Komatsu D155AX-8E0, Operation & Maintenance Manual

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REMARK
• If the ripper is applied while the rear of the machine is
raised from the ground, length of track on ground (A)
decreases. Accordingly, the drawbar pull decreases
and the ripping efficiency lowers.
• If the ripping depth is kept constant, unevenness de-
creases and the dozing efficiency increases.
RIP AT EDGE OF CLIFF
• When ripping at the edge of a cliff, tilt back the ripper (1) to
increase reach at ground line (L).
• While depressing the decelerator pedal, travel forward
slowly. When the ripper point contacts the cliff, tilt in the
ripper (2).
RIP BASE OF SLOPE
(When giant ripper is installed)
In ripping of the base of a slope, if the ripper tilt back angle is
small and uncrushed portions are left on the slope, rip diago-
nally.
REMARK
If the multi-shank ripper is installed, rip at right angle to the
slope face.
Cross ripping
• On jobsites with hard rock-bed, if large rocks or boulders
are not broken and dug up by one ripping path, apply the
second ripping path at right angle to the first ripping direc-
tion.
• If the cross ripping is impossible at the edge of a cliff, re-
duce the intervals of the shanks and rip.
MACHINE OPERATIONS AND CONTROLS OPERATION
3-196