RAMMER 255E, Operator'S Manual

Page: 29 / 68

Operation - Page 29 COPYRIGHT © 2020 SANDVIK MINING AND CONSTRUCTION OY
Operation 255E
- When breaking concrete, hard or frozen ground, never strike and pry with the
tool at the same time. The tool may break. Bending may be caused by stones
inside hard or frozen ground. Be careful and stop striking if you find sudden
resistance under the tool.
- When breaking hard or frozen ground, use the benching method. Start with
clearing a small area from the edge. Then continue by breaking material
towards the open area.
- When operating the hammer, make sure that it does not make contact with the
carrier boom or hydraulic lines.
- Do not operate the hammer with the carrier's boom stick or bucket cylinders at
the end of their stroke (either fully extended or retracted). Damage to the carrier
may result.