Maintenance Motor of fans Rosenberg

Schedule for maintenance Motor of fans Rosenberg

	At Regular Intervals	As Required
Check the fan for functioning, operational readiness, quiet running, and noise generation	x
Confirm that the rotor is running in the correct direction (at all speed levels)	x
Check the consumption of current with respect to phase symmetry	x
Replace bearings at the end of the grease consumption period, or regrease with approved grease.		x
Where applicable, check the functioning of vibration dampers	x
Confirm the correct functioning of electrical and mechanical protective devices	x

At the end of the grease usage period, and also because of ageing of the grease, in standard

applications it is recommended to replace the bearings after approx. 27,000 hours. For regreasable

bearings, the specified regreasing intervals must be complied with.

Check the fan regularly for mechanical oscillations, and document them. Maximum vibration velocity in

a radial direction to the bearings or the bearing shield of the motor:

Rotors with nominal diameters >315 mm: 4.5 mm/s.

Rotors with nominal diameters up to 315 mm: 7.1 mm/s

The contact addresses are to be found in the attachment, or else please phone +49 (0)7940 / 142- 209