IBM 3180 1 User Manual page 111

17. Holding the right side of the logic element away
from the display element, insert the two left
latches into the corresponding holes on the
display element.
18. Firmly push the right side of the logic element
into the display element, making sure the two
right latches are secure.
Latches
m
20. Turn the lever on the bottom of the logic element to
the closed position.
mm
Open Closed
Chapter 5. Element Removal and Replacement Procedures 103