The cause of the hydraulic pump noise is too big excavator in use for quite a long time later, some potential opportunities, the phenomenon of the hydraulic pump too much noise.
This phenomenon is caused by various reasons.
A detailed order to want to make sure that the real reason.
A, and blockage of the suction tubing, seventy percent possibility, great harm.
In excavator with after a long time is easy to appear.
Because the oil suction filter change long time didn't clean the clogging, may also have led to the dirt into the fuel tank, because the oil filter clogging.
Once the harmful consequences, oil absorption, can make local produce vacuum phenomenon, make originally dissolved in the oil empty & rsquo;
And these empty & rsquo;
To produce very big vibration equipment work, make the excavator attachments
Plan is to replace the filter on schedule according to the requirements of the technical manuals, hydraulic tank don't let the dirt to enter, regularly check the suction tubing, after found the problem to solve in time.
Second, the hydraulic pump in the air, possibility of sixty percent, the harm is great, once the oil mixed with air, cavitation and cavitation, inconvenience cause the noise of the hydraulic pump is too large, also can cause equipment damage early.
Response is, check may be free & rsquo;
In part, and exclude the empty of mixed in the oil & rsquo;
And the air in the pipe.
Three, the oil viscosity is too large, fifty percent possibility, harm is great, the oil viscosity is too big, is mainly caused by the excessive use of, and a.
Denier, makes the oil absorption is difficult, can make local produce vacuum phenomenon, make originally dissolved in oil in the air, the air to produce very big vibration equipment work, make the excavator attachments early damage.
Oil viscosity is too big, can make the filter will be failure, early damage of the oil pump and make the excavator.
Response is to check and replace the hydraulic oil in accordance with the requirements in a timely manner.
4, hydraulic tank oil level is too low, oil shortage, possibility of forty percent, the harm is great, the oil level is too low will make can't pump enough oil, will be part of the air inhaled, these empty (
To produce very big vibration equipment work, make the excavator parts early damage.
Oil viscosity is too big, can make the filter of early failure, and make the excavator oil pump damage.
Response is, regularly check the oil level in the hydraulic oil tank is in the normal range.
Five, the oil pump bearing excessive wear, so appear a lot of noise.
Thirty percent possibility, harm, bearing wear mainly appear in the excavator working for a long time.
Not only the noise is very big, and the excavator attachments is weak.
Response is that oil pump overhaul.
Six, hydraulic pump speed is too high, so the only noise.
Possibility twenty percent, harm -
, high speed not only the noise is too big, and can make the excavator hydraulic pump premature damage.
At this time of the excavator each device has a normal work performance.
The plan is, adjusting the rotational speed of pump.
Seven, the pump structure design is not reasonable.
Possibility of percent I, this is a congenital defect.
There is no way.
Eight, poor alignment between pump and motor, coaxial will appear a lot of noise.
Possibility, twenty percent damage.
If not overhaul, following a normal mining the opportunity to work for a long time after just can have this kind of situation, not coaxial accelerates wear should be resolved as soon as possible.
Nine, hydraulic piping vibration, so the noise.
Possibility five percent, harm -
Such as line Angle is too big, will be impacted by the oil also can produce larger noise.
The design of the plan, change the line.
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