Working Principle, Inspection Method And Running Time Of Starter Motor

Starter motors in heavy equipment are one of the critical components. It provides starting capability for mechanical equipment. This article MyMROmarts will introduce how the electric starter motor works. and how to check if it's working. Also, the runtime of the starter motor will be discussed. To better understand its service life and maintenance needs.

Part 1: How An Electric Starter Motor Works

a. The electric starter motor is connected to the power system of the heavy equipment through the starting circuit. When the driver turns the key or presses the start button, the power system supplies current to the engine starters.

b. Electric starter motors contain a stator and a rotor internally. Electric coils are wound around the stator to form an electromagnetic field.

c. When current passes through the electric coils of the stator, a magnetic field is generated. This magnetic field interacts with the permanent magnets or poles on the rotor, causing torque to be applied to the rotor.

d. The torque makes the rotor start to rotate, which transmits the rotating force to the crankshaft of the internal combustion engine, and then starts the internal combustion engine.

e. Once the internal combustion engine is started and running, the electric starter motor is automatically disconnected and will no longer work. At this point, the internal combustion engine is kept running by the fuel supply and ignition system.

In general, electric starter motors use the principle of electromagnetic induction to generate a magnetic field. Torque is then generated through interaction with permanent magnets or poles. Finally, the rotational force is transmitted to the internal combustion engine. In this way, the electric starter motor starts to work normally and drives other diesel engine components and large equipment to work normally.

Part 2: How To Check If The Starter Motor Is Working

2.1 Observe The Running State Of The Starter Motor

First of all, we can preliminarily judge its working condition by observing the running state of the starter motor. A properly functioning starter motor should have no unusual noises, odors, or noticeable vibrations. If any abnormality is found, it should be repaired or replaced in time.

2.2 Measure The Current Of The Starter Motor

By using a suitable ammeter we can measure the current drawn by the starter motor. A properly functioning starter motor typically has a steady current rating compared to heavy equipment specifications. If the measurement deviates from the expected range, it may indicate a problem with the starter motor.

2.3 Check The Insulation Condition Of The Starter Motor

The insulation condition of a starter motor is critical to its proper functioning. By using an insulation resistance tester. We can measure the insulation resistance of the starter motor. If the insulation resistance is low or close to zero, there may be an insulation fault. Such a condition requires repair or replacement.

Part 3: How Long Can A Starter Motor Run

3.1 Design And Manufacturing Quality Of Starter Motors

A premium electric starter motor uses high-quality materials and advanced craftsmanship in its design and manufacture. This greatly increases its lifespan. Precise processes and reasonable structural design can reduce energy loss and wear. Thereby prolonging the service life of the electric starter motor.

3.2 Conditions Of Use Of The Starter Motor

Conditions of use have a direct impact on the life of an electric starter motor. Factors such as harsh working environments, overload operation, and frequent start and stop may accelerate the wear and aging of the electric starter motor. Therefore, reasonable use and maintenance are important factors to ensure the uptime of electric starter motors.

3.3 Regular Maintenance Of Starter Motor

Regular maintenance is one of the key measures to prolong the life of your electric starter motor. Including regular cleaning, lubrication and tightening connections, etc. Also, regularly check the electrical connections and insulation of the electric starter motor. This is also an important maintenance step to start the motor.

According to the above steps, when you check and find that your starter motor has problems and needs to be replaced, we are honored to recommend MyMROmarts starter motors to you. MyMROmarts is a one-stop aftermarket supply platform. Sells not only starter motors but also other accessories such as diesel alternator, fuel pumps, shut-off solenoids, etc. When buying in our store, you can always consult us if you have any questions.