Clark chuck dismantling

[sparky mikeParticipant @sparkymike]

I need to take my Boxford three jaw Taylor (not Clark!! ) chuck to bits as it is getting stiff to opeate. There are two socket head screws in the rear. What do they do ?

I have removed jaws. Does the centre push out or screw out to the rear so that the scroll can be removed ?

Mike.

Edited By sparky mike on 08/10/2021 13:19:01

[sparky mikeParticipant @sparkymike]

[sparky mikeParticipant @sparkymike]

Panic over. I tapped the chuck gently with a hide mallet, after removing the two sunken screws and the back end of the chuck came off. There is a split dead centre of the chuck key square hole rotators.

Cleaned it all out , and there was a lot of bits of brass etc. in various places, but after putting back together it is still a bit on the stiff side. ??

Mike.

[old martParticipant @oldmart]

There are two possibilities for the stiffness, there might be some muck in a difficult to detect place, or maybe the chuck is in an unworn condition and the parts are close fitting. You did oil all the moving parts, I trust.

[sparky mikeParticipant @sparkymike]

It had the remains of grease in it ,which I replaced.

It is stiff without the chuck jaws fitted.. There is a thrust washer that sits next to the scroll. I did wonder if that was a fraction too thick, but decided to leave that alone until I gather more info.

Mike

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