This is Atlas Copco part number 3315129800 retainer spring, stocked at Crowder Supply as AC-3315129800. It holds the working steel in the rock drill. Retention hardware is a wear and safety item a stretched or cracked retainer lets the steel move, which chews the front head.
Crowder’s breakdowns list this part on the DKR 36 36R Rock Drill. The complete machine is the Atlas Copco DKR36 Pneumatic Rock Drill/Chipping Hammer. Check it against the reference number on the diagram first; serial breaks change what fits.
The rest of the assembly is on the same breakdown, and every diagram we publish is indexed on the parts breakdown index. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 3315129800
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3315129800
- Listed on breakdowns for: DKR 36 36R Rock Drill
