Atlas Copco Hydraulic Breaker HB4100 DP

Warning: This procedure requires trained personnel with PPE!

Cleaned the area around the impact ring?

Removed all remnants of lubricant from the inside of the lower breaker part?

Enter the inside diameter of the lower wear bush

Is the inside diameter of the lower wear bush within permissible limits?

If not, replace the lower wear bush on site

Enter the inside diameter of the upper wear bush

Is the inside diameter of the upper wear bush within permissible limits?

If not, replace the upper wear bush and the impact ring in a workshop

Check both retainer bars whenever replacing working tools

Rework or replace the retainer bars if you find any signs of wear, such as sharp edges, notches or severe erosion

Deburr the retainer bars by careful grinding

Install the retainer bars in their reversed orientation if they cannot be reworked anymore

Replace the retainer bars if both sides cannot be reworked anymore

Check both plugs for the retainer bars

Sign off on the retainer bar check

Warning: Chisel paste is environmentally harmful and must not penetrate the ground or enter the water table or water supplies.

Dispose of chisel paste polluted by dust and of cloths with chisel paste in accordance with the applicable regulations to avoid environmental hazards.

Can the floating ring (E) move freely?

Regular cleaning and greasing of the installed parts and their holders safeguards their operation and improves the availability of the hydraulic breaker.

The inspection frequency depends on how much dust is generated.

Select the frequency of dust generation

Remove the floating ring, counter ring and guide ring (see chapter DustProtector/ Removal)

Is the space in front of the flexible wiper clean of all loose dust?

WARNING: Hot working tool. The tip of the working tool gets very hot during operation. Touching it may lead to burns. Never touch the hot working tool. If you have to carry out any activities, wait for the working tool to cool down first.

Remove the working tool (see the chapter Dismantling the working tool)

Check the impact surface of the working tool for chips and cracks

Check the impact surface of the working tool for deformation

Replace the working tool if you detect chips, cracks or deformations (B and C)

Check the wear condition of the impact ring if you detect deformations (B). Replace impact ring if necessary

Check the shaft of the working tool for wear whenever replacing it, but at least once every 100 operating hours

Replace the working tool if the shaft has worn to the minimum diameter Dmin

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

Sign off on the daily hydraulic breaker maintenance