| 摘要 |
<p>The disclosed invention relates to a drive control apparatus for a construction machine, comprising a work apparatus operating means, a left drive pedal apparatus, a right drive pedal apparatus and a pilot pump for providing a pilot signal pressure for a spool switch to an option pedal apparatus. The drive control apparatus for a construction machine comprises: a pedal control switch; a valve block that has a left drive pedal signal pressure port, a right drive pedal signal pressure port and a forward drive signal pressure port and distributes a pilot signal pressure generated when the pedal apparatuses are operated; and a selection valve that is electrically converted when the pedal control switch is operated and connects the drive pedal signal pressure ports of at least one of the pedal apparatuses to the forward drive signal pressure port, wherein a forward drive spool is controlled using the left drive pedal apparatus and the right drive pedal apparatus.</p> |
