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Re: Jointer Knife Removal and Teardown

Posted: Thu Aug 17, 2023 2:41 pm
by Darcywells
Chapmanruss,

Thank you so much for the information. My jointer has a metal plate attached and it says model number 620 serial number 36159
I can say that the cutter head assembly part has a number on it, 100000, stamped on it. Not sure what that means, but there it is.

May I ask, should the the front and rear bearing housings spin loosely or be a bit stiff? The one with the rod sticking out spins freely and the other one does not.

Thank you.

Re: Jointer Knife Removal and Teardown

Posted: Thu Aug 17, 2023 3:05 pm
by JPG
Dry bearings spin freely. Lubricated bearings rotate easily but do not spin.

Re: Jointer Knife Removal and Teardown

Posted: Thu Aug 17, 2023 3:55 pm
by Darcywells
JPG,

Thank you. I will lubricate the free spinner.

Re: Jointer Knife Removal and Teardown

Posted: Thu Aug 17, 2023 4:11 pm
by JPG
Darcywells wrote: Thu Aug 17, 2023 3:55 pm JPG,

Thank you. I will lubricate the free spinner.
They need grease, not oil. Easier to just get new ones.

Re: Jointer Knife Removal and Teardown

Posted: Thu Aug 17, 2023 6:43 pm
by Darcywells
Thank you JPG.

Re: Jointer Knife Removal and Teardown

Posted: Fri Aug 18, 2023 11:56 am
by chapmanruss
It would be best to replace the Bearings. The Jointer runs at R on the Speed Indicator which is 3500 RPM's on the upper SPT Drive and Quill. The Jointer attaches to the lower "high speed" shaft that runs about 1.6 times faster so 5600 RPM's. With the higher speed the jointer runs it is a good idea to have bearings that are in top shape.

Re: Jointer Knife Removal and Teardown

Posted: Fri Aug 18, 2023 12:30 pm
by Darcywells
Chapmanruss,

Thank you for the information. I really appreciate it.