| 品牌KOMATSU/小松 | 型号PC400-7 |
| 配件适用对象挖掘机 | 规格PC400-7 |
重庆挖掘机pc400-7液压泵ls阀708-2h-03610 小松挖掘机ls阀
日本原装进口品质 仓库现货 发货快 品质保证
张然 微信同号 13563767560
挖掘机维修厂-重庆小松挖掘机热车不好启动,启动时冒黑烟
掘机热车不好启动,启动时冒黑烟的分析:
1.先导系统泄露严重,包括先导泵.在启动时,先导压力不能迅速升高到30公斤以上.神钢-8型车有一个旁通卸荷阀,开启压力在30公斤,低于30公斤处于关闭状态,所以启动过程中会瞬间带高压,带压时间长就会启动困难,而且是恶性循环.
2.调节器由于轻微磨损,灵敏度降低,启动时从流量变为***小流量,所需时间增长.
启动时背压高流量大,所以启动非常困难.你断开调节器电磁阀插头,或者断开p1p2旁通截止电磁阀插头,都能启动正常了
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