Siemens 1PQ8, Operating Instructions & Installation Instructions

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WARNING
Machine damage caused by improper repair work
Improper servicing work can damage the machine. This can cause damages and/or faults
which can result in eventual or immediate death, serious injury, or property damage.
● Properly assemble or disassemble the machine.
● Use only suitable tools and equipment.
● Immediately replace damaged components.
● Contact the Service Center (Page 129), if necessary.
WARNING
Rotor can fall out
If the motor is in a vertical position, the rotor can fall out while work is being performed on the
locating bearing. This can result in death, serious injury or damage.
● Support or unload the rotor when carrying out work with the machine in a vertical position.
9.2.2 Seal the motor
Extreme caution and attention to cleanliness are vital to installation.
● Clean all bare joints between parts such as housings, bearing shields and bearing bushes
etc., and remove old sealant material.
● Smear bare joints between parts with non-hardening, permanently flexible sealant, such
as "Hylomar M". Follow the manufacturer's application and safety instructions when doing
this.
● Check all sealing elements, such as those on the terminal boxes, for elasticity, aging or
damage, and renew them if they are no longer effective.
9.2.3 Screws with preCOTE coating
The motor can partly be fitted with screws with preCOTE coating. To ensure screw locking,
use new screws with preCOTE coating during assembly/repair. As an alternative, use normal
screws with a threadlocker such as Loctite.
Maintenance
9.2 Corrective Maintenance
SIMOTICS TN Series N-compact 1LH8
104
Operating Instructions 06/2017