Dismantling - Siemens 1PH728 Series Operating Instructions Manual

Instructions relevant for safety
Warning
Before you begin working on the three-phase motor, in particular before you open
the covers of active parts, make sure that the three-phase motor or system is
properly isolated.
Notice
Whenever you have to transport the three-phase motor, pay attention to the
instuctions given in the section entitled "Transport, storage".
7.3.2

Dismantling

Instructions on disassembly
The drawings and parts lists do not contain any detailed information about the type
and dimensions of retaining elements and the like.
Notice
For this reason, before you begin disassembling, mark up the respective
assignment of retaining elements and the layout of the internal connections for
assembly if they have to be disconnected to allow maintenance work to be
conducted.
Notice
Use pullers or suitable devices to disassemble parts and components attached to
the motor shaft.
Three-phase motors of a vertical type of construction can be dismantled in the
horizontal position.
Working with three-phase motor in vertical position
Notice
When working on the locating bearing when the three-phase motor is in its vertical
position, support the rotor.
When attaching the rotor in the vertical position, make sure that the centering
recesses in the shaft ends ((DIN 332) - DS M24) have a recessed thread;
SIEMENS AG - Operating Instructions
Three-phase induction motor 1PH728.
Maintenance
7-9