capacitor problem?

seandequeiroz | Posted in Power Tools and Machinery on July 23, 2010 12:24pm

My band saw lugs and moves slowly for about 5 seconds before it kicks in to it’s normal speed. It is not the belt slipping. Could it be that the capacitor is dead or dying. I don’t know much about electronics. Any ideas for a fix?

Replies

Don01 | Jul 23, 2010 04:17pm | #1
Starter windings

You should pull the motor and take it to a rewind shop if not under warranty. Could be capacitor, starter windings and a sticky bushing.

Don
stevemorris | Jul 27, 2010 06:47pm | #2
funky motor

mosy common cause is a balky start switch

its a centrifugal switch that engages the start windings, disengaging them when the motor comes up to speed

usually an easy fix, disassemble the motor, clean the contacts, reassemble. easy!!
gearhead_jd | Aug 10, 2010 05:30pm | #3
Motor Problem

The problem depends on the type of motor. Is it a shaded pole or a cap. start motor ? If it has a bump on one side, it is probably cap. start. most shaded pole motors do not have the bump on the side which contains the capacitor. If you determine it is shaded pole, it has some centrifugal operated contacts on one end of the shaft, inside the motor housing. These contacts get pitted and stick.. dissasemble the motor and file them gently and see if it runs better. ...J.D.
bmwz3coupe | Aug 14, 2010 08:29pm | #4
When my Craftsman tablesaw of 25 years starting doing the same thing as yours I asked all around and received alot of advice but one was the cheapest ---so I fired up the air compressor and blew out the motor real good and it has worked perfect ever since.