Craftsman 320.48278 Owner's Manual page 4

OPERATION
Open flip lever to release leg for
adjustment. Close lever to lock leg
in position.
To slide the center column
extension up and down, loosen
knob (A). Tighten knob to lock in
place.
For a finer adjustment of the
column extension, tighten knob A
(Fig. 3) and rotate the crank, Fig. 4.
FIG. 2
4