Excavators in use after a period of time, hard to avoid can produce all kinds of fault, to cause the stagnation of engineering, perennial open excavator master also became a half of the maintenance division, encountering an see if solve themselves.
Excavator accessories manufacturers share today: walking hydraulic excavator weakness, how to solve.
many master may also encountered this kind of circumstance: walking, when walking on flat road more normal, but walking a little encounter resistance which show weakness, back a little bit better, when the machine to more difficult also.
We press & other;
Hydraulic system after mechanical part first & throughout;
The order of the item by item check.
Check the walk slow part first.
Due to the machine to work forward and backward movement, walking walking motor and power transmission between driving wheel and more normal, the oil level, oil is normal also, external excavator attachments
without damage, so can rule out the possibility that this part of the fault;
Check the motor, from the first on the right track, the found no clear sound when the crawler and card lag phenomenon, track on the left is normal;
If check hydraulic pump, hydraulic pump work is not normal, so will affect all movements of the machine, while the machine is in operation in addition to walk, other actions are normal, and before and after the hydraulic pump working pressure on the monitor also showed normal;
To continue to check valve, due to the constraints, only check the size of the stroke and the flexibility of stem action, the two are normal;
Swivel joint inspection center, if the central swivel joint internal leakage, high pressure oil in large in the resistance to walk there are part of the oil flow to return pipe, can also lead to walk.
As joint internal leaks must collapse to judgment, therefore place temporary doubt excavator spare parts.
according to the machine fault phenomenon and the inspection status of the above parts, combined with the recent work of the hydraulic cylinder, replacement of seals after comprehensive analysis, we will center swivel joint is the focus of the inside leaking as a check.
Swivel joint and overhaul center, after overhaul, found that most internal seals on the rotating rotor is damaged, fall off, undamaged excavator attachments
has hardened, lost the sealing ability.
Replace the seal second-round exam machine, the machine back to normal.
Hope the above experience can help to you, our company is specialized production bucket excavator shaft, shaft sleeve, and other accessories, can seek advice if necessary small make up 13153810108 【
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