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【 Excavator parts 】 Digging bucket rod moves slowly, so to solve

by:HMB     2021-01-22
Excavators in use after a period of time, a lot of excavator master excavators are met when using excavator bucket rod extremely slow fault, when the fault occurs drivers master how to troubleshoot fault, find out the cause of the problem, it is concluded that the solution? Excavator parts manufacturer for your action! Excavator to work smoothly, every movement must connect, can't appear any card, slow, weak, and so on and so forth, especially when making composite action even more demanding. Excavator accessories manufacturers, small make up today and everyone to discuss excavator bucket rod composite action how to solve the fault. Troubleshooting: 1, first of all drivers a single action all have no problem, then oil first rule out the problem, but also normal walking without running deviation, and so on and so forth, then the two pump output flow must also normal. 2, then according to the main description of the bucket rod and the movable arm do composite action, arm speed slow down obviously, you probably confluence valve, but found no obvious wear stem after disassembly problem, clean up after back to commissioning failure phenomenon still exists. 3, according to the experience of maintenance of the master, rotary priority valve jammed in the throttled position, there is a big possibility cause failure occurs. For a single arm gesture, the valve core in the throttled position can work properly to the bucket rod oil supply, all arm movements did not see abnormalities. But if you want to move the arm and arm work at the same time, the rotary priority variable throttle valve should work in the largest open position, while the machine can work in the throttled position, so would the bucket rod moves slowly. According to the judgment, maintenance teacher remove the rotary priority variable throttle valve, clean and reinstall after commissioning when the fault has disappeared again. Note: although the bucket rod slow problem has been solved, but the teacher didn't relax vigilance, maintenance in further examination found that when the machine some black oil, oil filter is dirty. This is also a very hidden fault reason, so must be cleaning filter and the replacement of the oil tank, the hydraulic oil treatment. Here arm moves slowly to thoroughly solve the problem. Excavator accessories manufacturer small make up in this also caution to each owner, the daily maintenance of excavator don't procrastinate! Long-term accumulation of hidden trouble to when it might cause greater failure occurs, do more harm than good.

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