Rockwell Automation 1492 1771-to-1756 I/O Swing-arm Conversion System - Manual (Page 10)

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II. Conversion Steps
8) Attach the Conversion Cover-plate to the Conversion Base-plate
To attach the cover-plate to the base-plate use the following procedure:
a) Refer to Figure 8a. At the upper right and left side of the cover-plate are hinge/pivot brackets. These fit into mating slots at the top of the
base-plate to attach both of the components together. Locate these component mounting features before assembly.
b) Refer to Figure 8b, With the cover-plate at about a 30-45 degree angle from the base-plate, guide the cover-plates hinge / pivot brackets into the
mating slots of the base-plate. Note:Be careful not to pinch you fingers between the base and cover plate .Refer to Figure 8c.
c) With the cover-plate hinge engaged into the base-plate slots slowly lower the bottom of the cover-plate.
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Figure 8a
Figure 8b
Figure 8c
Base-plate slot
Cover-plate
hinge