Advance
Select the distance marked with "V“ such that the
fragment is released within 30 seconds. If this is
not the case decrease the advance or apply the
tool again to another location.
Excessive advances do not improve the working
result. The working tool will then penetrate the
material without a satisfactory breaking result. The
tip of the working tool then becomes hot and loses
its hardness. Work step by step to achieve the
optimum work result.
◆
Start near the edge of the material to be broken
and work your way back to its centre.
Impact time
◆
Never apply the hydraulic breaker to the same
point for more than 30 seconds.
◆
If the material fails to break, apply the tool to a
new location.
High ambient temperature
◆
Only use hydraulic oils of sufficient viscosity.
In summer and in tropical climates, the
minimum requirement is a hydraulic oil of type
HLP 68.
Low ambient temperature
Ambient temperature below 0 °C:
NOTICE The working tool may break
There is an increased risk of the working tool
breaking if it has not been stored in frostfree
conditions.
►
Store the working tool in a frostfree
environment for one day before installing it.
or
►
Heat up the working tool for several hours, e.g.
with a heating blanket, until it has warmed up
thoroughly.
Additional instructions when working at an
ambient temperature of below -20 °C:
You must heat up the hydraulic attachment and the
carrier when working at ambient temperatures of
below -20 °C.
Preferably park the carrier and the hydraulic
attachment in a heated, sheltered space while not
in use.
NOTICE Hydraulic oil too cold
Operating the hydraulic breaker while the hydraulic
oil is still cold will damage the seals of the
hydraulic breaker and the diaphragm in the HP-
accumulator.
►
Do not operate the hydraulic breaker until the
temperature of the hydraulic oil is at least 0 °C.
◆
Start the carrier as instructed by the carrier
manufacturer.
◆
Let the carrier heat up until the operating
temperature prescribed by the carrier
manufacturer has been reached.
NOTICE Damage to hydraulic parts
If a hydraulic breaker which has not reached
operating temperature is operated with hot
hydraulic oil this will lead to tensions and the
hydraulic breaker will stop working.
►
Do not fill the hydraulic system with hot
hydraulic oil.
The temperature of the hydraulic oil of the carrier
must be at least 0 °C.
◆
Start the hydraulic attachment when the
temperature has risen to 0 °C.
◆
During operations, leave the carrier engine and
pumps running even during breaks.
HB 2000, 2000 DP, 2500, 2500 DP Safety and operating instructions
© Construction Tools GmbH | 3390 5090 01 | 2016-05-23
Original instructions
35
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