| 品牌KOMATSU/小松 | 型号pc130-7 |
| 配件适用对象挖掘机 | 规格pc130-7 |
pc130-7发动机总成 二手小松挖掘机发动机 进口直接价格低
发动机总成 小松公司翻新技术
专业小松挖掘机配件18年 进口 原装进口
张然 微信同号 13563767560
小松pc300挖掘机工作装置不动作解决方案
在发动机运转正常的情况下,造成小松pc300挖掘机工作装置不动作的成因有以下几点:1 液压油箱无油;2 过滤器严重堵塞;3 液压系统管路破裂;4 控制泵主溢流阀被卡死在溢流位置;5 主泵轴断裂;6 控制泵轴断裂或内泄严重.
小松pc300挖掘机工作装置不动作故障排除步骤:1 检查油箱内润滑油状况,若油面不在规定的油面位置,则应加油至规定值.2 检查过滤器是否严重堵塞,若堵塞严重,则应更换过滤器.3 查看液压系统管路及接头是否有破损.若有破损,则应更换相应的油管和接头.4 卸下主泵测压塞,开调速器马达接线器,将调速杆拨至不喷油位置,起动马达,观察主泵测压塞是否有油流出.若没有油流出,则是主泵轴断裂,或减振器有故障,应对主泵及减振器进行修理.5 按步骤1)—4)观察主泵测压塞是否有油流出.若有油流出,则分别截断图11-59控制回路的1—6回路,让发动机高速空转,测定控制泵的溢流压力是否在3—3.8mpa之内.若压力在3~3.8mpa之内,则说明相应的控制液压元件有故障,应对其检修或更换;若压力不在3~3.8mpa之内,则应检查从控制泵过滤器出口处排泄的油中是否有铁粉及杂物,若有铁粉及杂物,则检修控制泵,并检查控制泵两啮合齿轮之间的磨损情况及间隙、泵的端面间隙、齿轮与壳体的径向间隙、泵齿轮轴是否断裂等;若没有铁粉及杂物,则是控制泵主溢流阀的溢流压力过低,应调整溢流压力到3~3.8mpa内.若压力调整不到规定范围,则应对控制泵溢流阀进行清洗、研磨修理或更换
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