Ordering by number: this is 3121016600, the Atlas Copco main valve. Cycle timing runs through this component. Because it shuttles on every blow, it accumulates cycles faster than almost anything else in the pusher leg.
Crowder’s breakdowns list this part on the BBC 16W WS Pusher Leg Drill. It comes off the Atlas Copco BBC 16W Pneumatic Rock Drill. Pull up the diagram and confirm the reference number for your serial before ordering.
Everything else on that machine is one page away, and the full diagram library indexes every breakdown we publish. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 3121016600
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3121016600
- Listed on breakdowns for: BBC 16W WS Pusher Leg Drill
