Excavator throttle is not controlled, big and small, what is the problem?

Xu Wa 230, help! The stand-by condition, excavator throttle suddenly suddenly small where is the problem?

Answer:

It is possible that the computer board that controls the throttle motor is out of order

I opened the DOOSON also have similar production problems, ask after-sale, they said it was normal, is the oil problem

Check the accelerator drive plate first If not the accelerator driver board, that is a bad motor throttle positioner, directly change the import, or change the assembly; recommend Guangzhou really, this brand do throttle motor imported ones, the quality is also good;

It's the oil problem. You can go to the website forum of my second-hand construction machinery network