Safety and operating instructions
© Construction Tools GmbH | 3390 5203 01 | 2019-08-06
Original Instructions
37
6.7 Working with safety
equipment
6.7.1 Underwater applications
Using the hydraulic breaker in and under water is possi-
ble if it has been fitted out with special safety equipment.
A special connection kit for underwater use was devel-
oped to avoid damage to the hydraulic breaker. It con-
tains 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. Spe-
cific documentation, has been drawn up, including oper-
ating instructions and a spare parts list, for underwater
usage.
n
Before using the hydraulic breaker in or under water,
consult the Epiroc Customer Center / Dealer in your
area.
6.7.2 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. Preventa-
tive measures to protect the hydraulic breaker have
been collected in separate documentation.
n
Before using the hydraulic breaker for tunnelling
work, consult the Epiroc Customer Center / Dealer in
your area.
6.7.3 Hot applications
Using the hydraulic breaker in a hot environment is pos-
sible if it has been fitted out with special safety equip-
ment.
n
Before using the hydraulic in a hot environment, con-
sult the Epiroc Customer Center / Dealer in your
area.
6.8 AutoControl System
The AutoControl System is a combination of a pressure-
maintaining and reversing valve. The AutoControl Sys-
tem protects the breaker from damage if blank firing oc-
curs. 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 auto-
matically switches over the hydraulic breaker to a shorter
stroke to reduce the single-impact energy.
6.8.1 AutoControl in daily use
The system works automatically without any manual in-
tervention by the carrier operator and automatically ad-
justs 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.
6.8.2 AutoControl in special applications
For special applications, e.g. work with very little percus-
sion, the AutoControl System can be blocked mechani-
cally at a high impact rate with a reduced single-impact
energy.
For further information, please contact the Epiroc Cus-
tomer Center / Dealer in your area.
6.9 Intelligent Protection System
(IPS)
The “Intelligent Protection System (IPS)” automatically
controls the start-up and shut-off behaviour of the hy-
draulic breaker. The hydraulic breaker always starts in
the “AutoStart” mode, i. e. the breaker starts operating
without exerting pressure on the working tool. If “Auto-
Control” triggers a long piston stroke, “IPS” will automati-
cally switch over to the “AutoStop” mode and shuts off
the hydraulic breaker. If the hydraulic breaker continues
to work in the short piston stroke mode after having been
started, “IPS” will stay in the “AutoStart” mode.
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