How to use the excavator throttle motor correctly?

The electrical signal of the gear position of the accelerator knob is sent to the controller (computer board), and the controller gives the corresponding current to the throttle motor according to the setting information stored in the gear position, and the throttle motor controls the fuel intake of the engine according to the magnitude of the current. and speed.

What should I do if the excavator valve cannot be refueled?

The throttle motor, or the throttle drive module of the computer board is burned out, the throttle motor is easy to replace, and you can install a new one by yourself. The premise is that the cause of the fault must be determined. The excavator throttle cannot be turned off. When testing the fault, you can first increase the throttle to ten If the throttle motor is still at the highest speed position, then measure the yellow wire on the plug of the throttle motor. The normal voltage is zero when the key is turned off. If the key is turned off If the voltage is maintained at 24V, it may be a damage such as a delay relay. If the voltage of the key is turned off and the voltage can return to zero volts or the ignition cannot be turned off, it proves that the template of the throttle assembly has been damaged. If it runs to idle speed or other positions, it is usually to adjust the stroke or replace the throttle cable.

How to deal with the unstable power of the excavator throttle?

1. It is not the problem of the throttle motor, but the problem of unstable feedback signal of the throttle motor. Check if there is a fault code e316, if there is, the throttle lever is damaged, replace it with a new one. Disassemble the tie rod to see if the piston rod inside has long-term wear marks, repair it with a lathe, and replace the spring. The former is more expensive, but rest assured, the latter is cheap but not necessarily good.

2. If the fault code is not e316, but e306, it is the problem of the throttle knob, measure the resistance value of the knob, slowly increase the throttle from the small throttle to the large throttle by hand, and see if the resistance value suddenly goes to ∞ The place swings, if there is, replace it with a new one.

3. Is the replaced throttle motor an assembly? Because the throttle motor is divided into two parts: a stepper motor and a potentiometer. That is, the computer cannot perceive the fault caused by whether the actual working condition matches the engine speed. If e317 and e318 appear in the fault code, it means that the feedback potentiometer is damaged.

4. In addition, the excavator throttle may also be caused by incorrect adjustment of the length of the pull rod or a problem with the motor potentiometer.

What are the advantages of a throttle motor?

advantage

First, the throttle motor can judge the driver's intention according to the details of the action range of stepping on the accelerator, thereby realizing precise control.

Second, it is more fuel-efficient and smoother than the cable-pull throttle.

Third, the stability is high, and it is not easy to flame out and intrusive.

Guangzhou HERUI has committed to providing the most suitable throttle motor at a reasonable price, and whatever it takes to satisfy the customer’s needs.