This is Atlas Copco part number 3310112900 trigger, stocked at Crowder Supply as AC-3310112900. This is control gear it meters air to the chipping hammer. A worn control gives creep, hard starting, or a tool that will not shut off cleanly.
Crowder’s breakdowns list this part on the TEX 05P Chipping Hammer and TEX 09PS PSR PSKL PSKL US Pick Hammer. Worth matching the reference number on the diagram against your own machine before you order the same part number can sit in more than one position.
If you need the parts around it, the parts diagram hub has the full breakdown library, and the Atlas Copco lineup covers the machines themselves. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 3310112900
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3310112900
- Listed on breakdowns for: TEX 05P Chipping Hammer, TEX 09PS PSR PSKL PSKL US Pick Hammer

