Siemens SIMOTICS M-1PH8 Operating Instructions & Installation Instructions page 54

Assembling
5.8 Mounting the output elements
Pushing on the power output elements
● Prerequisites:
● Pulling on:
Shaft extensions with feather key
To maintain the balancing quality, you have the following options:
● If the transmission element is shorter than the feather key with balancing type "H", then you
● If the output element is mounted up to the shaft shoulder for motors with full-key balancing
The feather key can fall out
The feather keys are only locked against falling out during shipping. If a machine with two
shaft extensions does not have an output element on one shaft extension, the feather key
can fall out during operation.
Death or serious injury can result.
● Do not operate the machine unless the transmission elements have been pulled on.
● On shaft extensions without output element, make sure that the feather key cannot fall
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– The coupling and/or the output element must be appropriately dimensioned for the
operating case at hand.
– Comply with the coupling manufacturer's instructions.
– Make sure that the balancing type of the transmission element correctly matches the
type of balance of the rotor.
– Use only ready drilled and balanced transmission elements. Check the hole diameters
and the balancing status before pulling them on. Thoroughly clean the shaft extension.
– Warm up the transmission elements to expand them before pulling them on. Select the
temperature difference for the heating process to suit the coupling diameter, fit and
material. See the coupling manufacturer's instructions.
– Power output elements may only be pushed on or pulled off with the correct equipment.
The transmission element must be pulled on in one continuous operation via the front
thread holes in the shaft or pushed on by hand.
– Do not strike it with a hammer, as this would damage the bearings.
must machine off the section of feather key protruding from the shaft contour and
transmission element in order to maintain the balance quality.
"F", or if the output element is longer than the motor shaft extension, then when balancing
the coupling or belt pulley, take into account that the feather key does not completely fill
the slot in the hub.
WARNING
out and shorten it by approximately half for balance type "H".
Operating Instructions 05/2012 A5E03986435A AA
SIMOTICS M-1PH8