What should be paid attention to when using an aluminum casing motor?

The motor shell's substance of construction is aluminum. Its advantages over a cast iron shell are light weight, good thermal conductivity, good heat dissipation, minimal noise, and good movement stability. The routine maintenance is necessary to extend the service life of the aluminum shell motor. Let me outline the issues that should be taken into consideration when using and maintaining aluminum shell motors.

1. Startup: The aluminum shell motor should be mechanically inspected before starting, including determining whether the rotating shaft is flexible, whether the bearing is properly lubricated, whether the fan and hood are not in contact, and the aluminum shell motor base fixing rate, among other things. Verify the circuit to ensure that the aluminum shell motor's leads are properly connected. The wire ends must be properly linked, and installing a fuse before the aluminum shell motor's socket is advised.It is advised to perform a no-load test run without load before operating the aluminum shell motor to see whether the rotation is normal and whether the steering complies with the specifications. The single-phase aluminum shell motor's steering maker has already connected the winding, and it is difficult to modify it at will.

2. Operation: The speed is constant, the noise is mild, and the heat is adequate when the aluminum shell motor operates properly with a load. However, you should always be aware of the motor's aluminum shell's temperature rise. You must apply the brake to stop the process if you see extreme heat or other undesirable events. The voltage drop is mostly to blame for this.Although the windings won't burn right away, this kind of heat will shorten the motor's lifespan because of its aluminum cover. The outlet box and capacitors cannot be submerged in water, and there must be no mechanical damage. Additionally, the aluminum shell motor needs to be well vented and moisture-proof. The air shelter of the hood shouldn't be blocked, and the aluminum motor casing needs to be properly grounded.

3. Maintenance: The aluminum shell motor can be disassembled for maintenance after running for a while, cleaning the internal debris and dust, adding lubricating oil (use calcium-sodium-based No. 1 grease), and so forth. It is also advised to use a 500-volt shaker to measure the winding insulation resistance; the normal value should not be less than 0.5 megohms.

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