Pressure Spring is the Atlas Copco service part carried under part number 3121049700. 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.
The published breakdown lists it on the BBC 34W WS Pusher Leg Drill and BBC 34DSI 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 Atlas Copco lineup covers the machines themselves. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 3121049700
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3121049700
- Listed on breakdowns for: BBC 34W WS Pusher Leg Drill, BBC 34DSI Rock Drill, BBC 16W WS Pusher Leg Drill
