Rockwell Automation 7000A PowerFlex Medium Voltage AC Drive (A Frame) - ForGe Control - Manual (Page 107)

Rockwell Automation Publication 7000A-UM200C-EN-P - June 2014 107
Component Definition and Maintenance Chapter 3
Top of Integral Line Reactor and Input Starter Section
Figure 88 - Starter/Line Reactor Cabinet Fan Removal
1. Remove the top ventilation cover from the exterior of the cabinet.
2. Remove mounting screws and invert fan mounting bracket to expose fan
mounting hardware.
3. Unplug or disconnect fan leads from terminal blocks and replace fan.
4. Reassemble in the reverse order of removal.
Impeller Removal from Motor Shaft
The fan impeller is held onto the motor shaft with a split tapered bushing. This
bushing is positioned on the motor shaft and through the center of the impeller.
Two cap screws, when tightened to 10.2 N•m (7.5 lb•ft), lock the bushing onto
the motor shaft and the impeller to the bushing.
Safety Notes
The impeller is fragile. Do not allow the impeller to support the weight of the
motor.
If vertical, the impeller and bushing may fall when loosening cap screws. Physical
injury or component damage may result.
Ventilator Cover
Terminal Blocks
Fan Mounting Blocks
Fans