A. impact ring
B. upper wear bush
C. lower wear bush
The upper wear bush and the impact ring must be
replaced in a workshop fitted out for this purpose.
♦
Replace the lower wear bush when its inside
diameter is greater than the maximum permissible
diameter.
♦
When replacing the lower wear bush check the
inside diameter of the upper wear bush using
inside callipers (part number 3363 0949 52).
♦
Replace the upper wear bush and the impact ring
when the inside diameter is greater than the
maximum permissible diameter.
♦
Replace the buffer ring if you find chips and
cracks.
Checking and cleaning the
DustProtector system
An important factor for the DustProtector operation
is that the floating ring which moves in a radial
direction can follow the movements of the breaker
and the working tool.
If dust penetrates it, it may block up the available
installation space and interfere with the DustProtector
system operation.
♦
Regularly check that the floating ring (E) can move
freely.
NOTICE Environmental damage due to chisel paste
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.
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:
Normal dust generation:
once a week (assuming 40–50 hours of operation).
49© 2012 Atlas Copco Construction Tools GmbH | No. 3390 5005 01 | 2012-05-03
Original instructions
MAINTENANCEHB 5800, 5800 DP, 7000, 7000 DP, 10000 DP