This is the Chicago Pneumatic lock off trigger part number R157968, also listed as 3310104438, Crowder SKU CP-R157968. This is control gear it meters air to the clay digger. A worn control gives creep, hard starting, or a tool that will not shut off cleanly.
Crowder’s breakdowns list this part on the FL0022VR FL0022SVR Clay Digger and FL 0025 VR SVR Pick Hammer. Pull up the diagram and confirm the reference number for your serial before ordering.
Use the parts diagram library to work through the rest of the assembly, or the CP tool catalog if you are pricing a replacement machine. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: R157968
- Also listed as: 3310104438
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R157968
- Listed on breakdowns for: FL0022VR FL0022SVR Clay Digger, FL 0025 VR SVR Pick Hammer

