Sunny Health & Fitness SF-RB1117 - Manual (Page 14)

Assembly & Adjustments
5 . Connect the Backrest Stem Support (21) to the Saddle support (7)
with 2 x M8 Flat Washers (8a) and 2 x M8 Dome Nut (16) and 2 x M8
carriage Bolts (24) and 2xM8 Spring Washer (15).
6
. Remove 4 x M6 Flat Washers (27) and 4 x M6 Screws (26) from the
Backrest Support (23). Fix the Backrest (30) to the Backrest Support (23)
and reassemble the washers and nuts previously removed. Attach the
Backrest Support (23) to the Backrest Stem Support (21) with M8 Allen
Bolt (25), Flat Washer (8a), M8 Spring Washer (15) and M8 Dome Nut
(16).
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