Jointer Blade install - Woodworking Talk - Woodworkers Forum
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post #1 of 5 Old 04-06-2018, 11:35 AM Thread Starter
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Jointer Blade install

I am restoring a 1950 Craftsman jointer. I just got blades to install, as it had none when I got it, my problem is I don't know if the blade goes behind the plate close to the outfeed table or in front close to infeed tabel? Any ideas. I found the manual but know help at all.
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post #2 of 5 Old 04-06-2018, 12:03 PM
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Originally Posted by Wskip49 View Post
I am restoring a 1950 Craftsman jointer. I just got blades to install, as it had none when I got it, my problem is I don't know if the blade goes behind the plate close to the outfeed table or in front close to infeed tabel? Any ideas. I found the manual but know help at all.
The plate is known as a gib. The blade goes behind the gib toward the rear table. If the model jointer you have is a type which has a non-adjustable rear table you will have to install the knives to where the cutting edge is absolutely level with the rear table. What I normally do is lay a lightweight steel ruler on the rear table and adjust the knives to where when you rotate the head the cutting edge just barely touches the ruler without lifting it. Then tighten it down.

I have a later model Craftsman jointer and on mine the blades tend to lift up when you tighten them. I have to adjust the blades so they are slightly low so when I tighten them the blades raise up to where they are suppose to be. From what I understand I may be the only one experiencing this but it wouldn't hurt to check the blades after you tighten them and make sure they tighten where they are suppose to.

On a jointer that has an adjustable rear table it's more critical you get all the blades alike rather than exactly level with the rear table. After you are done you can raise or lower the rear table to get it right.
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post #3 of 5 Old 04-06-2018, 12:34 PM
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Quote:
Originally Posted by Steve Neul View Post
The plate is known as a gib. The blade goes behind the gib toward the rear table. If the model jointer you have is a type which has a non-adjustable rear table you will have to install the knives to where the cutting edge is absolutely level with the rear table. What I normally do is lay a lightweight steel ruler on the rear table and adjust the knives to where when you rotate the head the cutting edge just barely touches the ruler without lifting it. Then tighten it down.

I have a later model Craftsman jointer and on mine the blades tend to lift up when you tighten them. I have to adjust the blades so they are slightly low so when I tighten them the blades raise up to where they are suppose to be. From what I understand I may be the only one experiencing this but it wouldn't hurt to check the blades after you tighten them and make sure they tighten where they are suppose to.

On a jointer that has an adjustable rear table it's more critical you get all the blades alike rather than exactly level with the rear table. After you are done you can raise or lower the rear table to get it right.
They need to be level with the outfeed table. Here is a video that might help you.


Don in Murfreesboro, TN.
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post #4 of 5 Old 04-08-2018, 05:46 PM Thread Starter
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Jointer blade install

The gib has a ledge on it. I don't know it the blade sits on it or does be blade go on the flat side. Check out my photos

Last edited by Wskip49; 04-08-2018 at 05:54 PM. Reason: need to add picture
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post #5 of 5 Old 04-08-2018, 08:09 PM
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Your second picture, the knife would go to the left of the gib with the pointed edge to the right. The gib has screws which pulls down against the knife like a wedge tightening it.

To be on the safe side when you think you have the knives installed post a picture. Also you might plug the jointer into an extension cord with the switch on and then plug in the jointer so it runs while you are not standing near it.
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