Take the Kato 512 excavator as an example to explain in detail the reason why the engine speed of the excavator is slow, what is the reason for holding the machine, and what should be done.
1. The engine speed is slow. Check the engine speed sensor on the flywheel housing. The measurement voltage should be between AC1.5-2.5V.
Can not be adjusted directly through the computer, but when you change the throttle lever, you can use the computer to reset, the specific method is too difficult, and the brand is different, the method is also different.
2. There are many reasons for the excavator to hold the machine, such as engine, hydraulic and electrical aspects may cause the failure of holding the car. The easiest way is to see if there is black smoke while holding the car. If so, explain the engine The reasons are larger, such as: air filter, fuel problem, turbocharger, etc. If there is no black smoke, but there is an alarm or fault code display at the same time, it means that the electrical reasons are larger, mainly including TVC valves and PC- The reason for the EPC solenoid valve is the hydraulic one, mainly because the output power of the hydraulic pump is the output power of the Daewoo engine. The fault points are about the PC valve, CO valve, NC valve, LS valve, jet sensor, servo piston, etc. .
