| Item | Part No. | Part Name | Qty | Serial No. |
| 20U-70-00492 | ARM ASS'Y | 22301- | ||
| 20U-70-00491 | ARM ASS'Y | 20001-22300 | ||
| 1 | \6\ | ARM | 20001- | |
| 2 | 20T-70-81140 | BUSHING | 20001- | |
| 3 | 22M-70-21740 | BUSHING | 22301- | |
| 20U-70-42510 | BUSHING | 20001-22300 | ||
| 4 | 07020-00000 | FITTING,GREASE | 20001- | |
| 5 | 21W-70-21380 | CUSHION | 20001- | |
| 6 | 20U-70-41361 | PLATE | 20001- | |
| 7 | 01010-81020 | BOLT | 20001- | |
| 8 | 01643-31032 | WASHER | 20001- | |
| 9 | 04434-51010 | CLIP | 20001- | |
| 10 | 01010-81016 | BOLT | 20001- | |
| 11 | 01643-31032 | WASHER | 20001- | |
| 12 | 07145-00050 | SEAL,DUST | 20001- | |
| 13 | 20U-70-42530 | SEAL | 20001- | |
| 14 | 20T-70-71571 | PIN | 20001- | |
| 15 | 04082-00212 | LOCK | 20001- | |
| 16 | 01010-81230 | BOLT | 20001- | |
| 17 | 01643-31232 | WASHER | 20001- | |
| 18 | 21W-70-21440 | SHIM¤ 3.0MM | 20001- | |
| 19 | 20T-70-81750 | SPACER¤ 0.5MM | 20001- | |
| 20 | 20T-70-81730 | SPACER¤ 1.0MM | 20001- | |
| 21 | 20S-70-71571 | PIN | 20001- | |
| 22 | 04082-00212 | LOCK | 20001- | |
| 23 | 01010-81230 | BOLT | 20001- | |
| 24 | 01643-31232 | WASHER | 20001- | |
| 25 | 20U-70-21780 | SHIM¤ 2.5MM | 20001- | |
| 26 | 20T-70-81710 | SPACER¤ 1.0MM | 20001- |