Komatsu PC18MR-3, Operation & Maintenance Manual

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PRECAUTIONS TO BE TAKEN WHEN USING OPTIONAL EQUIPMENT
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2. It is absolutely necessary to keep the pressure of the excava-
tor on the breaker constant as the bit penetrates the ground.
Always accompany the breaker as it penetrates and use the
excavator arms to obtain such a pressure as to keep the un-
dercarriage lifted approx. 5 cm from the ground.
Avoid lifting the undercarriage more than necessary.
3. When working on very hard materials it is important to avoid
hitting the same point for more than 30 seconds.
Hit the same point for a few seconds and change position
continuously: in this way the material breaks more easily.
4. To facilitate the sliding of the tool on its seat, check the thrust
direction and always correct the hitting position of the breaker
using the bucket and arm control.
5. Always make sure that the thrust is optimal, in order to avoid
dangerous and useless strokes.
RYA03850
RYA03860
RYA03870
RYA03890 RYA03880