Rockwell Automation 1492 1771-to-1756 I/O Swing-arm Conversion System - Manual (Page 2)

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De-energize and lockout any and all power to all I/O field devices connected to the 1771 I/O Chassis, and the power to the 1771
I/O Chassis itself. Ensure all power is de-energized and locked out to any device in the control cabinet where the conversion is to
be performed. Work shall be performed by qualified personnel. WARNING
II. Conversion Steps
1) Remove the 1771 I/O Swing-arm Hardware from the I/O Chassis
a) NOTE: ensure the power supply, processor or remote I/O adapter are removed from the chassis prior to removing the first I/O module.
Start I/O module swing-arm removal beginning with the left most I/O module in the chassis.
To remove the 1771 I/O module swing-arm/terminal block (Refer to Figure 1a and 1b). Press down and pull out on the module swingarm locking tab
located at the top of the 1771 module until it releases from the module. This will allow the swing-arm to pivot at the horizontal bar located at the
bottom of the 1771 chassis. Gently pull at the bottom part of the swing-arm until the swing-arm releases from the horizontal bar.
Figure 1a
Figure 1b
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