User Guide
13
Rotate the thoracic support so the front pads are about 4
inches (10 cm) lower than the rear curved pads. Loosen
the four allen screws on the central block, only one or two
turns is necessary. Rotate the support arms and tighten all
four allen screws firmly.
Insert the center vertical column into the top of the
square opening in the center of the upper frame. Remove
the end
-
cap from the column. Slide the center vertical
column into the square opening.
Make sure that the nuts attached to
the screws can slide into the
groove of the vertical column. It
may be necessary to rotate the
screws a few turns to line up the
nuts correctly. Slide the center
column toward the floor until
about 5 inches (13 cm) extends
below the square opening. Firmly
tighten both of the screws located
on the side of the square tube until
the column is securely in place.
Screws
Figure 12
Screws
Figure 11
Rotate