Spring carries Chicago Pneumatic part number R145863 (also carried as 3310190077) and is stocked here under CP-R145863. It loads its mating part against the seat. When free length drops, the symptom is inconsistent operation the tool works, but not crisply.
It is called out in the parts diagram for the CP 1210 S SVR Paving Breaker and CP 1230 1230S 1230SVR Paving Breaker. 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. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: R145863
- Also listed as: 3310190077
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R145863
- Listed on breakdowns for: CP 1210 S SVR Paving Breaker, CP 1230 1230S 1230SVR Paving Breaker

