This is the Chicago Pneumatic valve guide part number R122976, which also shows up as 3310104398, Crowder SKU CP-R122976. This part controls the working cycle of the breaker. 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 CP 1290 1290S 1290SVR Paving Breaker and CP 1290SPDR Spike Driver, and on 1 other machine.
Everything else on that machine is one page away on the parts diagram hub; complete tools are on the Chicago Pneumatic lineup. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: R122976
- Also listed as: 3310104398
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R122976
- Listed on breakdowns for: CP 1290 1290S 1290SVR Paving Breaker, CP 1290SPDR Spike Driver, CP 1240 1240S 1240SVR Paving Breaker
