R8 quill location pin

I wonder if anyone can advise how difficult it is to replace the location
pin or key as found in a Bridgeport R8 vertical spindle. I have noticed one
of my Briddgie's has no location when inserting a Clarkson chuck, I don't
want it to start spinning and then ruin the spindle. It's obvious to me the
spindle needs to be removed, but how much junk has also to be removed to get
it out?
Thanks
Bob
Reply to
Emimec
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In article , Emimec writes
My Bridgie's never had its pin in all the time I've owned it, and I've never spun a tool in the spindle.
I'd leave it alone.
Reply to
Nigel Eaton
The pin does nothing constructive at the best of times and breaks off in most machines anyway. Ignore it.
Reply to
Dave Baker
Many thanks, points taken, pin is now forgotten !!!! Bob
Reply to
Emimec
Hello to change the key its dead easy lower the quill about 2" look at the back of the quill there is a 1/4" U N F grub screw take that out this should now let you undo the locking ring on the quill remove locking ring to reveal the screw in the quill you will find that it sits above the bottom of the quill to gain better access using your mallet tap the collet drawbar down gently this will push the spindle with the bearings out of the quill you only need about a 1/4" to get the allen key into the screw if you knock the quill out any further the whole spindle will drop now the first one of the grub screws is only about 1/8" thick and is open ended this is just the lock screw then remove the second 1/4" U N F grub screw check the length as this is important it needs the key tip adding onto the length of it but no longer the tip needs to be about .145" dia and about .100" in length check the diameter with your collets groove screw a new grubscrew back in again checking with your collets that you can slide them in and out easy lock it into position with the half grub screw pull the quill down onto the bed to push the spindle back in place and replace the bearing locking ring making sure you have a few thou gap between the locking and the end of the quill tube this makes sure the spindle and bearings are pressed right in to the quill then replace the 1/4" U N F grub screw into the quill tube but make sure you only nip this one lightly otherwise you will find it distorts the quill and makes it tight at the top of the travel it's dead simple really with care and patience and it is better with it in as it makes it easier when tightening the collet up cheers Colin
Reply to
Colin Wildgust
Many thanks Colin, a very comprehensive answer. I will take a look, having said earlier I would not bother, but this seems easy, and as you say, stops the chuck revolving when tightening Regards Bob
Reply to
Emimec
I didn't have one in mine for ages then fitted one I dont hang on the draw bar as much now as I know that it wont spin
Andrew
Reply to
Andrew Bishop
Comprehensive certainly, but almost incomprehensible - surely the odd new sentence and comma would not have gone amiss ? GL
Reply to
GL
On dgust read dat myself 'n near sufficatid pehhaps dis is more c'prehenstiggle
Tehe..
Reply to
Wayne Weedon
Sorry, Here's a translation for the cousins:-
Howdy t'change th' key its daid easy lower th' quill about 2" look at th' back of th' quill thar is a 1/4" U N F grub screw take thet out this hyar sh'd now let yo' undo th' lockin' rin' on th' quill remove lockin' rin' t' reveal th' screw in th' quill yo' will find thet it sits above th' bottom of th' quill t'gain better access usin' yer mallet tap th' collet drawbar down juntly this hyar will push th' spindle wif th' barin's outta th' quill, ah reckon. Yo' only need about a 1/4" t'git th' allen key into th' screw eff'n yo' knock th' quill out enny further th' whole spindle will drop now th' fust one of th' grub screws is only about 1/8" thick an' is open inded this hyar is jest th' lock screw then remove th' second 1/4" U N F grub screw check th' len'th as this is impo'tant it needs th' key tip addin' onto th' len'th of it but no longer th' tip needs t'be about .145" dia an' about .100" in len'th check th' diameter witcher collets groove screw a noo grubscrew back in agin checkin' witcher collets thet yo' kin slide them in an' out easy lock it into posishun wif th' ha'f grub screw pull th' quill down onto th' bed t' push th' spindle back in place an' replace th' barin' lockin' rin' makin' sure yo' haf a few thou gap between th' lockin' an' th' end of th' quill tube this hyar makes sho'nuff th' spindle an' barin's is pressed right in t'th' quill then replace th' 1/4" U N F grub screw into th' quill tube but make sure yo' only nip this hyar one lightly otherwise yo' will find it disto'ts th' quill an' makes it tight at th' top of th' travel, ah reckon. Tt's daid simple pow'ful wif care an' patience an' it is better wif it in as it makes it easier when tightenin' th' collet up cheers Colin -- Regards,
John Stevenson Nottingham, England.
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Reply to
John Stevenson
Regards,
Or for those living south of watford....
Wotcher ter change the bloomin' key its dead easy lower the quill about 2" 'ave a look at the back of the quill there is a 1/4" U N F grub screw take that out this should now let yer undo the lockin' ringg on the quill remove lockin' ringg ter reveal the screw in the quill yer will find that it sits above the bottom of the bleedin' quill ter gain better access usin' yor mallet tap the collet drorbar dahn gently this will push the spindle wiv the bloody bearings out of the bloody quill yer only need about a 1/4" ter get the allen key into the bloody screw if yer knock the quill out any furffer the bleedin' 'oole spindle will drop now the chuffin' first one of the grub screws is only about 1/8" fick and is open ended this is just the bleedin' lock screw then remove the second 1/4" U N F grub screw check the lengff as this is important it needs the key tip addin' onto the bloomin' lengff of it but no longer the tip needs ter be about .145" dia and about .100" in lengff check the diameter wiv yor collets groove screw a new grubscrew hammer and tack in again checkin' wiv yor collets that yer can slide them in and out easy lock it into position wiv the bloody half grub screw pull the bleedin' quill dahn onto the bloody bed ter push the spindle hammer and tack in place and replace the bloomin' bearin' lockin' ringg makin' sure yer 'ave a few fou gap between the lockin' and the end of the quill tube this makes sure the chuffin' spindle and bearings are pressed right in ter the quill then replace the 1/4" U N F grub screw into the bloody quill tube but make sure yer only nip this one lightly uvverwise yer will find it distorts the bloomin' quill and makes it tight at the top of the travel it's dead simple right wiv care and patience and it is better wiv it in as it makes it easier wen tightenin' the bloody collet up cheers Colin
Peter
Reply to
Peter Neill
Or the abbreviated version:
Piece ov piss. Just it it wiv a ammer Guv.
Regards, Tony
Reply to
Tony Jeffree
Nope, still makes no never mind down yer boyo, this ouse needs an overman to sort you lot oot. Jones the engineman will know what yer bleeting bout, mightbe Jones the hammerman would be ontuit. Now wer did that shipp wanter to?
Regards
Keith (an Englishman abroad)
Reply to
jontom_1uk
DON'T COME HOME..................... -- Regards,
John Stevenson Nottingham, England.
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Reply to
John Stevenson
at:-
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John
Thats the second time thats been said to me today
Regards
Keith
Reply to
jontom_1uk
at:-
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The sheep said it as well?
Regards, Tony
Reply to
Tony Jeffree
at:-
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It might have done, it's so difficult to understand their accent when they're excited. My good lady uttered the first tongue lashing this morning as she felt I needed some motivational help to ensure I bought some more copper pipe to finish the plumbing I'm supposed to be doing right NOW. Anyone know any good excuses?
Regards
Keith
Reply to
jontom_1uk
at:-
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bought
doing
Chinese had bought all the copper?
AWEM
Reply to
Andrew Mawson
If you've had a good tongue lashing from the missus this morning I'd call that a good day whether you get round to plumbing or not. :)
Reply to
Dave Baker
Ahh Dave, I WISH.
I know nostalgia isn't what it used to be but those were the days weren't they? Those halcyon P-M (Pre-marriage) days when anything seemed possible and usually was :)) Now in the other PM days (post marriage) aches and pains get in the way of everything, I have to agree with the wife when she says she took on a real "headache" when she married me, the blasted thing has lasted 35 years and still no sign of going away, Oh well dreaming over, back to the workshop, oh how the mighty have fallen
Best regards
Keith
Reply to
jontom_1uk

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