KAESER CSD 75, Service Manual, Page: 43 / 81

Maintenance
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9.7 Maintaining the Electric Motor
Compressor motor:
The bearings are greased via fittings on the tops of the bearing end shields.
Initial greasing of the bearings is carried out by the manufacturer.
See chapter 1.9 for greasing periods, quantity and approved greases.
Remove cover panels (2 and 3, see chapter 9.2).
Clean the fittings before greasing to avoid dirt being carried in with the grease.
Grease the bearings on both ends of the shaft with the motor running.
Close all maintenance doors and reattach all cover panels.
The motor has no outlet bores for the grease. Therefore, care must be
given to ensure that the bearings are not over greased. Please refer to
section 1.8 for proper grease quantities. Also, bearing cavity must be
cleaned and regreased every 20,000 hours to 35,000 hours, depending
on environmental conditions.
The bearing covers and/or the end shields must be removed and the
old grease disposed of according to environmental regulations.
Fan motor:
The electrical motor bearings are permanently greased.
Have the motor bearings replaced by an authorized KAESER distribu-
tor in accordance with the maintenance schedule (see chapter 1.9).
9.8 Testing the Safety Relief Valve on the Oil Separator Tank
To test the set point of the safety relief valve, the compressor must be run so that its dis-
charge pressure exceeds the maximum pressure set on the SIGMA CONTROL.
See chapter 1.5 for the safety relief valve activating pressure.
Have the safety relief valve tested by an authorized KAESER distribu-
tor in accordance with the maintenance schedule (see chapter 9.3).
For more details see SIGMA CONTROL manual.
Attention!
Attention!
Attention!