How to remove pulley from Delta 11-990
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  1. #1
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    Default How to remove pulley from Delta 11-990

    Hi,
    I need to remove the front pulley on a Delta 11-990 drill press. There is a 15/16" bolt holding it on the shaft, however it is flush inside the pulley. Wondering how to remove it?
    Thanks for the help!
    pulley.jpgexploded-dia.jpg

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    Use a hammer and punch. Place the punch against the side of the nut, as close to the corner as possible, and give it a whack. Or, go to harbor freight, buy a 15/16" socket, and grind it down until it fits into the pulley recess.

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    I do have a socket that fits, but don't know which way to turn it, or how to lock the spindle from turning without damaging it.

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    Should be a standard CW thread. Grab a big allen wrench in the chuck or jam wood into the pulley to stop it from turning.
    Bill D.

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    Meaning CCW to remove?

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    Quote Originally Posted by handyguy View Post
    Meaning CCW to remove?
    Correct. Use an impact gun if you have one. I would wire brush the threads and apply penetrating oil for a few days. It is probably not on too tight. It is likely a keyed and tapered fit. There may be a keyed washer under the nut.
    Do not break or bend the pulley afterwards as you try to pull it up and off. A little heat should help break things free.
    Bill D

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    Thanks for the advice. Tried with a large allen wrench and breaker bar. Unfortunately, the chuck just popped of instead! Will try some penetrating oil next. But not gonna get much leverage from the chuck...20190913_151201.jpg

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    As it happens, i really only needed access to a couple screws under the pulley - i was able to finagle those out with a small screw driver. Never was able to remove the pulley. Even tried removing the quill, but that still leaves the pulley in with a compression fit bearing.

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    Locking the chuck and using a socket on the top was never going to work.


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