| Item | Part No. | Part Name | Qty | Serial No. |
| 20K-60-31111 | MOTOR ASSEMBLY | H55051- | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.Y1641-01A0 TO Y1641-05A0. | ||||
| 20K-60-31830 | CONTROL ASSEMBLY | H55051- | ||
| 1 | 20E-60-K4520 | HOUSING,CONTROL | H55051- | |
| 2 | 20G-60-K2640 | BUSHING, CONTROL | H55051- | |
| 3 | 20K-20-32290 | PISTON, CONTROL | H55051- | |
| 4 | 20G-60-K4920 | BUSHING, ADJUSTING | H55051- | |
| 5 | 20K-60-32310 | COLLAR | H55051- | |
| 6 | 20K-60-32320 | COLLAR | H55051- | |
| 7 | 20G-60-K4290 | SPRING | H55051- | |
| 8 | 20K-60-32330 | SPRING | H55051- | |
| 9 | 20E-60-K4580 | SPRING | H55051- | |
| 10 | 20G-60-K4940 | O-RING | H55051- | |
| 11 | 20G-60-K4950 | SCREW | H55051- | |
| 12 | 20G-60-K4320 | SCREW | H55051- | |
| 13 | 20G-60-K2730 | RING, RETAINING | H55051- | |
| 14 | 20G-60-K1490 | STUD | H55051- | |
| 15 | 20G-60-K4960 | PIN | H55051- | |
| 16 | 20G-60-K1520 | NUT, LOCK | H55051- | |
| 17 | 20G-60-K2750 | PIN | H55051- | |
| 18 | 20G-60-K2590 | PIN | H55051- | |
| 19 | 20G-60-K2760 | DISC, RETAINING | H55051- | |
| 20K-60-31990 | COVER ASSEMBLY | H55051- | ||
| 20 | 20E-60-K6680 | COVER | H55051- | |
| 21 | 20K-60-32340 | SCREW | H55051- | |
| 22 | 20E-60-K6690 | SCREW | H55051- | |
| 23 | 20G-60-K5020 | O-RING | H55051- | |
| 24 | 20G-60-K4320 | SCREW | H55051- | |
| \SEE FIG. Y1641-03A0 |