7.Attach the Left and Right Frames (4, 5) to the Left and Right Bases (1, 2) with four M10 x 85mm Button Bolts (51) and four M10 Nylon Locknuts (65).
8.Attach the Top Cover (23) and the Bottom Cover (24) to the Center Frame (7) with two M4 x 15mm Screws (58) and an M4 x 30mm Screw (63).
Attach the Center Frame Extension (6) to the Center Frame (7) with two M10 x 53mm Button Bolts (49) and two M10 Nylon Locknuts (65).
9.Orient the Headrest Frame (9) and the Backrest Frame (8) as shown. Attach the Headrest Frame to the Backrest Frame with two M10 x 16mm Button Screws (54).
7 |
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5 | 65 |
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65 |
| 2 | 4 |
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| 65 |
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| 65 |
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| 1 |
| 51 |
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| 51 |
8 | 58 | 23 |
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| 24 | |
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| 7 |
| 63 |
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| 58 |
49 |
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| 6 | 65 |
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9 |
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| 9 |
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| 54 |
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| 54 |
| 8 |
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9 |
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