OPERATING THE EQUIPMENT
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6.7 OPERATING THE EQUIPMENT
q
Always lock the optional equipment control pedal when the use of this control is not required, during
travel and when parking the machine. If the control pedal is inadvertently pressed, this may cause seri-
ous accidents.
USING THE HYDRAULIC BREAKER
The breaker is operated by pressing the lower part of the equip-
ment control pedal (B).
q
If it is necessary to adjust the oil flow, have this operation car-
ried out by your Komatsu Distributor.
Precautions for use
q
Before using the breaker, make sure that the spool of the
selection valve (1) is completely rotated clockwise and resting
against its retainer, position (b).
q
When using the breaker, shift the accelerator almost to max.
idling and keep it in this position during work (position corre-
sponding approximately to 80% of the engine maximum power).
q
When the hydraulic breaker is used, the hydraulic oil
deteriorates more quickly and therefore it is necessary to
change the filtering element more frequently. For details, see
paragraph "4.8.2 MAINTENANCE INTERVALS IN CASE OF
USE OF THE HYDRAULIC BREAKER".
q
For further details and other precautions to be taken when han-
dling the hydraulic breaker, carefully read the instruction manual
provided by its manufacturer.
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