Komatsu Utility 76243, Operation & Maintenance Manual

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OPERATION
OPERATION
3-113
OPERATING METHOD FOR RIPPING OPERATIONS 3
BASIC OPERATING METHOD 3
TRACK OF RIPPER SHANK
Carry out the ripping operation as follows, passing through the points shown in the diagram above.
(1) Tilt the ripper back, lower the ripper point to the ground that the place to begin ripping, and raise the rear of the
machine.
(2) To press the decelerator pedal and lower the engine speed, set the speed range to F1, and tilt the ripper to
insert the point to the specified depth.
(3) When the ripper point reaches the specified depth, raise the engine speed to full speed and travel forward.
Tilt the shank and carry out ripping.
If the circuit is relieved even when the shank is tilted, change the shank mounting hole to the hole below and
reduce the ripping depth.
(4) After completing the ripping, travel forward, raise the shank from the bed rock, then travel in reverse.
(5) While traveling in reverse, tilt the ripper back, and when the starting point for the ripping is reached, lower the
ripper.
REMARK
If the ripper is applied with the rear of the machine raised from
the ground, the drawbar pull will be low, so the ripping effi-
ciency will be reduced.
If the ripping depth is kept constant, there will be no uneven-
ness, and this will increase the efficiency of the dozing opera-
tion.
Shank tilted back
Start lowering
ripper
Point in contact
with ground
Insert point to
specified depth
Ripping
Start raising
ripper
Length of
track on ground