Siemens H-compact PLUS, Operating Instructions Manual

Page: 38 / 83

Start-up
7.4 Lubrication of rolling contact bearings prior to commissioning
WOGeneric TEAAC / 2008
36
Siemens AG Operating Instructions 1.03 1RQ671...-Z
● If the second shaft end is not in use, its featherkey is secured to prevent it from being
thrown out, and cut back to roughly half its length if the rotor has balance type "H"
(standard type). The open shaft end is covered.
● For air cooling:
– All external fans fitted are ready for operation and have been connected so that they
rotate in the direction specified.
– The flow of cooling air is not impeded.
● For water cooling: the cooling water supply is ready for operation.
● All brakes are operating correctly.
● Appropriately configured control and speed monitoring functions ensure that the motor
cannot exceed the permissible speeds specified on the rating plate. See also the plant-
specific documentation.
● While being operated on the converter, the motor cannot exceed the specified upper
speed limit n
max
or undershoot the lower speed limit n
min
.
If the design of the motor requires that the converter is assigned in a particular way, the
rating plate or certificate will contain corresponding additional information.
● When the motor is switched on, the oil supply pump is running (if the motor has been
configured in this way).
● The rolling-contact bearings have been regreased as appropriate for the model. Rolling-
contact bearing machines which have been in storage for more than one year must be
regreased.
Note
This list does not claim to be exhaustive. It may be necessary to make additional checks
and tests in accordance with the situation specific to the particular place of installation.
[ID 1021.00]
7.4 Lubrication of rolling contact bearings prior to commissioning
● Before recommissioning, you must regrease the bearings if the machine stoppage has
lasted longer than a year. The shaft must rotate so that the new grease can be distributed
throughout the bearings.
● New grease must be used on the bearings before commissioning in the following
circumstances.
– When the machine has been in storage in favorable conditions, e.g. in dry rooms that
are free of dust and vibrations. This applies to the period between delivery and
commissioning, or longer periods of stoppage.
– If the machine has been in storage in unfavorable conditions for more than two
years. Pay attention to the instructions on the lubricant plate.