Hammer HB 450, Manual

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14. Stop the hammer quickly. Do not allow the hammer to fall down and make idle strokes when an
object breaks. Frequent idle strokes have a deteriorating effect on the hammer. If the hammer falls through,
thehousing wears out more quickly.
15. When breaking concrete, hard or frozen ground, never strike and prywith the tool at the same time.
The tool may break. Bending may becaused by stones inside hard or frozen ground. Be careful and stop
striking if you find sudden resistance under the tool.
16. Keep the tool at a 90 degree angle at all times. If the object moves or itssurface breaks, correct the
angle immediately. Keep the feed force andtool aligned.
17. Do not use the hammer tools to move rocks. The stone claws are designed for this purposes.
OPERATION