Lever, Atlas Copco part number 3121055700, listed at Crowder Supply as AC-3121055700. It governs how air reaches the working end of the rock drill. Wear on the sealing land is the usual cause of a throttle that leaks with the trigger released.
Crowder’s breakdowns list this part 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 full diagram library indexes every breakdown we publish, and the Atlas Copco catalog has the tools these parts go into. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 3121055700
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3121055700
- Listed on breakdowns for: BBC 34DSI Rock Drill, BBC 16W WS Pusher Leg Drill, BBC 34W WS Pusher Leg Drill
