Maintenance Of The External Fan - Siemens 1PH728 Operating Instructions Manual

NOTICE
Inspection if there are faults or unusual conditions
Unusual conditions or faults that represent electrical or mechanical overstressing of the
three-phase motor, such as overload, short circuit, etc. can cause consequential damage to
the machine.
If there are faults or unusual conditions such as overload or short circuit etc. immediately
perform the inspections.
Measures, maintenance intervals
Operating conditions and characteristics can vary widely. For this reason, only general
maintenance intervals can be specified here.
● Maintenance intervals should therefore be scheduled to suit the local conditions (fouling,
● Perform the following measures after the operation time or the interval specified in the
Table 7-1
measures
Initial inspection
Regreasing
Cleaning
Main inspection
[ID: 357.01]
7.1.3

Maintenance of the external fan

Procedure
● Check the external fan VDI 2056 annually for mechanical vibrations. The maximum
● Regularly clean and inspect the fan. Impeller and frame are subject to natural wear
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Siemens AG Operating Instructions 2.02 1PH728
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switching frequency, load, etc.).
following table elapses.
Measures after operating times or intervals
permissible vibrational severity is 2.8 mm/s measured on the end shield of the impeller-
side motor bearing.
depending on the area of application and displacement medium.
Operating tines and intervals
After 500 operating hours, at the latest after 1/2 years
See lubricant plate plate
Depending on degree of local fouling
After approximately 16000 operating hours, at the latest after 2 years
Maintenance
7.1 Maintenance
51