This is Chicago Pneumatic part number R093900 (also carried as 3310103550) valve, stocked at Crowder Supply as CP-R093900. It directs the flow that reverses the piston in the rock drill. Valve wear changes port timing, and the machine loses blow rate before it loses the ability to run.
It appears on the CP 0069 Rock Drill breakdown. It comes off the CP 0069 Pneumatic Rock Drill. 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 breakdown index. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: R093900
- Also listed as: 3310103550
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R093900
- Listed on breakdowns for: CP 0069 Rock Drill
