My DeWalt electric drill started tripping a ground-fault interrupter outlet and eventually I traced the problem to the power cord. I removed the cord from the drill and found something I have never seen before on a cord, and neither has the local electric motor shop or the local DeWalt dealer. The three wires from the cord are green, white and black. The black and white wires go to the trigger switch for the drill motor. All three wires also "pigtail" to a common encapsulated or "potted" piece that I am guessing is the problem. The man at the electric motor shop said he'd just cut the potted piece out of the tool. I'm wondering what its purpose is. Any ideas, anyone?
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First check that it's plugged into a good outlet. Either try another electrical item in that outlet or try the band saw in an outlet you know to be good. Next step; the power switch on the riser has to have a yellow switch key (Ryobi part number 0121010232) in it to work properly. Without the key the switch will not activate the motor. If that's all OK, you should use a volt meter to first check that power is getting to the switch through the cord, then through the cord to the motor. If that's all in order you may have a problem with the motor that can only be tested by a service center with the proper equipment to check the capacitor and armature conductance.
I would start with confirming that the cord is good and is connected OK to the motor. If there is a plate on the motor covering the a little compartment where the cord is wired in to the motor, remove it. See if you have power at this point. Best way to do that is with a non-contact voltage tester. They are about the size of a fat pen and can be had for about $10--- and they are an absolutely wonderful tool to have.
The first thing that I would check is the wiring to the saw. My guess is that the wire to the saw or the cord is not heavy enough.
As saw like that can pull a lot of amps. Probably 15 or more when working hard. What happens is that when the amp draw goes up and the cord is too light, the voltage drops which increases the amps. and starts a vicious cycle...
The one thing that finally gives is the internal overload in your motor.
Try running heavier wire or a heavier extension cord if you are using one.
#12 wire or a 12 wire cord would be minimum, if running over say 50 feet then you should be looking at #10 wire.
I hope that this will help you to solve your problem!
Not that bad, I would go to Dewaltservicenet.com and look at an explosion before taking yours part. You have to remove the top of the handle, there is cover on the side towards the blade that is tight to remove and then the strain relief on the tube. The cord set that you need is 330078-98 list for 16.76. It is a 10ft 16-2 wire. Just take your time and if you are handy with tools you should have no problem. Let me know if I can help I work on them all the time.