| Item | Part No. | Part Name | Qty | Serial No. |
| 20U-970-0031 | ARM ASS'Y | | 14993- |
| 20U-970-0030 | ARM ASS'Y | | 13232-14992 |
| 1 | \6\ | ARM | | 13232- |
| 2 | 20T-70-81140 | BUSHING | | 14993- |
| 20T-70-71140 | BUSHING | | 13232-14992 |
| 3 | 07020-00675 | FITTING,GREASE | | 13232- |
| 4 | 07145-00050 | SEAL,DUST | | 13232- |
| 5 | 20N-970-7630 | PLATE¤ MARK,BREAKER | | 13232- |
| 6 | 20S-970-7750 | PLATE¤ CAUTION,BREAKER WORKING | | 13232- |
| 7 | 20S-970-7760 | PLATE¤ CAUTION,HYDRAULIC OIL | | 13232- |
| 8 | 20T-70-71571 | PIN | | 13232- |
| 9 | 04082-00212 | LOCK | | 13232- |
| 10 | 01010-81230 | BOLT | | 13232- |
| 11 | 01643-31232 | WASHER | | 13232- |
| 12 | 21W-70-21440 | SHIM¤ 3.0MM | | 13232- |
| 13 | 20T-70-81750 | SPACER¤ 0.5MM | | 16432- |
| 424-46-12540 | SHIM¤ 0.5MM | | 14993-16431 |
| 14 | 20T-70-81730 | SPACER¤ 1.0MM | | 16432- |
| 201-70-23140 | SPACER¤ 1.0MM | | 14993-16431 |
| 15 | 20U-970-2130 | PIN | | 13232- |
| 16 | 04082-00212 | LOCK | | 13232- |
| 17 | 01010-81230 | BOLT | | 13232- |
| 18 | 01643-31232 | WASHER | | 13232- |
| 19 | 20U-70-21780 | SHIM¤ 2.5MM | | 13232- |
| 20 | 20T-70-81710 | SPACER¤ 1.0MM | | 16432- |
| 20T-70-19130 | SPACER¤ 1.0MM | | 14993-16431 |
| 21 | 07020-00900 | FITTING,GREASE | | 13232- |
| 22 | 20T-970-7230 | COLLAR | | 13232- |
| 23 | 20T-970-7240 | COLLAR | | 13232- |
| 24 | 20T-970-7480 | BOLT | | 13232- |
| 25 | 20T-970-7390 | WASHER | | 13232- |
| 26 | 01580-13024 | NUT | | 13232- |
| 27 | 20T-970-7330 | SHIM¤ 0.5MM | | 13232- |
| 28 | 20T-970-7340 | COVER | | 13232- |
| 29 | 20T-970-7350 | COVER | | 13232- |
| 30 | (20U-970-0050) | BREAKER ASS'Y,(SEE FIG.T1200-03A8) | | 13682- |
| (20T-970-0040) | BREAKER ASS'Y,(SEE FIG.T1200-03A8) | | 13232-13681 |
| 31 | 20T-970-7280 | DUMMY CHISEL | | 13232- |
| 32 | 07145-00045 | SEAL,DUST | | 13232- |
| 33 | 07020-00675 | FITTING,GREASE | | 13232- |
