated if the time
between delivery and commissioning is more than 2
years.
