Check Valve Ball is the Atlas Copco service part carried under part number 3371820717. This part controls the working cycle of the breaker. When its faces wear, the tool sounds different and the blow rate falls off usually the first thing checked on a slow machine.
It is called out in the parts diagram for the LH390 390HBP 400E 400E HBP Hydraulic Paving Breaker and LH220 220HBP 230E 230E HPB Hydraulic Paving Breaker, and on 14 other machines. Pull up the diagram and confirm the reference number for your serial before ordering.
The parts diagram library indexes every breakdown we publish, and the Atlas Copco tool range has the tools these parts go into. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: 3371820717
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3371820717
- Listed on breakdowns for: LH390 390HBP 400E 400E HBP Hydraulic Paving Breaker, LH220 220HBP 230E 230E HPB Hydraulic Paving Breaker, LH270 270HBP 280E 280E HBP Hydraulic Paving Breaker, LPD-T & RV Hydraulic Post Driver, LGRD RV 16 RV25 Hydraulic Ground Rod Driver, LPD-HD-T & RV Hydraulic HD Post Driver, +10 more

