Doosan is continuing the introduction of its Tier 4 Final dash-5 crawler excavator lineup, debuting five models ranging from the 14-metricton DX140LC to the 23-metric-ton DX235LCR-5 reduced tail swing machine. One area of concentration for Doosan engineers in the dash-5 upgrade was the front work group, says Shane Reardon, Doosan's excavator product specialist. "It's what really takes the abuse," he says. To beef up this area, Doosan installed what it calls ultra hard wear disks in the bucket pin area that will last around 7,000 hours, Reardon says. "Just unbolt six bolts on each side to replace it," he says. "It doesn't require reboring, or putting in new bushings. And the tighter things are in this area, the better your breakout force."
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机译：斗山将继续推出其Tier 4 Final dash-5履带式挖掘机产品线，首次推出5种型号，从14公吨DX140LC到23公吨DX235LCR-5减尾摆机。斗山挖掘机产品专家Shane Reardon说，dash-5升级中斗山工程师的工作重点之一是前工作组。他说：“这才是真正的虐待。”为了加强这一领域，斗山在斗销区域安装了所谓的超硬磁盘，该磁盘将持续约7,000小时，Reardon说。他说：“只需松开两侧的六个螺栓即可更换它。” “它不需要镗孔或插入新的衬套。该区域内的物体越紧，突围力就越大。”
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