Volvo EC60E, Operator'S Manual, Page: 208 / 342

Press the chisel firmly onto the surface at a right
angle as shown.
When striking, press the chisel firmly onto the
surface, and lift the frame about 5cm. Never raise
the machine unnecessarily high.
If the surface is repeatedly struck but it is not broken
within 1 minute, move the hammer to break from the
end portion.
The striking direction of chisel and the direction of
hammer body are slightly deviated. Therefore,
adjust the bucket cylinder so that the direction of
body and chisel is always the same.
Press the chisel firmly against the surface so idle
striking is avoided.
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Operating techniques
Hammer 207