| Item | Part No. | Part Name | Qty | Serial No. |
| 20T-870-0021 | ARM ASS'Y | 30001- | ||
| 1 | \6\ | ARM,FIRST | 30001- | |
| 2 | 20T-70-81250 | BUSHING | 30001- | |
| 3 | 07145-00050 | SEAL | 30001- | |
| 4 | 07020-00000 | FITTING | 30001- | |
| 5 | 201-70-64270 | BUSHING | 30001- | |
| 6 | 07145-00050 | SEAL | 30001- | |
| 7 | 07020-00000 | FITTING | 30001- | |
| 8 | 20T-870-1611 | ARM,SECOND | 30001- | |
| 9 | 20B-910-3210 | PIN | 30001- | |
| 10 | 20R-70-11250 | PLATE | 30001- | |
| 11 | 01010-81230 | BOLT | 30001- | |
| 12 | 01643-31232 | WASHER | 30001- | |
| 13 | 20T-70-81750 | SPACER¤ 0.5MM | 31451- | |
| 424-46-12540 | SHIM¤ 0.5MM | 30001-31450 | ||
| 14 | 20T-870-1150 | PIN | 30001- | |
| 15 | 20T-870-1190 | PIN,RING | 30001- | |
| 16 | 201-62-74790 | HOSE¤ 1100MM | 30001- | |
| 17 | 08037-05022 | GROMMET | 30001- | |
| 18 | 203-62-58650 | COVER | 30001- | |
| 19 | 08034-00519 | BAND | 30001- | |
| 20 | 20S-70-71571 | PIN | 30001- | |
| 21 | 04082-00212 | LOCK | 30001- | |
| 22 | 01010-81230 | BOLT | 30001- | |
| 23 | 01643-31232 | WASHER | 30001- | |
| 24 | 20T-70-81780 | SPACER¤ 1.0MM | 31451- | |
| 20T-70-19130 | SPACER¤ 1.0MM | 30001-31450 | ||
| 25 | 20S-70-71571 | PIN | 30001- | |
| 26 | 04082-00212 | LOCK | 30001- | |
| 27 | 01010-81230 | BOLT | 30001- | |
| 28 | 01643-31232 | WASHER | 30001- | |
| 29 | 20T-70-81710 | SPACER¤ 1.0MM | 31451- | |
| 20T-70-19130 | SPACER¤ 1.0MM | 30001-31450 | ||
| 30 | 20T-970-7231 | COLLAR | 30001- | |
| 31 | 20T-970-7241 | COLLAR | 30001- | |
| 32 | 20T-970-7480 | BOLT | 30001- | |
| 33 | 01643-33080 | WASHER | 30001- | |
| 34 | 01580-13024 | NUT | 30001- | |
| 35 | 20T-970-7330 | SHIM¤ 0.5MM | 30001- | |
| 36 | 20T-970-7340 | COVER | 30001- | |
| 37 | (20T-63-X2425) | CYLINDER GROUP,BUCKET | 30001- |