| Item | Part No. | Part Name | Qty | Serial No. |
| 21F-70-00010 | BOOM ASS'Y | 1001- | ||
| 1 | \6\ | BOOM | 1001- | |
| 2 | 20S-70-11220 | BUSHING | 1001- | |
| 3 | 07145-00040 | SEAL,DUST | 1001- | |
| 4 | 20R-70-11181 | PIN | 1001- | |
| 5 | 07020-00000 | FITTING,GREASE | 1001- | |
| 6 | 20R-70-11260 | SPACER¤ 1.0MM | 1001- | |
| 7 | 01010-51230 | BOLT | 1001- | |
| 8 | 01602-21236 | WASHER,SPRING | 1001- | |
| 9 | 01643-31232 | WASHER | 1001- | |
| 10 | 20S-70-21220 | PIN | 1001- | |
| 11 | 07020-00000 | FITTING,GREASE | 1001- | |
| 12 | 20R-70-11260 | SPACER¤ 1.0MM | 1001- | |
| 13 | 20R-70-11250 | PLATE | 1001- | |
| 14 | 01010-51230 | BOLT | 1001- | |
| 15 | 01602-21236 | WASHER,SPRING | 1001- | |
| 16 | 01643-31232 | WASHER | 1001- | |
| 17 | 20R-70-11171 | PIN | 1001- | |
| 18 | 07020-00000 | FITTING,GREASE | 1001- | |
| 19 | 20R-70-11260 | SPACER¤ 1.0MM | 1001- | |
| 20 | 01010-51230 | BOLT | 1001- | |
| 21 | 01602-21236 | WASHER,SPRING | 1001- | |
| 22 | 01643-31232 | WASHER | 1001- | |
| 23 | 21F-98-11321 | BRACKET | 1001- |