Siemens 1LA8 Operating Instructions Manual page 8

Table of contents
8.9 faults.......................................................................................................................................92
8.9.1 Inspections in the event of faults............................................................................................92
8.9.2 Electrical faults.......................................................................................................................93
8.9.3 Mechanical faults...................................................................................................................94
8.9.4 Roller bearing faults...............................................................................................................95
9 Maintenance...............................................................................................................................................97
9.1 Inspection and maintenance..................................................................................................97
9.1.1 Safety instructions for inspection and maintenance...............................................................97
9.1.2 Measurement of the insulation resistance and polarization index in the context of
maintenance work..................................................................................................................98
9.1.3 Inspections in the event of faults............................................................................................99
9.1.4 First inspection after installation or repair..............................................................................99
9.1.5 General inspection...............................................................................................................100
9.1.6 Servicing the roller bearings.................................................................................................100
9.1.7 Servicing and maintaining the anti-condensation heating....................................................100
9.1.8 Regreasing intervals and types of grease for operating roller bearings...............................101
9.1.9 Sealing the rolling-contact bearings ("Increased degree of protection" option)...................104
9.1.10 Keeping the cooling air flow clean........................................................................................105
9.1.11 Touch up any damaged paintwork.......................................................................................105
9.1.12 Maintaining terminal boxes..................................................................................................105
9.2 Corrective Maintenance.......................................................................................................106
9.2.1 Prepare servicing work.........................................................................................................106
9.2.2 Seal the motor......................................................................................................................107
9.2.3 Fan cowl...............................................................................................................................107
9.2.4 External fan made of metal..................................................................................................108
9.2.5 External fan made of plastic.................................................................................................109
9.2.6 Internal fan...........................................................................................................................109
9.2.7 Roller-contact bearings........................................................................................................110
9.2.7.1 Uninstalling roller-contact bearings......................................................................................110
9.2.7.2 Remove V ring.....................................................................................................................111
9.2.7.3 Removing the labyrinth sealing ring.....................................................................................111
9.2.7.4 Assembling the rolling-contact bearings..............................................................................112
9.2.7.5 Install the V ring...................................................................................................................113
9.2.7.6 Installing the V ring ("Increased degree of protection" option).............................................114
9.2.7.7 Installing the labyrinth sealing ring.......................................................................................115
10 Spare parts...............................................................................................................................................117
10.1 Ordering data.......................................................................................................................117
10.2 Using commercially available spare parts............................................................................117
10.3 Ordering spare parts via the Internet...................................................................................117
10.4 Anti-condensation heating....................................................................................................118
10.5 Stator and rotor....................................................................................................................119
10.6 Ventilation............................................................................................................................120
10.7 Drive end rolling-contact bearings with bearing housing......................................................121
10.8 Drive end rolling-contact bearings without bearing housing.................................................122
10.9 Roller bearings, DE - end shield with integrated bearing cover...........................................123
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SIMOTICS TN Series N-compact 1LA8
Operating Instructions 05/2016