How to Diagnose a Bad Power Cord or Switch
This article outlines the basics of power tool and appliance electrical diagnosis. You can use a multimeter to test tool and appliance cords and switches, the two parts usually responsible for electri...
Power Tool Care and Maintenance 101
This article suggests guidelines for power tool care and maintenance. It also describes information tools available at eReplacementParts.com.
It sounds like you have done all you can do to get rid of vibration problems. You may want to make sure the belts are lined up straight on the pulleys. Make sure the pulleys are tight on the shafts. And just get under there and make sure all of the major components are secured. If I can think of anything else, I'll let you know.
Have an old Rockwell table saw model 34-466 with a Rockwell 83-621 motor. Was working fine. Then when I turned it on, the blade rotated about 1/2 revolution very slowly and stopped. When I turn the saw off, I can see the switch move to the off position. When I turn it on, I can see the switch move on and hear it click. The motor doesn't run or the blade turn and I am getting a faint humming sound when in the on position. I can turn the blade manually just fine, so it hasn't frozen. Any ideas on what might be the problem? Thanks to all for your help.
Right off the bat I thought of three situations that it might be, and they all have to with the motor. It may be a start capacitor problem, an internal centrifugal switch problem or a start winding issue. You may want to take your motor to a qualified electric motor repair shop in your area and have them take a look at it. If it's past the point of no repair you may want to consider upgrading to a 3hp 1ph motor. The initial investment is costly, but you will notice a big difference between the two. One other thought, check the contacts on your switch making sure they are not scored or burnt.
We show that the part number 422043955001 front trunnion is compatible with at least 83 models of the Delta Unisaw. Chances are in your favor that it will work on yours. Of course if yours is a left tilt or the new style with the tilt and raising mechanisms up front it won't work.