How To Make An Old 3 Jaw Chuck Accurate Again – Basic Machine Shop Maintenance

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The 3 jaw chuck is a staple of the machine shop. Whether it is a manual lathe or CNC, the 3 jaw chuck is essential to daily operation. But what happens when the chuck no longer runs true? Most shops will just replace it, but I have found most just need a good cleaning.

In this video, I tear down a 19.5″ Bison chuck I bought for one repeat job. It arrived and looked great, but upon doing the job, it was not great. This thing was so full of crap, that it hardly turned. Watch as I tear it down to expose a massive and stinky pile of ugly grease. Hidden in the grease was chips causing the problems. Not only does the chip cause difficulty tightening or loosening the chuck, but it will cause the jaws to be off. Thus causing run out!

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โœ… About Topper Machine LLC.

Welcome to Topper Machine LLC! Iโ€™m Josh Topper, owner of Topper Machine LLC, a Spooner, WI manual machining, welding, and fabricating shop. I Specialize in repairs and custom one-off jobs, and I work on larger parts requiring precision and careful setup. This channel combines professional craftsmanship with personal projects, like restoring my steam traction engine and dragline crane and running my homemade sawmill.

With years of industry experienceโ€”from high school machining to leading OEM productionโ€”I bring expertise to every project. You’re in the right place if you love skilled craftsmanship. Stay tuned for the art of manual machining, unique shop services, and exciting projects.

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๐Ÿ”Ž Related Phrases:
3 jaw chuck, 4 jaw chuck, machine shop, shop maintenance, shop upgrades, cnc Machine repair, cnc maintenance, lathe maintenance, lathe repair, machine repair, Heavy Equipment Restoration Tips, Industrial Maintenance Techniques, Restoring Old Machinery Tutorial, Machine Shop Repair Projects, Saving Money On Industrial Parts, Machine Shop Money Saving Tips,

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