Precor 100i Owner's Manual page 75

Thread four locknuts (A) onto the bolts to secure the
display console onto its bracket. Wrench tighten using a
½-inch socket wrench.
Slide a plastic boot (D) onto each handlebar. As you face
the display, note which handlebar mounts on the right and
on the left pivot arm stubs. Attach the handlebars using
four 1¾-inch hex head screws (B), eight washers (C),
four locknuts (A). Wrench tighten.
Note: When the handlebars are mounted correctly, each
bends slightly outward.
Cover the fasteners with a plastic boot. Rotate the plastic
boot so its tab aligns with the cutout. Apply downward
pressure to secure the plastic boots in place.
100i Commercial AMT Assembly Guide 5