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  1. #1
    rrich Guest

    Default Changing table saw blades safely

    I am writing this in response to a comment that a woodworker was unsure of how to change the blade. This procedure will work on either left or right tilting saws. Note that a right tilting saw uses left hand threads on the arbor while a left tilting saw uses right hand or normal threads.

    Un-plug the table saw.

    Raise the blade to full height.

    Take a piece of scrap wood or wooden push stick and feed it into the blade teeth as if cutting. This immobilizes the blade and arbor.

    Place the wrench over the nut and pull the wrench toward you. This will loosen the arbor nut.

    Reach into the throat, place your fingers under the arbor and with your thumb spin the top of the nut toward you. Catch the nut with your fingers.

    Place the nut on the table saw away from the throat. Remove the arbor washer and place it next to the nut.

    Use both hands and guide the saw blade off of the arbor and place the blade in its storage place. Note how the teeth of the blade are pointing toward you.

    Install the new blade with the teeth pointing toward you.

    Place the arbor washer on the arbor shaft.

    Hold the nut between your fingers and thumb. Thread the nut onto the arbor shaft using your thumb to push the top of the nut away from you. Snug the nut as tight as possible with your fingers.

    Put the wrench on the nut and while holding the blade between thumb and fingers, push the wrench away from you. When the nut is snug, pull the blade toward you so that the wrench rests on the throat opening. Pull the blade toward you until you can't make it any tighter.

    Lower the blade, install the throat plate and plug the saw in.

    Stand to the side and turn the saw on for a few seconds.

    The blade is now as tight as it needs to be and the saw is ready for use.

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  3. #2
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    Excellent explanation.

    Only thing I do differently is that I do it from the back. Not an important difference, it's just that I'm there after unplugging, and just sort of assumed everyone else would be too.
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  4. #3
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    Note that a right tilting saw uses left hand threads on the arbor while a left tilting saw uses right hand or normal threads.
    I was under the impression that the thread was related to the rotation of the shaft (the nut will loosen in the same direction as blade rotation), not which way it tilts.

  5. #4
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    Quote Originally Posted by elanjacobs View Post
    I was under the impression that the thread was related to the rotation of the shaft (the nut will loosen in the same direction as blade rotation), not which way it tilts.
    You're both right just using different language or analogies. If the motor is on the right side as you face the blade the motor rotation will be clockwise if it's on the left it will be anti clockwise. So either way the nut undoes toward you.
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  6. #5
    rrich Guest

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    Quote Originally Posted by AlexS View Post
    Excellent explanation.

    Only thing I do differently is that I do it from the back. Not an important difference, it's just that I'm there after unplugging, and just sort of assumed everyone else would be too.
    I had never thought of that. Thanks.

  7. #6
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    Quote Originally Posted by rrich View Post

    Take a piece of scrap wood or wooden push stick and feed it into the blade teeth as if cutting. This immobilizes the blade and arbor.
    As my tablesaw (TSC10HB) has two flats machined on the arbor on the motor side I use two homemade long handled spanners, one on either side of the blade, to loosen and tighten the nut.


    Peter.

  8. #7
    rrich Guest

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    Quote Originally Posted by Sturdee View Post
    As my tablesaw (TSC10HB) has two flats machined on the arbor on the motor side I use two homemade long handled spanners, one on either side of the blade, to loosen and tighten the nut.


    Peter.
    Mine, also. It is just that the push stick is always laying on the saw and one wrench is on a magnet on the front of the saw.

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