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Siemens 1LA8 Operating Instructions Manual Page 8

Simotics tn series induction motor.
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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
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
9.1.9
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
8
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 05/2016

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