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STARTING A CUT
1) Stand steady and make sure that your feet and hands are at a safe distance from the
working Breaker.
2) Press the machine against the surface of the workpiece before starting.
3) Adjust the breaking distance (A) so that the working Breaker does not get stuck.
4) Do not try to cut too big a bite.
5) Trying to loosen a working Breaker that is stuck will expose the operator to unnecessary
vibrations.
OPERATION
1) Let the machine do the work; do not press too hard. The vibration-absorbing handle
must absolutely not be pressed all the way down to the base.
2) Hydraulic breakers with vibration-absorbing handles: The feed force should be adapted so that the handles are pressed down
"half way". The best vibration damping and breaking effect is achieved at this position.
3) Avoid working in extremely hard materials e.g. granite and reinforcing iron (reinforcement bar), which would cause substantial
vibrations.
4) Any form of idling, operating without working tool or operating without adapted feed force must be avoided.
5) When no feed force is applied, the start and stop device must not be activated.
6) Check regularly that the machine is well lubricated.
WHEN TAKING A BREAK
1) During all breaks you must put the machine away so that there is no risk that it will be unintentionally started.
2) In the event of a longer break or when leaving the workplace: Switch off the hydraulic oil supply and then bleed the machine by
activating the start and stop device.
EUROPEAN HYDRAULIC TOOL MANUFACTURERS ASSOCIATION CODE OF PRACTICE – HYDRAULIC BREAKERS
Before Starting. Refer to manufacturer's operating instructions.
Compatibility.
Hydraulic Breakers are designed to operate at a speci¿ c Flow and Pressure. Equipment produced by EHTMA
members carries a triangular colour coded range identi¿ cation label. Check that both the Tool and Power Unit have
the same identi¿ cation label before operation. It is imperative that Power Units and Tools having
different colour codings are not interconnected as this practice is both inef¿ cient and dangerous.
For reference the EHTMA colour code is as follows:-
Classi¿ cation
Colour Code.
A
Yellow
B
Blue
C
Green
D
Brown
E
Red
F
Black
G
Orange
Z
Grey
If in doubt consult the equipment manufacturer.
Characteristics. Operators not familiar with the use of hydraulic tools should note the following points:-
1) Hydraulic breakers are usually more powerful than the equivalent weight pneumatic tools.
2) The body of the hydraulic breaker and the supply hoses will become quite warm during normal operation.
3) As the breaker has no exhaust it is generally much quieter in operation. This should not be taken as a lack of power.
Steel Selection
It is essential that the correct type and size of steel is chosen if optimum performance is to be achieved, with
particular reference being made to the shank length and across À at dimensions.
Recommendations as follows:-
Material.
Concrete.
Tarmac.
Asphalt.
General Trenchwork.
ALWAYS USE SHARP STEELS - Blunt steels increase vibration and reduce ef¿ ciency.
Operating Instructions
EHTMA - Code Of Practice
Flow l/min
5.5 – 6.5
13.5 – 16.5
18.0 – 22.0
27.0 – 33.0
36.0 – 44.0
45.0 – 55.0
54.0 – 66.0
9.0 – 11.0
Recommended Steel
Pointed or narrow bladed chisels.
Sharp edged wide bladed tools with straight cutting edges.
Sharp edged tools with thin section and curved cutting edges.
Spades and Digger steels.
Max pressure Bar.
180
172
138
138
138
138
138
180
17
GB
A
GB
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