Ordering by number: this is 3000934102, the Atlas Copco seal washer. Its job is to hold the pressure boundary between two mating faces; a hardened or nicked seal shows up as lost power and a damp housing well before anything else fails.
It appears on the RH 658L/LS/LS-01 Rock Drill and RH 656W Rock Drill breakdown. The complete machine is the RH 658 L Surface Rock Drill. Check it against the reference number on the diagram first; serial breaks change what fits.
Work through the rest of the assembly on the same breakdown, or start over from the parts diagram library. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 3000934102
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3000934102
- Listed on breakdowns for: RH 658L/LS/LS-01 Rock Drill, RH 656W Rock Drill
