It would take an owner to confirm if your unit is normal. I say run it until it dies. Here is some background (but I can't explain the noise.)
The inernal device allowing the variable speed is a varrister (sp?) and may go bad, though totally broken is more likely as in any/many electrical things. The initial full-speed could help prevent a burnout, as my friend recommends for ceiling fans because of the 'strain' starting the fan at low speed (truth or fiction?) I have destroyed one sabar saw by depressing the switch slightly and hold it there while the blade was not moving. Lesson learned.
Actually, a varister has only 2 leads and therefor your speed controller must surely be a little squear block with several wires. Replaceable but I'd wait until it dies.
SOURCE: changing control switch
Sorry, but that is not going to work ,that motor is not compatible with that type switch. you would need a variable speed motor.Newer models have many more improvements, you should try one of them,much smoother cut. Good luck and please don't forget to rate this answer.Thanks.
SOURCE: Need manual for Craftsman 16" variable speed scroll saw
Go to www.searspartsdirect.com and search by model number.
SOURCE: saw blade broke. motor won't run after changing
It would have cost more to have Sears fix the saw than I paid for it, so I got my meter out and by checking the voltage drops across all of the electrical connections in the saw , I determined that the on / off switch was defective. This switch is the same switch used to turn the lite on and off, so I took the switch out of the lite and used it in the saw. I ordered a new switch for the lite and will install it when the new one comes. Thanks for your interest and help. fletcher1
SOURCE: How can I get an owners manual for a Craftsman 16"
I have one. E-mail [email protected] and I will copy and send one, no charge.
Manufacturer authorized substitution: 22256 may differ in appearance, but is a functional equivalent to prior parts including 9-22256.
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