| Item | Part No. | Part Name | Qty | Serial No. |
| 20R-970-0030 | ARM ASS'Y | 6471- | ||
| 1 | \6\ | ARM | 6471- | |
| 2 | 20S-70-71290 | BUSHING | 6471- | |
| 3 | 07145-00040 | SEAL,DUST | 6471- | |
| 4 | 07020-00000 | FITTING,GREASE | 6471- | |
| 5 | 20N-970-7630 | PLATE¤ MARK,BREAKER | 6471- | |
| 6 | 20T-62-73140 | HOSE | 6471- | |
| 7 | 09241-4A130 | PIN | 6471- | |
| 8 | 07020-00000 | FITTING,GREASE | 6471- | |
| 9 | 04082-00212 | LOCK | 6471- | |
| 10 | 01010-51230 | BOLT | 6471- | |
| 11 | 01643-31232 | WASHER | 6471- | |
| 12 | 20R-70-11260 | SPACER¤ 1.0MM | 6471- | |
| 13 | 20S-970-7240 | PIN | 6471- | |
| 14 | 04082-00212 | LOCK | 6471- | |
| 15 | 01010-51230 | BOLT | 6471- | |
| 16 | 01643-31232 | WASHER | 6471- | |
| 17 | 20R-70-11270 | SPACER¤ 1.0MM | 6471- | |
| 18 | 20S-970-7230 | COLLAR | 6471- | |
| 19 | 20S-970-6970 | BOLT | 7095- | |
| 198-30-13370 | BOLT | 6471-7094 | ||
| 20 | 113-06-23220 | COVER | 6471- | |
| 21 | 01643-32780 | WASHER | 6471- | |
| 22 | 01580-12722 | NUT | 6471- | |
| 23 | 20S-970-7330 | SHIM¤ 0.5MM | 6471- | |
| 24 | (20S-970-0340) | BREAKER ASS'Y | 6471- | |
| 25 | 20S-970-7280 | DUMMY CHISEL | 6471- | |
| 26 | 07145-00035 | SEAL,DUST | 6471- | |
| 27 | 07020-00000 | FITTING,GREASE | 6471- |