| Item | Part No. | Part Name | Qty | Serial No. |
| 203-70-00400 | BOOM ASS'Y | | K20001-@ |
| 203-70-00450 | BOOM ASS'Y,(FOR ADD. PIPING) | | K20001-@ |
| 203-70-00490 | BOOM ASS'Y,(FOR OVER LOAD WARNING DEVICE) | | K20001-@ |
| 1 | \6\ | BOOM | | K20001-@ |
| \6\ | BOOM,(FOR ADD. PIPING) | | K20001-@ |
| \6\ | BOOM,(FOR OVER LOAD WARNING DEVICE) | | K20001-@ |
| 2 | 203-70-59530 | BRACKET (WELDED) | | K20001-@ |
| 3 | 203-46-41130 | SEAT (WELDED) | | K20001-@ |
| 4 | 203-70-56121 | BUSHING | | K20001-@ |
| 5 | 07145-00070 | SEAL,DUST | | K20001-@ |
| 6 | 07145-00070 | SEAL,DUST | | K20001-@ |
| 7 | 07020-00675 | FITTING,GREASE | | K20001-@ |
| 8 | 202-70-61180 | PIN | | K20001-K20244 |
| 9 | 21K-70-11410 | PLATE | | K20001-@ |
| 10 | 203-70-41460 | SPACER¤ 1.0MM | | K20001-@ |
| 11 | 01019-11640 | BOLT | | K20001-@ |
| 12 | 01580-11613 | NUT | | K20001-@ |
| 13 | 202-70-61210 | PIN | | K20001-@ |
| 14 | 203-70-34270 | SPACER¤ 0.5MM | | K20001-@ |
| 203-70-11210 | SPACER¤ 1.0MM | | K20001-@ |
| 15 | 203-46-56270 | PLATE | | K20001-@ |
| 16 | 01010-51230 | BOLT | | K20001-@ |
| 17 | 01643-31232 | WASHER | | K20001-@ |
| 18 | 202-70-61190 | PIN | | K20001-@ |
| 19 | 203-70-41460 | SPACER¤ 1.0MM | | K20001-@ |
| 20 | 203-46-56270 | PLATE | | K20001-@ |
| 21 | 01010-51230 | BOLT | | K20001-@ |
| 22 | 01643-31232 | WASHER | | K20001-@ |
| 23 | 202-70-11410 | TUBE | | K20001-@ |
| 24 | 07214-60610 | CONNECTOR | | K20001-@ |
| 25 | 07020-00000 | FITTING,GREASE | | K20001-@ |
| 26 | 205-06-K1220 | WORK LAMP ASS'Y | | K20001-@ |
| 205-06-K1890 | BULB¤ 70W | | K20001-@ |
| 27 | 203-06-41130 | BRACKET | | K20001-@ |
| 28 | 01010-51425 | BOLT | | K20001-@ |
| 29 | 01643-31445 | WASHER | | K20001-@ |
| 30 | 203-06-57230 | WIRE | | K20001-@ |
| 31 | 203-06-56570 | BAND | | K20001-@ |
