Keys Fitness 1550 Owner's Manual page 12

Assembly
Step 3
Install the Main Upright (2) onto the Seat Pad Support Receptacle (1). Secure it in place using three Nylon
Locknuts (93), six Washers (91), and three Bolts (80) on the side. Two Bolts (87), one Spring Washers (88),
three Washers (90), one Nylon Locknut (92) will secure it at the bottom.
Figure 3
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