Siemens SIDOOR AT40 System Manual page 234

Geared motors
7.2 Installation
Motor MDG400 NMS
Note
Do not strike the shaft and bearings of the motors. Do not exceed the permissible axial and
radial forces on the shaft extension as specified by the configuration regulations. Axial forces
are not permitted for motors with integrated holding brake.
Only fit and remove output elements (for example, coupling, gear, belt pulley) using suitable
equipment (see figure):
● Using threaded hole in the shaft extension.
● Warm output element if necessary.
● Use washers to maintain the centering in the shaft extension for removal.
● If necessary, fully balance the motor with output elements according to ISO 1940.
Image 7-2
Procedure
Risk of injury and damage to property as a result of incorrect installation
Improper and incorrect installation can lead to serious injuries.
Observe the instructions for safe installation.
234
Fitting and removing output elements; A = intermediate washer (for maintaining the
centering in the shaft extension)
WARNING
AT40, ATD400V, ATD400K, ATD4xxW, ATD400S, ATE250S, ATD400T
System Manual, 06/2016, A2B00096162-AN