Author Topic: chuck refit  (Read 1843 times)

Offline krv3000

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chuck refit
« on: December 25, 2013, 03:01:01 PM »
hi SOS for the pitcher quality must have bin a bad day for me right i got this chuck of the bay for spears or reaper the comment on it was the chuck is open all the way can not get it to close so any way i won the bid 5.79 with post well he did not have a go with mole grips or the vice to try to get it to work all i did to free it off was give it a smack with a raw hide hammer and it started to work so as per with me its has to cum a part no pics of this bit but removed the bottom ring by removing the screw then i put a screwdriver in the slot and this widened the ring to remove it then put the bottom of the chuck in me 4 jaw chuck with sum copper shim to protect the bode then with me oil filter removing strap slackened off the top of the chuck then removed it to work on it at the bench it all just unscrews on the bottom part of the chuck thee is ball Bering's be very cerfull on removing this bit as you don't want to be loosing any of them a part from sum rust witch i think was the problem all was OK i cleaned the bearings in lamp oil IE paraffin then put them in a bag for safe keeping then cleaned the rest of the chuck up i re pact the Bering's using graphite grease then reassembled the remainder with Chane loob but not on the jaws them selves right pics



Offline Anzaniste

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Re: chuck refit
« Reply #1 on: December 28, 2013, 02:30:41 AM »
I have several of these Asian keyless chucks and they all suffer the same problem - they are very stiff to operate.
I mentioned this to the guy from RDG where I had bought at least one of them. He wasnt surprised and said to free them off all you had to do was loosen the collar off at the back end of the chuck by undoing the clamping grub screw and backing off the collar slightly. It worked a treat. Great!
However - I have got one where the collar at the back does not have a clamping grub screw. What do I do?
I don't think corrosion is the cause of the stiffness as all of my chucks live in conditions where corrosion is not a problem.
Scrooby, 1 mile south of Gods own County.

Offline krv3000

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Re: chuck refit
« Reply #2 on: December 28, 2013, 05:26:04 PM »
hi well a pic may hellp but if its the type that im thinking off i will post a pic the botom parte is prest on