| Item | Part No. | Part Name | Qty | Serial No. |
| (233-70-00240) | CIRCLE REVERSE ASS'Y | 20028- | ||
| 1 | 232-70-54430 | WASHER | 20028- | |
| 2 | 232-70-54450 | WASHER | 20028- | |
| 3 | 234-71-13161 | GEAR | 20028- | |
| 4 | 232-70-54420 | SHAFT | 20028- | |
| 5 | 01090-51455 | BOLT | 20028- | |
| 6 | 01582-11411 | NUT | 20028- | |
| 7 | 232-70-54470 | LOCK | 20028- | |
| 8 | 233-71-13354 | GEAR | 20028- | |
| 9 | 234-71-13242 | JOINT | 20028- | |
| 10 | 233-70-25150 | SPACER | 20028- | |
| 11 | 232-70-54330 | HOLDER | 20028- | |
| 12 | 238-70-00190 | SHIM ASS'Y | 20028- | |
| \6\ | SHIM¤ 0.5MM | 20028- | ||
| 13 | 01010-51235 | BOLT | 20028- | |
| 14 | 04081-06012 | LOCK | 20028- | |
| 15 | 232-71-13532 | PLATE | 20028- | |
| 16 | 01010-50820 | BOLT | 20028- | |
| 17 | 01602-20825 | WASHER | 20028- | |
| 18 | 238-70-16141 | WORM | 20028- | |
| 19 | 06002-30310 | BEARING | 20028- | |
| 20 | 238-60-32141 | COUPLING | 20028- | |
| 21 | 04025-00650 | PIN | 20028- | |
| 22 | 232-70-54530 | WASHER | 20028- | |
| 23 | 01602-20929 | WASHER | 20028- | |
| 24 | 02010-70623 | BOLT | 20028- | |
| 25 | 234-71-13290 | PIN | 20028- |