| Item | Part No. | Part Name | Qty | Serial No. |
| 20U-70-00401 | ARM ASS'Y | 3401- | ||
| 20U-70-00400 | ARM ASS'Y | 1001-3400 | ||
| 1 | \6\ | ARM | 3401- | |
| \6\ | ARM | 1001-3400 | ||
| 2 | 20T-70-41222 | BUSHING | 3401- | |
| 20T-70-25730 | BUSHING | 1001-3400 | ||
| 3 | 20T-70-25740 | BUSHING | 1001- | |
| 4 | 07145-00050 | SEAL,DUST | 1001- | |
| 5 | 07145-00045 | SEAL,DUST | 1001- | |
| 6 | 07020-00000 | FITTING,GREASE | 3401- | |
| 7 | 20U-70-12231 | SHAFT | 1897- | |
| 7 | (\4\20U-70-12230) | SHAFT | 1001-1896 | |
| (20U-70-12231{20T-70-41160)} | ||||
| 8 | 07020-00000 | FITTING,GREASE | 1001- | |
| 9 | 20T-70-19130 | SPACER¤ 1.0MM | 1001- | |
| 10 | 01010-51635 | BOLT | 1001- | |
| 11 | 20T-70-41160 | SPACER | 1897- | |
| 01643-31645 | WASHER | 1001-1896 | ||
| 12 | 20U-70-12241 | SHAFT | 1897- | |
| (\4\20U-70-12240) | SHAFT | 1001-1896 | ||
| (20U-70-12241{20T-70-41160)} | ||||
| 13 | 07020-00000 | FITTING,GREASE | 1001- | |
| 14 | 20T-70-19130 | SPACER¤ 1.0MM | 1001- | |
| 15 | 01010-51635 | BOLT | 1001- | |
| 16 | 20T-70-41160 | SPACER | 1897- | |
| 01643-31645 | WASHER | 1001-1896 |