| Item | Part No. | Part Name | Qty | Serial No. |
| G-1 | (\8\20S-973-X190) | BOOM GROUP | 10001- | |
| ==================== | ||||
| 20S-973-0110 | BOOM ASS'Y | 10001- | ||
| 1 | \6\ | BOOM | 10001- | |
| 2 | (20S-70-31170) | BUSHING | 10001- | |
| 3 | (07145-00040) | SEAL,DUST | 10001- | |
| 4 | (07020-00675) | FITTING,GREASE | 10001- | |
| ==================== | ||||
| G-2 | (\8\20S-70-X1200) | BOOM PIN GROUP | 10001- | |
| ==================== | ||||
| 5 | (20S-70-31140) | PIN | 10001- | |
| 6 | (20R-70-11260) | SPACER¤ 1.0MM | 10001- | |
| 7 | (20S-70-31240) | PLATE | 10001- | |
| 8 | (01010-51225) | BOLT | 10001- | |
| 9 | (01643-31232) | WASHER | 10001- | |
| 10 | (20S-70-31161) | PIN | 10001- | |
| 11 | (07020-00000) | FITTING,GREASE | 10001- | |
| 12 | (20R-70-11260) | SPACER¤ 1.0MM | 10001- | |
| 13 | (01010-51230) | BOLT | 10001- | |
| 14 | 20S-70-31180 | SPACER | 10001- | |
| 15 | (20S-70-31161) | PIN | 10001- | |
| 16 | (07020-00000) | FITTING,GREASE | 10001- | |
| 17 | (20R-70-11260) | SPACER¤ 1.0MM | 10001- | |
| 18 | (01010-51230) | BOLT | 10001- | |
| 19 | (20S-70-31180) | SPACER | 10001- | |
| ==================== | ||||
| G-3 | (\8\20S-70-X1600) | CYLINDER COVER GROUP | 10001- | |
| ==================== | ||||
| 20 | (20S-70-31720) | COVER | 10001- | |
| 21 | (01010-51020) | BOLT | 10001- | |
| 22 | (01643-31032) | WASHER | 10001- | |
| 23 | (21X-70-11410) | PAD | 12204- | |
| (20U-70-11261) | PAD | 10001-12203 | ||
| 24 | (21X-70-11420) | COLLAR | 12204- | |
| 25 | (01010-50612) | BOLT | 10001- | |
| 26 | (01643-30623) | WASHER | 10001- | |
| 27 | (20S-70-31710) | BRACKET | 10001- | |
| 28 | (01010-50812) | BOLT | 10001- | |
| 29 | (01643-30823) | WASHER | 12204- | |
| ==================== |