STEP 9
Secure two Backboard Connecting Plates (#13) to Backboard (#9) with 4 sets of Bolts, Washers,
and Nuts (#15).
STEP 10
a. Attach two Short Connecting Tubes (#7) to Upper Parts of two Backboard Connecting Plates
(#13) with 2 sets of Bolts, Washers, and Nuts (#36).
b. Attach two Long Connecting Tubes (#8) to Lower Parts of two Backboard Connecting Plates
(#13) with 2 sets of Bolts, Washers, and Nuts (#36).