This is Chicago Pneumatic part number 9245996530 throttle valve spring, stocked at Crowder Supply as CP-9245996530. This is control gear it meters air to the tamper. A worn control gives creep, hard starting, or a tool that will not shut off cleanly.
You will find it on the diagram for the TEX 640 Backfill Tamper. Check it against the reference number on the diagram first; serial breaks change what fits.
The rest of the assembly is on the same breakdown, and every diagram we publish is indexed on the parts diagram hub. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 9245996530
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-9245996530
- Listed on breakdowns for: TEX 640 Backfill Tamper
