PaceMaster Bronze XRC Owner's Manual page 15

7. To assemble the Backrest
Step 7A: Install the Seat Back (103) to the Seat
Base using Bolts (108), and Flat Washers (5), then
tighten using the 6mm Allen Wrench (118).
Washer 18 x 9 x 2.0t 4PCS (5)
Allen Bolt M8 x 1 54PCS (108)
A
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