Siemens SIMOTICS DP 1PC13, Руководство по эксплуатации

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Maintenance
9.5 Corrective maintenance
Smoke extraction motors
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Operating Instructions, 03/2016, 5 610 80000 40 018
9.5 Corrective maintenance
9.5.1 Reference to chapter Safety instructions
When carrying out any work on the machine, observe the general safety instructions
(Page 11) and the specifications contained in EN 50110-1 regarding safe operation of
electrical equipment.
9.5.2 Safety instructions
Safety instructions for smoke extraction motors
WARNING
Functional endurance when faults/fires occur
The insulation system of the machine is exposed to smoke and heat for 2 hours, which it
has to withstand. Changes to the winding and cable can result in death, serious injury, or
material damage.
Only the manufacturer must replace or repair special windings with heat resistant insulation
and motor cables. Under no circumstances should other repair workshops carry out this
work. The motors can no longer be repaired after a fault event (fire). Replace the motor,
even if it still functions.
9.5.3 Storage
Refer to the rating plate or the catalog for the designations of the bearings being used.
Bearing lifetime
Prolonged storage periods reduce the useful lifetime of the bearing grease. For permanently
lubricated bearings, this reduces the bearing service life.
We recommend that the bearings or grease are replaced after a storage time of 12 months;
if the time exceeds 4 years, replace the bearings or the grease.