Analysis of the causes of the problem of the brakes of Kobelco excavators

Braking, I believe that the operators are familiar with this problem. For various reasons, the excavator has a problem with the brakes during the use. The common phenomenon of braking is: open the air conditioner, report the fault code and then drive off. Speed, suddenly ignited. For this reason, this article lists two brakes, to introduce the reasons that may cause the brake problem!

Q: My Kobelco SK75-8 was purchased around May 2010. It has been working for 4,670 hours. It is engaged in earthwork and greening work in the urban area. It is regularly maintained by the agent. There is no fault before the excavator. At 3400 About an hour or so, it takes two or three seconds to drive in a cold car. Now, when the air conditioner is turned on, the car is hot. When the car is hot, the cooling is normal. When the air conditioner is not turned on, the car is not broken. The small throttle is no problem. Affecting the normal operation of the excavator spare parts, the after-sales personnel informed the diesel pump of the first time when the door-to-door inspection was carried out. When the second door-to-door inspection, it was told that there was a problem with the engine. What is the specific reason?

Answer: Hello, mainly because the oil pump wears seriously and the oil supply pressure is insufficient, which causes the engine power to decrease. It is recommended to use the school oil pump.

Master answer: It is obvious that the air-conditioning brake is not good. The engine speed will decrease after the air conditioner is turned on, so this problem is caused by insufficient power.

Q: My Kobelco SK350 Super 8 was purchased in October 2010. The working time is more than 3,000 hours. There is no big problem before the excavator hydraulic spare parts. However, the Z010 alarm is present in the excavator. After the alarm occurs, The excavator starts to brake, lose speed, and needs to replace the filter after working for 200 or 300 hours. What is the reason for the Z010 alarm?

Answer: Hello! Regarding the Z010 alarm on your excavator, and there is a phenomenon of braking, I think: Z010 this alarm code indicates that diesel is not working, the common rail of the diesel oil circuit or the injector has worn out, or both This phenomenon, this alarm does not affect the work, but it will definitely be a problem after a long time. The solution is to use a little diesel, the diesel filter should also choose the original Kobelco. https://jnjmzm.wixsite.com/sdjygcjx