| Item | Part No. | Part Name | Qty | Serial No. |
| 20U-70-00102 | BOOM ASS'Y,FIRST | 3401- | ||
| 1 | \6\ | BOOM | 3401- | |
| 2 | 201-70-21182 | BUSHING | 1996- | |
| 3 | 20U-70-11310 | BUSHING | 1001- | |
| 4 | 07020-00675 | FITTING,GREASE | 1001- | |
| 5 | 07145-00060 | SEAL,DUST | 1001- | |
| 6 | 20U-70-11160 | SHAFT | 1001- | |
| 7 | 20B-46-21180 | PLATE¤ 1.0MM | 1001- | |
| 201-70-21290 | SPACER¤ 1.0MM | 1001- | ||
| 8 | 20U-70-11330 | PLATE | 1001- | |
| 9 | 01010-51230 | BOLT | 1001- | |
| 10 | 01643-31232 | WASHER | 1001- | |
| 11 | 201-70-23140 | SPACER¤ 1.0MM | 1001- | |
| 12 | 20U-70-11192 | PIN | 1897- | |
| 13 | 01010-51635 | BOLT | 1001- | |
| 14 | 20T-70-41160 | SPACER | 1897- | |
| 15 | 20U-70-11361 | PIN | 1897- | |
| 16 | 07020-00000 | FITTING,GREASE | 1001- | |
| 17 | 201-70-23140 | SPACER¤ 1.0MM | 1001- | |
| 18 | 01010-51635 | BOLT | 1001- | |
| 19 | 20T-70-41160 | SPACER | 1897- | |
| 20 | 20U-70-11251 | PLATE | 2304- | |
| 21 | 01010-50816 | BOLT | 3401- | |
| 22 | 21X-70-11410 | PAD | 2457- | |
| 23 | 21X-70-11420 | COLLAR | 2457- | |
| 24 | 01643-30823 | WASHER | 2457- | |
| 25 | 01010-50612 | BOLT | 1001- | |
| 26 | 01643-30623 | WASHER | 1001- | |
| 27 | 20U-70-11272 | COVER | 3401- | |
| 28 | 01010-51020 | BOLT | 1001- | |
| 29 | 01643-31032 | WASHER | 1001- |