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7.3
Greasing the roller bearings prior to commissioning..............................................................67
7.4
Minimum radial forces for cylindrical roller bearings..............................................................67
7.5
Commissioning an external fan..............................................................................................68
7.6
Switch on................................................................................................................................69
7.7
Overspeed..............................................................................................................................70
7.8
Switch off................................................................................................................................71
8
Operation....................................................................................................................................................73
8.1
Switching on the machine......................................................................................................74
8.2
Regreasing roller bearings.....................................................................................................75
8.3
Deactivating...........................................................................................................................75
8.4
Switching on again after an emergency switching-off............................................................75
8.5
Stoppages..............................................................................................................................75
8.5.1
Measures in non-operational periods.....................................................................................76
8.5.2
Avoidance of frost and corrosion damage in the cooling system...........................................77
8.5.3
Avoidance of damage to roller bearings during stoppages....................................................77
8.5.4
Measurement of the insulation resistance after an extended stoppage.................................77
8.6
Decommissioning the machine..............................................................................................78
8.7
Re-commissioning the machine.............................................................................................78
8.8
Special operating conditions..................................................................................................79
8.9
Faults ....................................................................................................................................79
8.9.1
Inspections in the event of faults............................................................................................79
8.9.2
Faults in operation..................................................................................................................80
8.9.3
Faults at the external fan........................................................................................................80
8.9.4
Air-to-water heat exchanger faults.........................................................................................81
8.9.5
Roller bearing faults...............................................................................................................82
8.9.6
Brush faults............................................................................................................................83
8.9.7
Commutator faults..................................................................................................................84
9
Maintenance...............................................................................................................................................85
9.1
Inspection and maintenance..................................................................................................85
9.1.1
Initial inspection......................................................................................................................86
9.1.2
MTTR.....................................................................................................................................88
9.1.3
Main inspection......................................................................................................................88
9.1.4
Regreasing rolling-contact bearings.......................................................................................89
9.1.5
Regreasing intervals and grease types..................................................................................90
9.1.6
Clean the machine.................................................................................................................91
9.1.7
Checking the carbon brushes................................................................................................91
9.1.8
Replacing the carbon brushes...............................................................................................92
9.1.9
Setting the brush rocker and brush holder.............................................................................93
9.1.10
Maintaining the commutator...................................................................................................93
9.1.11
Maintaining terminal boxes....................................................................................................95
9.1.12
Touch up any damaged paintwork.........................................................................................96
9.2
Repair.....................................................................................................................................96
9.2.1
Prepare servicing work...........................................................................................................97
SIMOTICS DC 1HS6
Operating Instructions 02/2016
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