Main Valve, Atlas Copco part number 3310081100, listed at Crowder Supply as AC-3310081100. 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 is called out in the parts diagram for the TEX 09PS PSR PSKL PSKL US Pick Hammer. Pull up the diagram and confirm the reference number for your serial before ordering.
Everything else on that machine is one page away on the parts breakdown index; complete tools are on the Atlas Copco tool range. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 3310081100
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3310081100
- Listed on breakdowns for: TEX 09PS PSR PSKL PSKL US Pick Hammer

