Noise Emission; Alignment And Fastening - Siemens SIMOTICS A 1FU8 Operating Instructions Manual

● When mounting output transmission elements (coupling, gear wheel, belt pulley etc. ) use
the thread at the shaft end.
● Use a suitable device when withdrawing output elements.
● When mounting or withdrawing, do not apply any blows, for example with a hammer or
similar tool, to the parts to be mounted or withdrawn.
● Only transfer radial or axial forces specified in the catalog to the motor bearings via the
shaft extension.
5.4.6

Noise emission

Hearing damage when operating synchronous motors
If you exceed the permissible sound pressure level, hearing damage can occur when
operating synchronous motors at their rated power.
Observe the maximum permissible sound pressure level according to the ISO 1680
standard. The maximum permissible sound pressure level is 70 dB (A).
5.5

Alignment and fastening

Observe the following when aligning and mounting:
● Ensure a flat and uniform contact surface for foot and flange mounting.
● Precisely align the machine when couplings are used.
● Ensure that the mounting surfaces are clean and free of any dirt.
● Remove any anti-corrosion protection using white spirit.
● Avoid installation-related resonances with the rotating frequency and twice the line
frequency.
1FU8
Operating Instructions, 02/2016, 5 610 70000 02 000
Mounting output transmission elements
If possible, heat up the output transmission elements as required.
CAUTION
Assembly
5.5 Alignment and fastening
47