7
3.
Press a 50mm Square Inner Cap (8) into the indi-
cated end of the Backrest Frame (3). Press a
50mm x 75mm Angled Inner Cap (25) into the
other end of the Backrest Frame.
Attach the Adjustment Arm (5) to the Backrest
Frame (3) with two M10 x 75mm
Button Head
Bolts (19), two M10 Washers (22), and two M10
Nylon Locknuts (23). Do not tighten the
Locknuts yet.
5.
Attach the Backrest (6) to the Backrest Frame (3)
with four M6 x 16mm Screws (18).
4.
Attach the two Adjustment Pins (16), two Springs
(14), two Threaded Collars (15), and two Knobs
(13) to the Frame (1).
Press two 50mm Square Inner Caps (8) into the
Seat Frame (4).
Lubricate the M12 x 87mm
Button Head Bolt (17)
with grease. Have a second person pull the Knobs
(13) out as far as they will go. With the Adjustment
Arm (5) under the welded rod, attach the Backrest
Frame (3) and the Seat Frame (4) to the Frame (1)
with the Bolt and an M12 Nylon Locknut (24). Do
not overtighten the Locknut; the Backrest and
Seat Frame must be able to pivot easily.
Engage the lower Adjustment Pin (16) into the
Adjustment Arm (5). Engage the upper
Adjustment Pin into the Seat Frame (4). Make
sure the Pin is in the center of the hole in the
Adjustment Arm. Tighten the two M10 Nylon
Locknuts (not shown) used in step 3.
3
4
5
6
18
3
1
3
17
Welded
Rod
Lubricate
24
5
5
22
22
19
25
23
3
8
16
8
14
15
15
13
13
16
14
8
4
18
18
18
