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Thread: For the hydraulisists
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17th June 2019, 09:20 PM #1
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C & J 4jaw chuck.
I have dug out of my stash a C & J ( Crowe & Jorgensen) Made in Australia 4 jaw chuck.
Its a 4 1/2” CO45#.
I don’t remember where this came from, I have the chuck key.
It was full of old grease/oil and the jaws where very hard to wind out.
I don’t know if it’s ever been used, had no backing plate.
Ive cleaned it up in thinners, oiled it and tried the jaws.
They are still too hard to move.
Looking at the back the screw retainers have an internal thread.
Would I be correct in assuming this would be for removal of them so I can try the jaws for fit.
H.
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17th June 2019, 10:40 PM #2
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For the hydraulisists
For those who tinker with hydraulics. This is why seals should be replaced after a while.
IMG_0559.JPG
This is the piston from a bit of kit that was stripped down today as there was a suspicion that it was bypassing.
Michael
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IMG_0559.JPG (73.3 KB)
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