Had a service call today to find out why a large table saw was going through motors. Table saw is a large Jet saw used daily. Customer has went through two motors in two years, didnt think that was unreasonable considering Jet is not exactly high quality equpiment. They replaced the second Jet made motor with a Dayton motor yesterday. Saw worked for the day and then this morning they called us because the saw lacked power.
The motor is 230 Volt, single phase. I started the saw and the motor sounded like a 3 phase motor thats single phasing. Theres 240 volts at the receptacle that the saws plugged into. I checked the motor and it's wired correctly.
One of the employees was concerned because he checked for voltage and after seeing the voltage on the high leg he thought that was the cause of the problem. I explained to him the high leg can be used as long as its not a 110V circuit. The instruction sheet that came with the motor said that all voltages should be plus or minus 1% of each other. Has anyone heard of a high leg causing problems on a 230 volt motor?
I didnt get a chance to check the motor out further, by the way its acting Im thinking the start/run capacitor is dead.
