Following your repair procedure, you found the motor runs far too hot. Previously, we identified external factors that may be causing this. Now let’s take a look at some conditions under which the motor must work harder to turn a given load.
• Misalignment. You used a laser alignment tool to verify that the motor’s perfectly aligned to its base. But what about the load? A misalignment on the load side of the coupling may show up in binding or friction in the