Siemens 1PL618 Series Operating Instructions Manual page 60

Maintenance
7.3 Corrective Maintenance
NOTICE
Before you start dismantling them, you should therefore mark up the respective assignment
of retaining elements and the layout of the internal connections for assembly if they have to
be disconnected for maintenance work.
NOTICE
Use pullers or suitable devices to disassemble parts and components attached to the motor
shaft.
Three-phase motors of a vertical construction type 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 M20 have a recessed thread; eye-bolts must have a minimum
length of 35 mm.
The rotor weights for the 1PL6 three-phase motors can be found in the following table:
1PL618.
Size
Weight (kg)
Disassembling the three-phase motor
● To disassemble the motor, disconnect the connecting cables from the terminals and the
● Disconnect the connecting cables in the terminal box of the fan motor and, if necessary,
Links
The terminal diagram (see "Connecting the stator winding") contains the conditions required
for line connection.
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entry plate from the terminal box housing.
In this way, the respective positioning of the cables in relation to one another and sealing
of the cables in the cable entries is largely maintained.
the cable from the ground terminal. In addition, disconnect the speed sensor plug
connector.
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Siemens AG Operating Instructions 2.02 1PL618
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