8.Press four 25mm Square Inner Caps (24) into the Backrest Tubes (9).
Orient the Backrest Tubes (9) so that the indicat- ed holes are closer to the bottom. Attach the Backrest Bracket (8) to the Backrest Tubes with four M10 x 45mm Button Bolts (35), four M10 Washers (41), and four M10 Nylon Locknuts (43).
Do not tighten the Locknuts yet.
9.Pull out the Pop Pin (22) as far as it will go. Insert the Backrest Bracket (8) through the slot in the Bench Frame (1). Engage the Pop Pin into a hole in the Backrest Bracket.
Lubricate an M10 x 155mm Button Bolt (36) with grease. Attach the Backrest Tubes (9) to the Bench Frame (1) with the Bolt, two M10 Washers (41), and an M10 Nylon Locknut (43). Do not overtighten the Locknut; the Backrest Tubes must be able to pivot easily.
10.Attach the Backrest (17) to the Backrest Tubes
(9) with four M6 x 38mm Screws (48) and four M6 Washers (34).
Tighten the four M10 Nylon Locknuts (43) used in step 8.
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8
