| Item | Part No. | Part Name | Qty | Serial No. |
| 20M-970-8371 | ARM ASS'Y,1ST | 10001- | ||
| 1 | 20M-970-8383 | ARM | 10001- | |
| 2 | 20A-70-11120 | BUSHING | 10001- | |
| 3 | 20A-70-12221 | SEAL | 10001- | |
| 4 | 20M-970-8312 | ARM,2ND | 10001- | |
| 4 | 20M-970-8321 | BRACKET,L.H. (WELDED) | 10001- | |
| 4 | 20M-970-8331 | BRACKET,R.H. (WELDED) | 10001- | |
| 5 | 20M-970-8620 | PIN | 10001- | |
| 6 | 04082-00110 | LOCK | 10001- | |
| 7 | 01010-81020 | BOLT | 10001- | |
| 8 | 01643-31032 | WASHER | 10001- | |
| 9 | 20M-970-8781 | PIN | 10001- | |
| 10 | 20P-971-7460 | PIN,LINCH | 10001- | |
| 11 | (20M-970-8201) | BREAKER ASS'Y | 10001- | |
| 12 | 20M-970-7850 | PLATE | 10001- | |
| 13 | 01010-81020 | BOLT | 10001- | |
| 14 | 01643-31032 | WASHER | 10001- | |
| 15 | 20M-970-7223 | BOLT | 10001- | |
| 16 | 01643-32460 | WASHER | 10001- | |
| 17 | 01582-12419 | NUT | 10001- | |
| 18 | 20M-970-7920 | SHIM, 1.0MM | 10001- | |
| 19 | 20M-970-7930 | SHIM, 2.0MM | 10001- | |
| 20 | 20M-970-7940 | SHIM, 3.0MM | 10001- | |
| 21 | 20M-970-8911 | HOSE | 10001- | |
| 22 | 20M-973-1730 | ELBOW | 10001- | |
| 23 | 20M-970-7160 | CHISEL | 10001- | |
| 23 | 20M-970-7550 | PIN,LOCK | 10001- | |
| 23 | 20P-971-7460 | PIN,RING | 10001- | |
| 24 | 20M-70-81322 | PIN | 10001- | |
| 25 | 20N-70-11280 | SPACER, 1.0MM | 10001- | |
| 26 | 04082-00110 | LOCK | 10001- | |
| 27 | 01010-81020 | BOLT | 10001- | |
| 28 | 01643-31032 | WASHER | 10001- |