Rockwell Automation SD3100 Kit Instructions Armature Assembly Heatsink - Manual (Page 6)

6 SD3100 Armature Heatsink Assembly Replacement (for 1250 and 1650A Drives)
Publication S-3065 - July 1998
Replacing the Heatsink Assembly 1. Place the new assembly into the drive (with the snubbers to the
right), and rest the lower bracket (or busbar) on the mounting peg
(a lifting device may be used).
2. Mount the assembly, securing the three mounting bolts to the top
and bottom of the assembly. Torque the Glastic™ surface to 25
lb-ft and the busbar mounting surface to 25 lb-ft.
3. Mount the two fuses with the label text upright, and the black
indicators away from each other. Torque the fuse bolts to 25 lb-ft.
4. Connect the gate lead connector to J1 on each armature-pulse
transformer board. Ensure that the connectors for all six assem-
blies in the drive are secure.
Note: Match the board names (i.e. A14R) with the wire labels
(i.e. A14R-J1) to verify proper connections.
5. Connect the thermoswitch plug to the incoming thermoswitch
lead (upper assemblies only). Ensure that the connectors for the
three upper assemblies are secure.