7.4 Set values for monitoring the winding temperature................................................................92
7.5 Commissioning an external fan..............................................................................................93
7.6 Switching on...........................................................................................................................94
8 Operation....................................................................................................................................................95
8.1 Safety instructions for operation.............................................................................................95
8.1.1 Operation in hazardous areas................................................................................................96
8.2 Regreasing rolling bearings ...................................................................................................98
8.3 Switching on again after an emergency switching-off ............................................................98
8.4 Electrical and mechanical faults.............................................................................................99
8.5 Rolling bearing faults............................................................................................................101
8.6 Deactivating .........................................................................................................................101
8.7 Avoidance of condensation or formation of condensation within the machine.....................101
8.8 Non-operational periods.......................................................................................................102
8.8.1 Measures in non-operational periods...................................................................................102
8.8.2 Rolling bearing damage when at a standstill........................................................................103
9 Maintenance .............................................................................................................................................105
9.1 Safety instructions for maintenance .....................................................................................105
9.2 Inspection and maintenance ................................................................................................105
9.2.1 Safety instructions for inspection and maintenance.............................................................105
9.2.2 General inspection specifications.........................................................................................107
9.2.3 First inspection after installation or repair ............................................................................108
9.2.4 Main inspection ....................................................................................................................109
9.2.5 Maintenance intervals ..........................................................................................................109
9.2.6 Servicing and maintaining the anti-condensation heating....................................................110
9.2.7 Servicing the external fan.....................................................................................................110
9.2.8 Assessing the rolling bearings .............................................................................................111
9.2.9 Regreasing intervals and types of grease for operating rolling bearings .............................111
9.2.10 Capacity of the spent grease chamber ................................................................................115
9.2.11 Sealing the rolling bearings ("Increased degree of protection" option) ................................116
9.2.12 Keeping the cooling air flow clean........................................................................................116
9.2.13 Cleaning ...............................................................................................................................116
9.2.14 Drain condensate .................................................................................................................117
9.2.15 Touch up any damaged paintwork .......................................................................................117
9.2.16 Repainting ............................................................................................................................118
9.2.17 Maintaining terminal boxes ..................................................................................................119
9.3 Corrective maintenance .......................................................................................................119
9.3.1 Fundamentals ......................................................................................................................120
9.3.1.1 Screws with preCOTE coating .............................................................................................120
9.3.1.2 Screw lock washers .............................................................................................................121
9.3.2 Fan cowl...............................................................................................................................121
9.3.3 External fan made of metal ..................................................................................................121
9.3.4 External fan made of plastic.................................................................................................123
9.3.5 External fan cover ................................................................................................................123
9.3.6 Rolling bearing .....................................................................................................................124
Table of contents
1MB5 SH 400/450
6 Operating Instructions, 05/2019, A5E45959221A
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