For rough dozing, the automatic blade control monitors blade load and adjusts blade elevation to minimize track slip. As work progresses closer to the target finish grade, the automatic blade control adjusts accordingly to provide finish grade performance.
“When the machine is dozing, [the system] realizes if there is too much load and the blade and the pressure is getting to the point where the tracks will break away and slip. It’s not going to allow that to happen,” says Robson. “It’s going to try to maintain forward movement without tearing up the ground, wearing out the undercarriage, etc.
“From the first to the last pass, it will grade in automatic and assist the operator to cut all the way down to the target design surface,” he continues, “where an aftermarket system will only cut the final few tenths out to design surface.”
Based on test comparisons, Komatsu claims up to a 13% improvement in rough dozing efficiency with the D61i-23 over a conventional D61-23 with add-on machine control.