This is the Chicago Pneumatic throttle valve part number R086329, which also shows up as 3310104532, Crowder SKU CP-R086329. It governs how air reaches the working end of the rock drill. Wear on the sealing land is the usual cause of a throttle that leaks with the trigger released.
Crowder’s breakdowns list this part on the CP 9 9S Rock Drill and CP 9A 9F Rock Drill, and on 4 other machines. Compare it to the reference callout on the diagram to be sure it is the position you need.
The rest of the assembly is on the same breakdown, and every diagram we publish is indexed on the full diagram library. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: R086329
- Also listed as: 3310104532
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R086329
- Listed on breakdowns for: CP 9 9S Rock Drill, CP 9A 9F Rock Drill, CP 9BS Rock Drill, CP 0009 A F E CS ES AC Rock Drill, CP 0014 RR RRBS Rock Drill, CP 9RR 9RRS Rock Drill
