Exhaust Valve Washer, Chicago Pneumatic part number R075777 (also carried as 3310104403), listed at Crowder Supply as CP-R075777. This part controls the working cycle of the rock drill. When its faces wear, the tool sounds different and the blow rate falls off usually the first thing checked on a slow machine.
Crowder’s breakdowns list this part on the CP 0032 Rock Drill and CP 0069 Rock Drill, and on 1 other machine. Worth matching the reference number on the diagram against your own machine before you order the same part number can sit in more than one position.
If you need the parts around it, the full diagram library has the full breakdown library, and the CP tool catalog covers the machines themselves. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: R075777
- Also listed as: 3310104403
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R075777
- Listed on breakdowns for: CP 0032 Rock Drill, CP 0069 Rock Drill, CP 32A Model L Rock Dril

