Main Service; Repair; Instructions For Repair - Siemens 1PH728 Series Operating Instructions Manual

Maintenance
7.2.3

Main service

Inspection interval for major inspection
The major inspection is conducted after approx. 16,000 operating hours or at the
latest after 2 operating years.
Conducting the major inspection
•= Check, while the motor is running, that:
the equipment conforms to the stated electrical characteristics.
–
the smooth running characteristics and motor noise during operation have
–
not deteriorated.
•= Check, while the motor is shut down, that:
the motor foundation has no indentations or cracks.
–
the motor is aligned within the permissible tolerance ranges.
–
all of the mounting bolts for the mechanical and electrical connections are
–
tight .
the winding insulation resistances are sufficiently high.
–
cables and insulating parts and components are in a good condition and are
–
not discoloured.
Notice
Impermissible deviations detected during this inspection must be eliminated
immediately.
7.3

Repair

7.3.1

Instructions for repair

Qualified persons
Only properly qualified persons should be entrusted with the commissioning and
operation of machines and equipment. Qualified persons, as far as the safety
instructions given in this manual are concerned, are those who have the necessary
authorization to commission, earth and identify equipment, systems and circuits in
accordance with the relevant safety standards.
7-8
SIEMENS AG - Operating Instructions
Three-phase induction motor 1PH728.