Ratchet Box is the Atlas Copco service part carried under part number 3121089800. Rotation components on a rock drill take a load impulse on every blow, so they are wear items with a predictable service life.
It appears on the BBC 34DSI Rock Drill and BBC 34W WS Pusher Leg Drill breakdown. 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.
The rest of the assembly is on the same breakdown, and every diagram we publish is indexed on the full diagram library. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 3121089800
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3121089800
- Listed on breakdowns for: BBC 34DSI Rock Drill, BBC 34W WS Pusher Leg Drill
