Chapter 12 Installing, Removing, and ReplacingPermanently Removing Expansion Modules From an Existing LibraryScalar i500 User’s Guide 3757 Open the module’s access door and raise the guide pin by pulling itup and turning it slightly as if it were a screw. Otherwise, the guidepin may scratch the front doors of the module beneath it.8 From the front of the library, slide the entire module toward you andlift it off of the module below it.9 Repeat these procedures for each module that you intend to remove.10 Remove and replace the cover plates, if appropriate (see Figure 59).a If you plan to stack the control module at the top of the library,and if an expansion module will be located below it, remove thecontrol module’s bottom cover plate and the expansion module‘stop plate.b If you plan to stack the control module between expansionmodules, remove both the top and bottom plates of the controlmodule. Also remove the top plate of the expansion modulelocated below the control module and the bottom plate of theexpansion module located above the control module.c If you plan to stack the control module at the bottom of thelibrary, and if an expansion module will be located above it,remove the control module’s top plate and the expansionmodule’s bottom plate.Caution: Before removing the control module’s bottom coverplate, the robot assembly must be parked as describedin Preparing to Remove or Replace a Module onpage 362.
