Spring is the Atlas Copco service part carried under part number 3121073700. It supplies the return force for its assembly in the rock drill. A spring that has taken a set gives soft or sticky action long before it actually breaks.
The published breakdown lists it on the BBC 34DSI Rock Drill and BBC 16W WS Pusher Leg Drill, and on 1 other machine. 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. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 3121073700
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3121073700
- Listed on breakdowns for: BBC 34DSI Rock Drill, BBC 16W WS Pusher Leg Drill, BBC 34W WS Pusher Leg Drill
