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SOM576701_14jan
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6.0 Operation – [cont’d]
Fig. 6-2 Align the Breaker 90 to the Work Surface
With a “firm preload” applied on the breaker tool,
the breaker is ready to operate.
Actuate the control that fires the breaker.
Follow the progress of the breaker through the
material. Use the boom, arm and bucket controls
to provide a constant feed force on the tool as it
penetrates the material. Strong vibrations will
generate back to the carrier if sufficient force is
not maintained.
Stop the breaker immediately when the tool
breaks through.
Fig 6-3 Begin at Outer Edge and Work Inward
Start breaking near the outer edge and advance
inward.
6.2.1 Cycle Time
Breaking in extremely hard materials requires care to
prevent overheating the tool. Prolong hammering in
one spot must be avoided. If the material does not
break within 15 seconds of hammering, stop and
reposition the tool nearer the edge. Refer to Figure 6-
3.
Fig. 6-4 Do Not Overheat Tool
6.3 Operating Mistakes to Avoid
IMPORTANT
Equipment damage may result if proper
procedures are not followed. Carefully read
through this section as it describes actions to be
avoided when using the breaker.
6.3.1 Listen for Change in Pitch or Frequency
The operator must remain attentive to the sound
emitted by the breaker.
Fig 6-5 Do Not Blank Fire
NO!
OK
90°
9
0
°
OK
NO!
90°
OK
NO!
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