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1.发动机工作中突发敲缸声W4—60挖掘机发动机工作始终正常,有一次,在挖掘工作中突发性地产生敲缸声,且声音非常清晰.因声音近四缸处较大,判断四缸有故障的可能性大,熄火将四缸盖拆下(此发动机气缸为分置式),检查发现设置在进气歧管中,靠近四缸一侧的预热塞脱落,随流动空气进入气缸.突发的敲击声是由预热塞芯在气缸中上下窜动与活塞的顶部和缸盖的撞击生产的.经检查气缸壁无损伤,缸盖损伤不严重,活塞有轻微凹、凸点,能继续使用,装复后发动机运转声音正常了.2.转向液压泵失常W4—60挖掘机工作一年后,转向液压泵失去正常性能,给行驶带来困难.因无配件,我们将CB—50泵装上,没有经过大的改装,就可正常工作.只是将过去的转向液压油箱拆去,装上容量较原来大一倍的油箱即可.
1. Sudden knock on the engine work knocking sound W4-60 excavator engine work has been normal, once, in the excavation work suddenly produce knocking sound, and the sound is very clear.As the sound near the cylinder at the larger, Judge the possibility of a four-cylinder failure, stalling the four-cylinder cover removed (the engine cylinder for the split), check found in the intake manifold, near the side of the four-cylinder glow plug off, with the flow of air Into the cylinder. Burst percussion was preheated plug in the cylinder up and down the movement of the piston and the top of the cylinder head impact produced. Check the cylinder wall without damage, cylinder head injury is not serious, the piston slightly concave , Bump, can continue to use, after the installation of the engine running sound is normal .2 steering hydraulic pump malfunction W4-60 excavator one year after the steering hydraulic pump loses its normal performance, to driving difficult because no accessories, We will CB-50 pump installed, without major modifications, you can work properly, but the past diverted to the hydraulic tank, fitted with double the capacity of the original tank can be.