Working Principle And Common Problem Analysis Of Heavy Equipment Engine Starters

The engine starters for heavy equipment are one of the key components to keep the engine starting and running properly. This article from MyMROmarts will provide an in-depth look at how the engine starter works. And analyze three common problems that may occur during the startup process. The starter continues to crank after the engine starts. The starter remains on after the engine starts and the starter operates, but the engine does not turn.

Starter Keeps Cranking After Engine Starts

It is a common condition for the engine starters to continue to crank after the engine is started. Usually caused by the following reasons:

1.Starter relay failure: The starter relay is responsible for controlling the opening and closing of the starter. When a relay is damaged or malfunctions, it can prevent the starter from shutting off properly, allowing it to keep turning. The solution is to check and replace the faulty starter relay.

2.Insufficient spring resilience: The starter usually contains a spring mechanism inside to control the rotation of the starter. If the spring returns insufficient or fails, the starter may not stop spinning. At this time, the starter needs to be repaired, or the spring replaced.

3.Engine starting mechanism failure: The engine starting mechanism is a key component connecting the engine and the starter. Responsible for transmitting the start signal and power. If the starting mechanism is faulty or damaged. May cause the starter to fail to disconnect from the engine. So that it continues to rotate. This condition requires repair or replacement of the engine starting mechanism.

Starter Stays On After Engine Started

A starter that stays on after the engine starts is another common failure. This may be caused by some malfunctioning or damaged parts in the diesel engine spare parts. The specific reasons refer to the following:

1.Sticky starter relay: The starter relay may stick when it is working, causing it to fail to close in time. This can be caused by dirt, wear, or a faulty circuit. The solution is to clean or replace the faulty relay.

2.Engine sensor failure: During the starting process of the engine starter, multiple sensors are responsible for monitoring the state of the engine. If one of these sensors fails, it may cause the starter to think that the engine has not started. The engine starter will remain on all the time. Repairing or replacing the faulty sensor can solve this problem.

3.Control circuit failure: The control circuit of the engine starter is the key to ensure the normal operation of the starter. A damaged or malfunctioning control circuit may prevent the starter from shutting off. Checking the control circuit connections and repairing or replacing possible faulty parts are steps to take to resolve this issue.

Starter Works, But Engine Won't Turn Over

When the diesel alternator works normally, the starter works normally, but the engine cannot rotate. May be caused by any of the following:

1.Engine mechanical problems: Damage or jamming of the internal parts of the engine may cause the engine to fail to rotate. This can be caused by lack of lubrication, aging parts, or other mechanical failures. The solution is a thorough inspection and repair of the engine.

2.Fuel supply problem: The engine needs sufficient fuel supply to start. If the fuel pump fails, the fuel line is clogged, or the fuel quality is not acceptable, the engine may not start properly. Checking the fuel supply system and correcting the problem can resolve such situations.

3.Ignition system failure: The engine's ignition system is another possible cause of engine starting problems. If the ignition coil, spark plug or ignition control module is damaged. This can cause the starter to work, but the engine won't turn. Repairing or replacing the faulty ignition system component can resolve this issue.

Heavy equipment engine starters are a critical component in keeping engines starting and running properly. Understanding the working principle of the engine starter and possible problems can help to diagnose and solve abnormal conditions during engine starting in time. The starter continues to rotate after the engine is started. The starter remains on after the engine starts. Starter works but engine doesn't crank problem. Malfunctions need to be located and resolved by inspecting starter relays, spring mechanisms, engine starting mechanisms, control circuits, sensors, engine mechanics, fuel supply systems, and ignition systems, among other related components. Customers should pay attention to the maintenance and repair of the engine starter in their daily work. Only in this way can the normal operation and safety of heavy equipment be guaranteed.