BA 9142 en 02/2015
6.
Fitting
Observe the instructions in section 3. "Safety instructions"!
6.1
General assembly information
When transporting the gear unit, observe the notes in section 4. "Transport and storage".
Assembly work on the mill must be performed with great care by authorised, trained and qualified
personnel. Siemens is not liable/does not extend a warranty for damages caused by incorrect
implementation.
Adequate lifting gear must be available before beginning the fitting work.
NOTICE
Property damage
Damage to the gear unit is possible.
For gear units, which are operated together with electrical machines that generate power or that are
supplied with power (e. g. motors, generators, etc.), it must be ensured that
no
current can flow through
the gear unit. The flow of current can lead to irreparable damages on rolling bearings and gear teeth.
Flow of current can arise, e. g. through short circuits, flash arcs, conductive dust layers, etc.
Suitable measures may be:
– Use of isolators
– Earth the gear unit professionally
NOTICE
Property damage
Because it must be prevented that the gear unit heats up during operation through external influences
such as direct sunlight or other sources of heat, suitable measures must be taken to avert such heating
up.
Suitable measures may be:
– an additional cooling unit
– a temperature monitoring device in the oil sump with a shut-off function.
A heat concentration must be avoided.
NOTICE
Property damage
Damage to the gear unit from dropping objects, heaping over, welding work or inadequate fastening.
The operator must ensure the following:
– The gear unit must be protected against dropping objects and heaping over.
– No welding work may be done at all on the drive.
– The gear unit must not be used as an earthing point for electrical welding work.
– All the fastening points provided by the design of the unit must be used.
– Screws which have been damaged during assembly or disassembly work must be replaced with
new screws of the same strength class and type.
Note
When fitting in the vertical mill, the mill manufacturer's special instructions must be observed.
Note
Every time the drive is set in motion and any operation of the oil-supply system (with connected gear
unit) represents a start-up.
