Working with safety
equipment
Underwater applications
Using the hydraulic breaker in and under water is
possible if it has been fitted out with special safety
equipment.
A special connection kit for underwater use was
developed to avoid damage to the hydraulic
breaker. It contains all the necessary components
including the safety facilities to keep the interior of
the lower breaker part free from water by using
external compressed air.
Specific documentation, has been drawn up,
including operating instructions and a spare parts
list, for underwater usage.
◆
Before using the hydraulic breaker in or under
water, consult the Atlas Copco Customer
Center/Dealer in your area.
Usage in tunnels
Using the hydraulic breaker for tunnelling with
overhead operations and horizontal applications or
for river bed excavation/slope construction is
possible if it has been fitted out with special safety
equipment.
Dust and stone particles and/or water penetrating
the hydraulic breaker can lead to operating failures
and can even cause the hydraulic breaker to
malfunction completely.
Preventative measures to protect the hydraulic
breaker have been collected in separate
documentation.
◆
Before using the hydraulic breaker for tunnelling
work, consult the Atlas Copco Customer
Center/Dealer in your area.
Hot applications
Using the hydraulic breaker in a hot environment is
possible if it has been fitted out with special safety
equipment.
◆
Before using the hydraulic in a hot environment,
consult the Atlas Copco Customer Center/
Dealer in your area.
AutoControl System
The AutoControl System is a combination of a
pressure-maintaining and reversing valve.
The AutoControl System protects the breaker from
damage if blank firing occurs.
The pressure-maintaining valve makes sure that
the hydraulic breaker switches correctly in all
operating situations. It enables up to 30 % energy
to be recovered when working on hard rock.
The reversing valve automatically switches over
the hydraulic breaker to a shorter stroke to reduce
the single-impact energy.
AutoControl in daily use
The system works automatically without any
manual intervention by the carrier operator and
automatically adjusts to the conditions of use.
If the situation requires a high single blow energy,
the system produces a full stroke and a high single
blow energy.
AutoControl in special applications
For special applications, e.g. work with very little
percussion, the AutoControl System can be
blocked mechanically at a high impact rate with a
reduced single-impact energy.
For further information, please contact the Atlas
Copco Customer Center/Dealer in your area.
Safety and operating instructions HB 2000, 2000 DP, 2500, 2500 DP
38 © Construction Tools GmbH | 3390 5090 01 | 2016-05-23
Original instructions
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