BA 5230 en 04/2011
7.2.6
Gear unit with backstop
Observe details at item 5.9, "Backstop"!
Before startup, check whether the backstop can be turned manually in the freewheeling direction without
exerting undue force. Observe the directionofrotation arrows on the housing.
To avoid damaging the backstop or the gear unit, the motor must not be run adversely
to the stop direction of the gear unit.
Observe the notice fixed to the gear unit.
If a backstop with release mechanism is used, the operating instructions for this
backstop must be followed.
Moreover, the dimension "x
min.
" must be checked; "x
min.
" must not be smaller than
that stated on the backstop rating plate.
Before connecting the motor, determine the direction of rotation of the threephase current supply using
a phasesequence indicator, and connect the motor in accordance with the predetermined direction of
rotation.
The unit can be started up once the amount of oil indicated on the notice has been
poured in through the oilfiller plug screw of the backstop. Always use oil of the same
type and viscosity as for the gear unit.
7.2.7
Temperature measurement
During the first startup and after maintenance work, the oilsump temperature must
be measured during correct use (maximum machine performance) after appropriate
running in.
The maximally permissible oilsump temperature is 90 °C (for mineral oil) or 100 °C
(for synthetic oil).
At higher temperatures the gear unit must be shut down immediately and Siemens
Customer Service should be consulted.
7.2.8
Bearing monitoring (vibration measurement)
If the necessary measures have been takenfor vibration measurement as bearing
monitoring (see item 5.13), vibration measurements must be taken in order to obtain
initial values and/or reference values for the diagnosis. These measurements must be
recorded and filed.
7.2.9
Heating
Never switch the heating on, unless complete immersion of the heating elements in the
oil bath is ensured. Fire hazard!
If heating elements are installed afterwards the maximum heating capacity
(see table 8 in item 5.10) on the outer surface of the heating element must not be
exceeded.
The correct setting of the switch points must be checked!
