Spring is the Atlas Copco service part carried under part number 3121072500. It supplies the return force for its assembly in the pusher leg. A spring that has taken a set gives soft or sticky action long before it actually breaks.
Crowder’s breakdowns list this part on the ALF 72D 72D-1 Pusher Leg and ALF 67/80 67/80D Pusher Leg, and on 3 other machines. Check it against the reference number on the diagram first; serial breaks change what fits.
Use the parts breakdown index to work through the rest of the assembly, or the Atlas Copco tool range if you are pricing a replacement machine. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 3121072500
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3121072500
- Listed on breakdowns for: ALF 72D 72D-1 Pusher Leg, ALF 67/80 67/80D Pusher Leg, BBC 34DSI Rock Drill, BBC 16W WS Pusher Leg Drill, BBC 34W WS Pusher Leg Drill

