Why do we need Excavator starter?

Excavator starter is an important part of diesel engine starting. If the starter motor fails, the most direct problem is that the diesel engine cannot be started, that is, the excavator cannot be started. Therefore, ensuring the stability of the starter motor, that is, ensuring the normal start of the excavator.

What is the working principle of excavator starter?

How to judge whether the excavator starter is working?

What are the symptoms of the excavator starter not starting?

What is the working principle of excavator starter?

The DC motor produces electromagnetic torque, which means that the DC motor is responsible for the rotation. The transmission mechanism engages the gear driven by the starter motor into the flywheel ring gear, transmits the torque on the DC motor of the starter motor to the engine flywheel, drives the engine crankshaft to rotate, and drives the various components of the engine to perform a working cycle until the engine starts; after the engine starts , so that the starter automatically disengages the ring gear. The electromagnetic switch is responsible for turning on and off the circuit between the DC motor and the battery.

How to judge whether the excavator starter is working?

First, turn the key and listen to see if the locomotive starts. If it turns, but the engine doesn't start, it has nothing to do with the starter. The reason for this is more complicated and will not be repeated here.

If the key starter does not turn, then you need to check for a faulty starter or a faulty wiring.

Check whether the line from the locomotive to the starter is connected (this should be checked) to ensure that there is no short circuit and open circuit. If it is found that there is a short circuit and an open circuit, it should be a wiring problem. If there is no short circuit and open circuit, it should be the starter failure.

What are the symptoms of the excavator starter not starting?

The starting value of the excavator is the process of controlling the starting of the starter through the key switch, thereby driving the engine to work.

The whole vehicle has electricity, the display is bright, and the fuel pump is working, then the key switch is turned to the starting gear, but the starter does not turn. The main reasons are:

1. The key switch is faulty. After the start gear is turned on, the power of the b terminal cannot be connected to the c terminal and the acc terminal, resulting in the starter relay not working;

2. The starting relay is faulty. The control coil of the starter relay is damaged or the main contact is ablated, resulting in no power to the control line of the starter;

3. starter failure. The internal circuit of the starter is damaged and cannot work;

4. The safety lock switch is faulty, resulting in an open circuit of the starting circuit;

5. The intermediate circuit (open circuit) or fuse of the starting circuit is blown.

The above points, there is always at least one point that caused the failure phenomenon you mentioned.

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