BA 5200 EN 08/2010
7.2.4
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 oil filler plug screw of the backstop. Always use oil of the same
type and viscosity as for the gear unit.
7.2.5
Gear unit with temperature measurement
During first startup and after maintenance work, the oil sump temperature must be
measured during correct use (maximum machine performance) after appropriate
running in.
The difference in temperature from the maximum ambient temperature of + 40 °C must
not exceed 50 K. At higher temperatures the gear unit must be shut down immediately
and Siemens customer service consulted.
7.2.6
Gear unit with oillevel monitoring
When the signal "oil level too low" is given, it should be wired in such a way that the
drive motor cannot start and an alarm is triggered. During operation, any active signal
should be bridged.
7.2.7
Heating
Never switch the heating on, unless complete immersion of the rod heater in the oil
bath is ensured. Fire hazard!
If heating elements are installed afterwards the maximum heating capacity
(see Table 7 in item 6.16) on the outer surface of the heating element must not be
exceeded.
The correct setting of the switch points must be checked!
