How do i remove the chuck on my Fobco Star?

[jweaver]

I want to remove/clean/oil the chuck on my Fobco and assumed it was a Morse Taper and i needed a drift... But there is no slot in the quill?

What does this mean? Is it not a MT? If so, how do i take the chuck off?

Jon

 

[chippy1970]

My one has a collar above the chuck that you wind down which forces the chuck off

 

[Myfordman]

It has a male taper on the end of the spindle. I think it will be a JT6 taper. Measure the shank and get the correct sized wedges.
You need a pair of folding wedges designed for the job.
I *think* Chronos used to stock them
Arc Euro Trade, or RDG are worth a look too as well as the bay.

MM

 

[jweaver]

Just went out to measure it.... You cant get to the shaft. No way to measure it.. When i wind the chuck down, the quill comes down and none of the shaft is revealed.

There is a collar above the chuck when its fully retracted but it doesnt move.

 

[Myfordman]

There has got to be a gap - even if you can only get thin card in there to make a measurement.

Even so do you really need to take it off? Adding oil to a chuck will just attract dirt in the future and give you a horizontal stripe on your shirt!

 

[jweaver]

There has got to be a gap - even if you can only get thin card in there to make a measurement.

Even so do you really need to take it off? Adding oil to a chuck will just attract dirt in the future and give you a horizontal stripe on your shirt!

Yes.. But i figured i would need to take an accurate measurement and wanted to get callipers in.

But you make a good point... I dont really heed to take it off.. When i got it, the chuck was gummed up and could only be turned using a key.. After a liberal coating in 3in1, its freed up a lot... But i wanted it off, to give it a better clean and then get some of the excess oil off..


But, in truth, i dint need to do this and on reflection, i will probably leave it for now.

Thanks for your help.

Jon

 

[RossJarvis]

Maybe you need to put something between the chuck and the drill casting and force the chuck off that way, using the drill wheel.

Strangely enough, even though some items are designed for high precision work, bashing things with a b****y big hammer is the only effective way to deal with things. You may find that this particular drill wasn't designed to have the chuck removed. If there's no slot for a taper drift then the chuck may have been designed to stay put. Or maybe it wasn't designed to have been replaced.

There may be other ways of dealing with it, such as dismantling the spindle, using specialist wedges etc. It may even be that you take the chuck out with the spindle and replace it. Just don't expect that it was actually designed to be serviced or replaced. Some companies designed and built tools for engineers to use them and some companies designed and built tools to make money.

 

[chippy1970]

Just went out to measure it.... You cant get to the shaft. No way to measure it.. When i wind the chuck down, the quill comes down and none of the shaft is revealed.

There is a collar above the chuck when its fully retracted but it doesnt move.

You probably have a collar that holds the depth gauge. I didn't have one on mine so I'm guessing you need to remove that first to reveal anything.

 

[Myfordman]

OK what you need is a twin tub washing machine.

Take two tubs (ex baked bean cans or similar). Lower the chuck into the first one and add solvent of convenience. Paraffin, diesel, white spirit etc to just cover the chuck. allow to soak for a while then agitate by running the drill in bottom speed.

Remove washing tub and use second tin as spin dryer. Run drill on top speed until no more solvent is being thrown out.

There is always a solution - just you have not thought of it yet.

MM

 

[jweaver]

I need to revisit this thread.. I decided to leave the chuck on, but now I have found I have a slight wobble and want to measure it at the shaft, rather than the chuck.. I am hoping that the wobble caused by the chuck, not the shaft.. So need to find a way to get the chuck off.

I will get some photos and hope that someone knows what kind of drift I need.....