Siemens 1MB115 Installation And Maintenance Manual page 72

Bare metal surfaces
For transport, the bare surfaces (shaft ends, flange surfaces, centering edges)
should be coated with an anti-corrosion agent which will last for a limited
amount of time (<6 months). Apply suitable anti-corrosion measures for
longer storage times.
The materials used are specially designed for the temperature range
required by the customer. The relevant temperature limits are specified on
the rating plate.
!
Risk of explosion due to damaged sealing materials
Storing the machine at temperatures that do not fall within the specified
limits can damage the material of the seals and cause them to fail. As a
result, a potentially explosive gaseous atmosphere can enter the machine
and be ignited during commissioning. Explosions can occur. This can result
in death, serious injury or material damage.
• Do not store the machine in conditions that lie outside the specified
Storage temperature
Permissible temperature range: -20 ºC to +50 ºC
Maximum permissible air humidity: 60%
For machines that have a special design regarding the ambient
temperature in the operating state or the installation altitude, other
conditions could apply regarding the storage temperature. In this case,
refer to the machine rating plate for data on the ambient temperature and
installation altitude.
Storage time
Turn the shaft once every year to avoid bearing brinelling. Prolonged
storage periods reduce the useful life of the bearing grease (aging).
Open bearings
• For open bearings, e.g. 1Z, check the status of the grease when stored
for longer than 12 months.
• Replace the grease if it is identified that the grease has lost its lubricating
properties or is polluted. The consistency of the grease will change if
condensation is allowed to enter.
Closed bearings
• For closed bearings, replace the DE and NDE bearings after a storage
time of 48 months.
72
WARNING
temperature limits.