| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 238-70-12111 | BLADE | 20028- | |
| 2 | 238-70-12310 | RAIL,LOWER (WELDED) | 20028- | |
| 3 | 238-70-12320 | RAIL,UPPER (WELDED) | 20028- | |
| 4 | 07048-01010 | PLUG | 20028- | |
| 5 | 238-70-13110 | SUPPORT | 20028- | |
| 6 | 234-870-6220 | BOLT | 20028- | |
| 7 | 234-70-12151 | BLOCK | 20028- | |
| 8 | 01580-13024 | NUT | 20028- | |
| 9 | 232-70-12420 | GUIDE | 20028- | |
| 10 | 232-70-12430 | GUIDE | 20028- | |
| 11 | 01010-51435 | BOLT | 20028- | |
| 12 | 01602-21442 | WASHER | 20028- | |
| 13 | 232-70-52341 | ADJUSTER,L.H. | 20028- | |
| 14 | 238-70-13130 | ADJUSTER,R.H. | 20028- | |
| 15 | 234-70-12331 | PLATE | 20028- | |
| 16 | 01010-51230 | BOLT | 20028- | |
| 17 | 01602-21236 | WASHER | 20028- | |
| 18 | 232-70-52141 | COVER | 20028- | |
| 19 | 238-70-12120 | BRACKET | 20028- | |
| 20 | 238-70-12140 | WASHER | 20028- | |
| 21 | 04064-04518 | RING | 20028- | |
| 22 | 01590-14548 | NUT | 20028- | |
| 23 | 232-70-52380 | WASHER | 20028- | |
| 24 | 04050-18080 | PIN | 20028- | |
| 25 | 01010-51640 | BOLT | 20028- | |
| 26 | 01643-31645 | WASHER | 20028- | |
| 27 | 07048-01510 | PLUG | 20028- | |
| 28 | 232-70-12450 | BOLT | 20028- | |
| 29 | 232-70-12480 | NUT | 20028- | |
| 30 | 01643-31645 | WASHER | 20028- | |
| 31 | 232-70-52191 | BIT,END | 20028- | |
| 32 | 232-70-12460 | BOLT | 20028- | |
| 33 | 232-70-12143 | EDGE | 20028- | |
| 232-70-52910 | EDGE,(STRAIGHT TYPE) | 20028- | ||
| 34 | 238-70-12130 | SHAFT | 20028- |