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necessary increase in vibration levels. Do not hold the tool with your free hand, this increases the exposure to vibrations. Maintain
a light, yet fi rm grip on the tool and mind the reaction forces from operating the tool. The risk of vibration is higher the higher is
the force of your grip on the tool. Hold the additional handles in a central position and avoid pressure on the handle until the tool
stops. In the case of crushers, remove smaller pieces of concrete to prevent the tool from jamming. In the case of crushers, move
the tool every few seconds. The tool must be stopped during moving because vibrations reach a high level if the inserted tool is
not supported by the workpiece.
Additional safety instructions for pneumatic tools
The pressurised air can cause serious injuries: - always cut off the air supply, empty the hose of air pressure and disconnect the
tool from the air supply when: the tool is not in use, before changing accessories or when carrying out repairs; - never direct air
at yourself or anyone else. Hitting with the hose can cause serious injuries. Always check for damaged or loose hoses and con-
nectors. Direct cold air away from hands. Whenever universal screwed connections (dog connections) are used, safety pins and
safety connectors must be used to prevent damage to the connections between the hoses and between the hose and the tool. Do
not exceed the maximum air pressure specifi ed for the tool. Never carry the tool holding it by the hose.
OPERATING CONDITIONS
Make sure that the compressed air source generates the correct working pressure and provides the required air fl ow. If the sup-
ply air pressure is too high, a pressure regulator with a safety valve must be used. The pneumatic tool must be fed through the
fi lter and lubricator system. This will ensure that the air is both clean and moistened with oil. Check the condition of the fi lter and
lubricator before each use and clean the fi lter if necessary or make up for the oil shortage in the lubricator. This will ensure the
correct operation of the tool and extend its service life. In the case of heavy loads, a recoil force may be generated towards the
tool operator. It is necessary to adopt such a posture during work to be able to counteract these forces eff ectively. If you move the
tool unexpectedly or break the inserted tool, you may be injured. When using additional holders or support racks, make sure that
the tool is correctly and securely attached. Keep body parts and clothing away from the working tool. There is a risk of being pulled
in or caught. Always make sure that all keys and tools used for adjusting and attaching other tools to the pneumatic scaler are
removed before starting work. During operation, dust can be generated which, depending on the workpiece, can be harmful to the
operator. During cutting or demolition work, workpiece elements can be ejected. Do not hold the inserted tool with an unprotected
hand. This can cause injuries due to vibration.
USING THE TOOL
Before each use of the tool, make sure that no parts of the pneumatic system are damaged. If you notice damage, immediately
replace the components with new, undamaged ones. Dry the condensed moisture inside the tool, compressor and hose before
each use of the pneumatic system.
Connecting the tool to the pneumatic system (III)
The fi gure shows the recommended manner of connecting the tool to the pneumatic system. This will ensure the most effi cient
use of the tool and also prolong the tool's service life.
Apply a few drops of SAE 10 viscous oil into the air inlet. Screw a suitable nozzle to the air inlet thread fi rmly and securely to
connect the air supply hose (II). Then connect the needle head to the tool body by inserting (IV) the locking pin into the piston
stroke adjustment hole until the head can be turned so that one of the three piston stroke levels can be selected. The locking pin
should lock into one of the three piston stroke levels (V). The adjustable piston stroke allows the scaler force to be adjusted to
achieve the desired eff ect. The fi rst level (closest to the tool body) is the setting with the highest impact force, while positioning
each subsequent level towards the needle head makes the impact force weaker.
Only use accessories which are suitable for use with impact tools when working with pneumatic tools. Wherever possi-
ble, adjust the pressure (torque). Connect the tool to the pneumatic system using the hose with the internal diameter listed in the
technical data table. Make sure the hose has a durability of at least 1.38 MPa. Start the tool for a few seconds, making sure that
there are no strange sounds or vibrations.
Working with the scaler
The tool is activated by pressing and holding the trigger. The tool is stopped by releasing the trigger. The trigger is not lockable
in any position.
Always hold the tool with both hands while working. When working, apply only such pressure on the tool which is required for
the given task. Do not exert excessive pressure on the workpiece, this can lead to needle breaks and serious injuries. Attention
should also be paid to any fragments that may become detached during work. They must not be allowed to cause hazards in the
workplace.
O R I G I N A L
I N S T R U C T I O N S
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