Operating Method For Ripping Operations - Komatsu D475A-5E0 Operation & Maintenance Manual

OPERATION

OPERATING METHOD FOR RIPPING OPERATIONS

BASIC OPERATING METHOD
(1) Start lowering ripper
(2) Point in contact with ground
(3) Insert point to specified depth
TRACK OF RIPPER SHANK
Perform 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 perform 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 efficiency
will be reduced.
If the ripping depth is kept constant, there will be no
unevenness, and this will increase the efficiency of the dozing
operation.
3 - 154
(4) Ripping
(5) Start raising ripper
(6) Shank tilted back
(A)Length of track on ground
OPERATION