This is the Atlas Copco O-Ring part number 3378512036, Crowder SKU AC-3378512036. It keeps air or oil where it belongs inside the drill. Once it flattens or hardens, the machine loses pressure across the joint and performance falls off gradually rather than all at once.
You will find it on the diagram for the MHC5 Hydraulic Core Drill and LCD 500 & LCD 1500 Hydraulic Core Drill, and on 1 other machine. Check it against the reference number on the diagram first; serial breaks change what fits.
Everything else on that machine is one page away on the full diagram library; complete tools are on the Atlas Copco catalog. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 3378512036
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3378512036
- Listed on breakdowns for: MHC5 Hydraulic Core Drill, LCD 500 & LCD 1500 Hydraulic Core Drill, COR 5/15 Hydraulic Core Drill
