Keys Fitness KF-1560 Owner's Manual page 9

Assembly
Step 2
Slide Seat Pad Support Receptacle (1) onto Rear Base (3) and secure in place using three
Nylon Locknuts (93), six Washers (91), and three Bolts (80).
Connect Front Upright (5) onto Seat Pad Support Receptacle (1) and secure together using
two Nylon Locknuts (93), four Washers (91), and two Bolts (79).
Figure 2