Ordering by number: this is 1280583585 the number that superseded 00864, the American Pneumatic Tool automatic valve. This part controls the working cycle of the rock drill. When its faces wear, the tool sounds different and the blow rate falls off usually the first thing checked on a slow machine.
The published breakdown lists it on the 138 Rock Drill and 155 Rock Drill. Compare it to the reference callout on the diagram to be sure it is the position you need.
Use the parts diagram hub to work through the rest of the assembly, or the APT lineup if you are pricing a replacement machine. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 1280583585
- Previous part number: 00864
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT864
- Listed on breakdowns for: 138 Rock Drill, 155 Rock Drill
