Chris Bruno
02-26-2010, 2:29 AM
Hi everybody,
I have the 22124 Craftsman tablesaw. Yesterday, I converted it to 240v as part of an ongoing reconfiguration on my workshop for an improved layout. When I tested it's new setup, the saw now makes a squealing noise for the first second or so after startup. It never did this before.
The saw now brings the motor up to speed instantly, whereas before it seemed as if perhaps there was a brief (very brief) ramp up before full RPM.
When I remove the blade, there is no squealing, so the added inertia of the blade appears to be enough to cause the squealing.
The squealing itself sounds very much like the belt slipping. The tension on the belt is only created by the weight of the motor in this saw. The belt is a 6 rib flat belt, not a V. I took the belt off to check it and it looks OK (no cracks, etc), though it is the original belt.
When it was still 120V, it was plugged into a 20A circuit, so total current available was really never a problem. I only ever popped the breaker when I had both the 2HP dust collector going and I was ripping 2.5" hardwood... Then, and only a couple of times ever, did the breaker pop. (Though the reason for the change is so that the dust collector can stay on the other circuit and T/S and Jointer will be on the 240v line that I ran. This way, I don't have to worry about ever popping the breaker during a cut.)
I'm going to check to see if perhaps somehow one of the pulleys may be slipping on its arbor, but I thought I'd post here and see if anybody else has ever heard or seen something like this. If its really a belt slipping because of some higher initial startup torque, then I guess I'll need to figure out a way to increase the belt tension beyond what the current design has.. hmmm..
-Chris
I have the 22124 Craftsman tablesaw. Yesterday, I converted it to 240v as part of an ongoing reconfiguration on my workshop for an improved layout. When I tested it's new setup, the saw now makes a squealing noise for the first second or so after startup. It never did this before.
The saw now brings the motor up to speed instantly, whereas before it seemed as if perhaps there was a brief (very brief) ramp up before full RPM.
When I remove the blade, there is no squealing, so the added inertia of the blade appears to be enough to cause the squealing.
The squealing itself sounds very much like the belt slipping. The tension on the belt is only created by the weight of the motor in this saw. The belt is a 6 rib flat belt, not a V. I took the belt off to check it and it looks OK (no cracks, etc), though it is the original belt.
When it was still 120V, it was plugged into a 20A circuit, so total current available was really never a problem. I only ever popped the breaker when I had both the 2HP dust collector going and I was ripping 2.5" hardwood... Then, and only a couple of times ever, did the breaker pop. (Though the reason for the change is so that the dust collector can stay on the other circuit and T/S and Jointer will be on the 240v line that I ran. This way, I don't have to worry about ever popping the breaker during a cut.)
I'm going to check to see if perhaps somehow one of the pulleys may be slipping on its arbor, but I thought I'd post here and see if anybody else has ever heard or seen something like this. If its really a belt slipping because of some higher initial startup torque, then I guess I'll need to figure out a way to increase the belt tension beyond what the current design has.. hmmm..
-Chris