◆
Replace the working tool if the shaft has worn
to the minimum diameter D
min
stated below.
Type D
min
HB 2000, HB 2000 DP 140 mm
HB 2500, HB 2500 DP 150 mm
Checking the retainer bars
◆
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.
The plugs must not be damaged.
Checking the percussion
piston impact surface
◆
Check the percussion piston impact surface
whenever replacing the working tool, but at
least once every 100 operating hours to make
sure it is not chipped and has no visible cracks.
◆
Use an electric torch to illuminate the surface of
the dismantled working tool.
◆
Do not use the hydraulic breaker again if you
have found the surface to be chipped or
cracked.
◆
Consult the Atlas Copco Customer Center/
Dealer in your area.
Safety and operating instructions HB 2000, 2000 DP, 2500, 2500 DP
48 © Construction Tools GmbH | 3390 5090 01 | 2016-05-23
Original instructions
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