Replacing the base riser from the three-slot secondary riser cageReplacing the base riser from the three-slot secondary riser cage
13. If two stacking risers are not installed, remove the base riser from the riser cage.
14. If two stacking risers are installed:
a. Remove all risers from the riser cage.
Retain all screws for future use.
b. Detach the stacking risers from the base riser.