Valve Case Ass’y is the American Pneumatic Tool service part carried under part number 1280582641, listed as 17924 before the renumbering. It directs the flow that reverses the piston in the breaker. Valve wear changes port timing, and the machine loses blow rate before it loses the ability to run.
It shows up in the parts breakdown for the 140 Paving Breaker – Former Construction and 140 Paving Breaker, and on 1 other machine. The complete machine is the APT 140 Pneumatic Paving Breaker. Compare it to the reference callout on the diagram to be sure it is the position you need.
Everything else on that machine is one page away, and the parts breakdown index indexes every breakdown we publish. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 1280582641
- Previous part number: 17924
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT17924
- Listed on breakdowns for: 140 Paving Breaker – Former Construction, 140 Paving Breaker, 140A Airgo Paving Breaker

