Valve Pin is the Atlas Copco service part carried under part number 3121067500. This part controls the working cycle of the pusher leg. When its faces wear, the tool sounds different and the blow rate falls off usually the first thing checked on a slow machine.
You will find it on the diagram for the BBC 34W WS Pusher Leg Drill and BBC 34DSI Rock Drill, and on 1 other machine. Check it against the reference number on the diagram first; serial breaks change what fits.
If you need the parts around it, the parts diagram hub has the full breakdown library, and the Atlas Copco lineup covers the machines themselves. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: 3121067500
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3121067500
- Listed on breakdowns for: BBC 34W WS Pusher Leg Drill, BBC 34DSI Rock Drill, BBC 16W WS Pusher Leg Drill
