Bridgeport Promill knee replacement help

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Bob5150
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Joined: Fri May 11, 2018 11:08 pm

Bridgeport Promill knee replacement help

Post by Bob5150 » Sat May 12, 2018 6:17 pm

I just purchased a Bridgeport Promill and need some help or direction to go on how to replace the knee. Any help or advise appreciated.

John Evans
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Re: Bridgeport Promill knee replacement help

Post by John Evans » Sat May 12, 2018 10:14 pm

Not enough info on what you are trying to do. pictures would help . BP promill? not familiar with that ,CMC conversion of some kind?
www.chaski.com

Bob5150
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Re: Bridgeport Promill knee replacement help

Post by Bob5150 » Sun May 13, 2018 11:09 pm

It's a knock off brideport...elevation pinion gear for the knee is out of it. I want to know how to put it back in. It is being delivered in a week so I can send pictures then. Definitely appreciate any help. Thank you

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ctwo
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Re: Bridgeport Promill knee replacement help

Post by ctwo » Mon May 14, 2018 2:07 pm

well, this manual has exploded parts diagrams for the hardinge/bridgeport series 1 mill.

http://hardingeus.com/usr/pdf/Knee%20Mi ... 02Plus.pdf
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Bill Shields
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Re: Bridgeport Promill knee replacement help

Post by Bill Shields » Sun Jun 17, 2018 6:31 am

around the knee crank, there is a pattern of 4 bolts.

remove these bolts and the cover they hold and out will come the shaft to which the gear (should be) attached.

reverse process to install gear.

suggest you check the mating gear and replace as needed.

block knee with cribbing to hold in place since you will probably have to manually turn the knee screw DOWN to get the gear(s) in / out and don't want the knee dropping on you during the process.

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