| Item | Part No. | Part Name | Qty | Serial No. |
| 22-580160-00 | DRUM ASS'Y,A AND B TYPE BOOM | (1001)- | ||
| 1 | 21-803852-01 | DRUM,FRONT¤ SPLIT | (1001)- | |
| 2 | 21-526460-01 | WEDGE | (1001)- | |
| 22-580161-00 | DRUM ASS'Y,B AND C TYPE BOOM | (1143)- | ||
| 3 | 22-540183-01 | DRUM,FRONT¤ SPLIT | (1143)- | |
| 4 | 21-526462-01 | WEDGE | (1143)- | |
| 22-580162-00 | GUARD ASS'Y,ROPE | (.)- | ||
| 5 | 22-450763-21 | GUARD | (.)- | |
| 6 | 22-590074-01 | SCREW | (.)- | |
| 7 | 02206-01009 | NUT | (.)- | |
| 8 | 01602-01648 | WASHER | (.)- | |
| 9 | 21-293033-01 | GUARD,ROPE GUARD | (.)- | |
| 10 | 02030-00625 | BOLT | (.)- | |
| 11 | 02215-00608 | NUT | (.)- | |
| 12 | 01602-00929 | WASHER | (.)- |