jaygonsalves
off to a rocking start
Member since February 2018
Posts: 5
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Post by jaygonsalves on Feb 21, 2018 15:53:32 GMT -5
I'm updating the wheels on an old but solid, Frantom cab station I bought several years ago. As I began the disassembly, it became clear that I might need to pull the bearings off the shaft to remove and replace the wheels. If that is the case, do I need to use a special puller to get them off without causing damage. Thanks! Jay
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zarguy
fully equipped rock polisher
Cedar City, Utah - rockhound heaven!
Member since December 2005
Posts: 1,791
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Post by zarguy on Feb 21, 2018 17:23:04 GMT -5
Spray PB Blaster on & let it soak for a few days. Then try a hydraulic press. It's safer than pounding on it with a hammer. Harbor Freight has one for $130 - about $105 with 20% off coupon. Lynn
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jaygonsalves
off to a rocking start
Member since February 2018
Posts: 5
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Post by jaygonsalves on Feb 21, 2018 17:36:01 GMT -5
Spray PB Blaster on & let it soak for a few days. Then try a hydraulic press. It's safer than pounding on it with a hammer. Harbor Freight has one for $130 - about $105 with 20% off coupon. Lynn Thanks! Guess I didn't realize that changing the grinding wheels on this beast would be such a difficult process! Change them, I must if I want to use it, tho. Thanks for the info, Jay
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jaygonsalves
off to a rocking start
Member since February 2018
Posts: 5
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Post by jaygonsalves on Feb 21, 2018 19:05:11 GMT -5
Spray PB Blaster on & let it soak for a few days. Then try a hydraulic press. It's safer than pounding on it with a hammer. Harbor Freight has one for $130 - about $105 with 20% off coupon. Lynn Thanks! Guess I didn't realize that changing the grinding wheels on this beast would be such a difficult process! Change them, I must if I want to use it, tho. Thanks for the info, Jay Thanks for the help, a little oil, a little waiting and a little torque and everything slipped off. Ready for new wheels! Thanks again.
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zarguy
fully equipped rock polisher
Cedar City, Utah - rockhound heaven!
Member since December 2005
Posts: 1,791
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Post by zarguy on Feb 21, 2018 21:17:30 GMT -5
Thanks! Guess I didn't realize that changing the grinding wheels on this beast would be such a difficult process! Change them, I must if I want to use it, tho. Thanks for the info, Jay Thanks for the help, a little oil, a little waiting and a little torque and everything slipped off. Ready for new wheels! Thanks again. That was quick. I'm jealous because I've had to wait days & use lots of force to get bearings off old rusted equip. Let's see pix of the machine! Lynn
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jaygonsalves
off to a rocking start
Member since February 2018
Posts: 5
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Post by jaygonsalves on Feb 22, 2018 10:50:39 GMT -5
Thanks for the help, a little oil, a little waiting and a little torque and everything slipped off. Ready for new wheels! Thanks again. That was quick. I'm jealous because I've had to wait days & use lots of force to get bearings off old rusted equip. Let's see pix of the machine! Lynn Hi, Lynn The machine was not totally rusty and seized, just old and very dried out. Once the wd-40 penetrated the gunk on the shaft, thru the end bushing, all the wheels and spacers became pretty easy to slip off.
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Post by johnjsgems on Feb 22, 2018 12:14:27 GMT -5
Best investment when removing bearings is a roll of plumbers sand cloth. Available at any hardware/Home Depot. Polish all exposed shaft surfaces with WD40 and sand cloth. The PB Blaster and other rust buster type compounds work better. Remove set screws and squirt in holes. If the bearings have one set screw and a dimple, remove set screw and tap at dimple opposite direction of rotation. Once the collar comes off you can tap bearing off (carefully). If two set screws, collar is part of bearing. Sometimes better to tap other way, clean surface under bearing then tap off. Use a file and smooth all set screw dings. Shaft stock is very soft so easy to file out dings. If you are ancient like me take a picture before disassembly. I sometimes disassemble a unit and run out of time before a show trip. Weeks (or months) later it can be hard to remember exactly what spacers go where, etc.
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jaygonsalves
off to a rocking start
Member since February 2018
Posts: 5
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Post by jaygonsalves on Feb 24, 2018 20:33:35 GMT -5
That was quick. I'm jealous because I've had to wait days & use lots of force to get bearings off old rusted equip. Let's see pix of the machine! Lynn Hi, Lynn The machine was not totally rusty and seized, just old and very dried out. Once the wd-40 penetrated the gunk on the shaft, thru the end bushing, all the wheels and spacers became pretty easy to slip off. I put the old Frantom in service today. Thanks for the info and encouragement! Runs like new and adding the third wheel and dripper makes it a very useful station for my purposes.
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