The EASA Technical Education Committee has added four new videos to the Electric Motor Repair Tips series. The new videos include: Lubricating an Open Ball Bearing During Assembly of an Induction Motor; Testing Interpole Polarity on a DC Machine; Seating Carbon Brushes on a DC Machine; and Lubricating an Open Ball Bearing During Assembly of an Induction Motor.

These videos and prevoulsy released videos can be found now and in the future as separate entries in the Resource Library, on the new Training Video Library page and on the technical support information page. These videos are also available to the public as a special playlist on EASA's YouTube channel.

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When rewinding the exciter rotor for a synchronous motor or alternator, avoid the common mistake of assuming the exciter poles are the same as the main rotor poles. First, count the stationary exciter field coils. The exciter rotor must be wound for the same number of poles as the exciter fields. Second, divide slots by poles to make sure the coil pitch passes the sanity check and to avoid future confusion for others. If the exciter rotor has half as many coils as slots, convert it to a conventional lap winding just as you would do for a conventional stator.