Precor 5.23 - Manual (Page 65)

EFX5.33 Elliptical Fitness Trainer Assembly Guide 5
Attach both stabilizers to the upright support
bracket using eight hex head screws (D) and
eight washers (E). Finger tighten.
Attach the lower portion of both stabilizers to the
base frame using eight hex head screws (D) and
eight washers (E). Wrench tighten.
Return to the upright support bracket. Wrench
tighten the eight screws that secure the
stabilizers to the bracket.
Secure the upright support. Wrench tighten the two
screws holding the upright support onto the base.
Thread the hex nut and height
adjuster into the base. Wrench
tighten the nut.