This is Chicago Pneumatic part number R157129 lower valve case lid, stocked at Crowder Supply as CP-R157129. This part controls the working cycle of the hammer. When its faces wear, the tool sounds different and the blow rate falls off usually the first thing checked on a slow machine.
It shows up in the parts breakdown for the CP 0122SVR 0125SVR Pick Hammer and CP 0122S H22 0122 SL H22 0125 S R25 Pick Hammer, and on 1 other machine. 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 on the full diagram library; complete tools are on the CP tool catalog. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: R157129
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R157129
- Listed on breakdowns for: CP 0122SVR 0125SVR Pick Hammer, CP 0122S H22 0122 SL H22 0125 S R25 Pick Hammer, FL 0025 VR SVR Pick Hammer
