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Operating Instructions – Explosion-Proof AC Motors – DRS/DRE/DRP 315
7
Inspection and maintenance intervals
Inspection/Maintenance
7.1
Inspection and maintenance intervals
Unit/unit part
Time interval
Action
Motor
•
Every 10,000 operating hours
1)
1) For the DR.315 with relubrication device, please note the shortened relubrication periods in sec. "Bearing
lubrication DR.315".
Inspect the motor:
•
Check ball bearings and replace
if necessary
•
Replace the oil seal
•
Clean the cooling air passages
Drive
•
Varies
(depending on external factors)
•
Touch up or renew the surfaces/
anticorrosion coating
Air ducts and surfaces
of the motor and the
forced cooling fan if
applicable
•
Varies
(depending on external factors)
•
Clean air ducts and surfaces
