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CH10 Nu tool pillar drill Chuck removal

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kenboy-01

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Hi, Searched high and low for this answer to as yet to no avail, are you able to help out with this.

Regards ken
 

novocaine

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It's a screw on. I think there should be a left handed screw inside the chuck jaws. I'm not sure if there is another thread on the end of the arbor or not. if there is then chuck a bolt up with the head sticking out and use a spanner to undo it (should be left handed too).

you'll need a way to lock out the spindle from the top.
 

kenboy-01

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Thanks for that I will give it a whirl I was not sure if it was morse tapered or screwed and now I know, onca again thanks
 

kenboy-01

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Hi Well try as i may I cannot shift this chuck ,but what is puzzling me is the question of right or left handed thread , when switched on chuck rotates in a clockwise direction this would indicate to me that it is indeed a right hand thread or am i barking up the wrong tree I got in touch with the chuck manufacturer and they advised that it is a knock off method to remove, this cannot be as I can see the begining of the thread thats holding the chuck on but nether the less i tried this but to no avail, any other thoughts on this would be welcome
 

Phil Pascoe

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The thread you can see might be a threaded end (male) on a morse taper - which would knock out. If the chuck were threaded it would be internal (female).
 

novocaine

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this dude is taking one apart (with big manly tools, grrr)
about 4.20 he knocks to quill/arbor out, you can see it's rather spindly (also a good word for it, maybe the right one, it's early) and very unlikely to be a morse taper as it simple wouldn't fit inside it.
if it is a "knock off" then it's on a very short straight sided or tapered internal to the chuck and to be honest, you don't stand a chance of removing it in the machine it's a spindle out kind of job.

your right I'm wrong. the internal screw is left hand, this would be right hand, I apologies, no excuses I shall be reprimanded.

if the bolt trick isn't working then chuck up a big old hex wrench (allen key for us normal people), the flats will help, even better if you've got a socket set type. for the sake of a circlip you could knock the spindle out to get a better grip on it.

oh yer, the video. :)

https://www.youtube.com/watch?v=uJqB6Oe58Aw
 

novocaine

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novocaine":22yno147 said:
this dude is taking one apart (with big manly tools, grrr)
about 4.20 he knocks to quill/arbor out, you can see it's rather spindly (also a good word for it, maybe the right one, it's early) and very unlikely to be a morse taper as it simple wouldn't fit inside it.
if it is a "knock off" then it's on a very short straight sided or tapered internal to the chuck and to be honest, you don't stand a chance of removing it in the machine it's a spindle out kind of job.

you're right I'm wrong. the internal screw is left hand, this would be right hand, I apologies, no excuses I shall be reprimanded. I shall sit in the corner with my nu tools DPF20 that does have a morse taper and wimper to myself about easy chuck replacement. :twisted: (hammer) (sorry, uncalled for)

if the bolt trick isn't working then chuck up a big old hex wrench (allen key for us normal people), the flats will help, even better if you've got a socket set type. for the sake of a circlip you could knock the spindle out to get a better grip on it.

oh yer, the video. :)

https://www.youtube.com/watch?v=uJqB6Oe58Aw
 

novocaine

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forgot to mention, if you can't turn it, you are going to need a bit of percussive assistance. big old mallet or if you have one, an impact gun.
 

kenboy-01

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At Last, grat tip about using a large allen key in the the chuck I removed top pulley and and gripped saft with mole grips (Protected) and used a bit of milsd steel box section on the allen key and using a fair amount of force of it came and indeed it turned out to be secured on a tapered shaft, after thoroughly cleaning inside of chuck and recieving spindle, replaced but there is still to much run off so I am going to replace the bearings in due course, that looks pretty straight forward?, once again thankyou.
 

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