Keys Fitness KF-1560 Owner's Manual page 14

Assembly
Step 
Install Seat Pad (25) onto Seat Pad Support (9) using two Washers (91) and two Allen Bolts
(83).
Slide the Seat Pad Support assembly (9) into Seat Pad Support Receptacle (1) and secure
with Locking Pop Pin.
Install Back Pad (26) to Back Pad Support (10) using two Allen Bolts (83) and two Washers
(91). Slide the Back Pad Support assembly (10) into the Main Upright (2) and secure with
Locking Pop Pin.
Figure 
14