Atlas Copco Hydraulic Breaker HB2500 DP

Warning: This procedure requires trained personnel with PPE!

The gas pressure changes with the gas temperature. Before checking the gas pressure it is necessary to wait until the temperature of the HP-accumulator has levelled to about 20 °C

Enter the current temperature of the HP-accumulator

The gas pressure can be checked by measuring the velocity of the pressure drop in the hydraulic system. Use a pressure gauge (measuring range ≥ 250 bar)

Enter the current pressure reading from the gauge

Place the hydraulic breaker on timber support blocks. The breaker box service opening must be facing upwards

Is the hydraulic breaker properly placed on timber support blocks?

Depressurise the hydraulic system before disconnecting a hydraulic hose (see chapter Depressurising the hydraulic system)

Is the hydraulic system depressurised?

Warning: This check requires trained personnel with PPE!

Enter the machine's hour meter reading

Upload a photo of the dismantled working tool

Is the percussion piston impact surface chipped?

Are there any visible cracks on the percussion piston impact surface?

If the surface is chipped or cracked, do not use the hydraulic breaker again and consult the Atlas Copco Customer Center/ Dealer in your area.

Sign off on the percussion piston impact surface check

Check that the pipe clamps on the carrier are tight

Check the screw connections of the swivel joint covers and tighten as required

Replace damaged swivel joint covers

Warning: This service requires trained personnel with PPE!

Screw connections tightened daily during the first 50 operating hours?

Oil filter cartridges replaced after the first 50 operating hours?

Fill pressure of the HP-accumulator during the first operating week

Sign off on the hydraulic breaker service

Check the filling level of the grease cartridge of the ContiLube® II lubrication system

Monitor the lubricant film on the shaft of the working tool

Manual lubrication of the working tool approx. every 2 hours

Check the pressure in the piston accumulator

Clean and grease the DustProtector system

Sign off on the Hydraulic Breaker Maintenance