Thread: Gloat but don't tell SWMBO

Originally Posted by jmk89

Anyway, I pick it up this weekend - I have decided that the kids will give it to me for Father's Day, so I will stash it out of SWMBO's sight until then.

Father's day, of course . Opportunity knocks. {off to the cattledogs..]

Jeremy

Do NOT be tempted to apply excessive force against the backgear when attempting to remove your chuck. This is a sure way of stripping teeth.

You would be better to jamb a wedge of softwood under the headstock pully to lock up the spindle. Fit the chuck key to the chuck and give it a couple of exploratory hits with a wooden mallet or rubber hammer. If this fails, hold a length of hardwood in the chuck jaws and hit with a bigger hammer.

Last resort is to remove the spindle, hold in vice with suitable soft jaws and use a little more brute force and/or heat.

BTW, I think you will find that the headstock pully is held on the spindle by a grubscrew through the centre step. Loosening this screw releases the pully and bullgear, allowing operation of the backgear. When tightening the screw, make sure that it goes back into its recess in the spindle.

Hope this helps.

Tony

Thaks, Tony. I certainly will try everything before stripping the backgear teeth

Jeremy

Whilst you're deciding what level of violence to use, give it a solid spray with WD40 or the like, and again tomorrow. It can take days for the oil to penetrate,

Bodgy

The WD40 treatment is already underway. It will have about a week of large daily doses before I can attack it with violence.

WD40? Try a can of Inox instead - good stuff.

Hi Guys,
I know its a boilermaker fix, but may I suggest this solution.
Get a piece of hex bar ,say 25mm AF & 100mm long and weld a long stout handle on it.

Strike the long hong handle with a BFH. Remember that its likely it will be a left hand thread so the chuck won't spin off when working.

I would put the gear train in its lowest ratio to give some back load to it.

Cover up the bed ways so you don't smack em by accident and it should work.

I got the hammer and welder in , but no oxy, so 2 out of 3 is not bad.

ps A quick edit ,I just spotted the back gear comment.I would not want you to wreck that of course. The gear train should still be able to turn therefore I can't envisage you stripping any gear teeth. What say the rest of you?

Cheers
Grahame

Think the possability of it being left hand very unlikely,it would screw off.
The removing tool is ok but you may run the risk of damaging the jaws in the three jaw.

Originally Posted by pipeclay

Think the possability of it being left hand very unlikely,it would screw off.
The removing tool is ok but you may run the risk of damaging the jaws in the three jaw.

Well I said you were dealing with boilermaker didn't I ?

Yes I admit I had it Rrsabout ?

I have taken drill chucks off by that method .In these cases the hex was an allen key.I can't see why it should not work--IF-- the chuck is screwed on.

Grahame

Graham when you take a drill chuck off an electric drill you usually remove a centre screw first which is left handed and then remove the chuck from the spindle which is normally right handed.

I can see your reasoning for a left handed lathe chuck, but if anything ever jammed up the spindle in normal anti-clockwise rotation would screw the chuck off.

I just saw this. Nice score JK - should be a lot of fun!

To remove the chuck.... I would do the following:

Remove the bolts from chuck/backplate.
Spray WD, Inox or whatever you have around...... (vegitable oil and kero mix works well) from both sides. Heat up the area with hair dryer to help if you like.

Allow to penetrate, and then remount chuck to backplate.
Insert 10 degree timber wedge under backgear from front of lathe.
Insert chuck key in chuck, and pull key towards you.

Done.

Thanks to everyone for all the suggestions. I will try them out, starting from the least violent and keep going until one of them gets the b*gger off.

Just came upon this. Glad I did.

Not ametalwork person but I love those sorts of good old fashioned machines. Bit like steam engines. Something irresistable about them.