This is American Pneumatic Tool part number 1280583053, which replaced the older number 02912 front valve chest, stocked at Crowder Supply as APT2912. It directs the flow that reverses the piston in the rock drill. Valve wear changes port timing, and the machine loses blow rate before it loses the ability to run.
It appears on the 115 Rock Drill breakdown. The tool itself is the APT 115 Pneumatic Rock Drill. Check it against the reference number on the diagram first; serial breaks change what fits.
Work through the rest of the assembly on the same breakdown, or start over from the parts diagram library. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 1280583053
- Previous part number: 02912
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT2912
- Listed on breakdowns for: 115 Rock Drill
