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I posted this on practical machinist but figured I would try here as well. I have an older Jet BDB-1340 that I bought a while back and I'm starting to restore it a little. It was stored in a barn and verily used the ways etc. were kept oiled but nothing else was so it has some rust and some of the info on the data plates is worn off. Does anyone have one of these lathes that could share pics of the data plates so I could have new ones made? I contacted Jet and they sent me a few manuals that were of similar models but not this one. I've attached a pic so you can see the model I have.
Lincoln 350MPMillermatic 350PSyncrowave 2501969 SA200HTP Invertig 221
Reply:Cap. From what I can see from your picture it is the threading gears that are worn off... I don't have a Jet lathe but I will ask around to the guys I know that have lathes.Sent from my SM-G960U using TapatalkI haven't built anything I can't throw away. Perfection is the journey. Mac
Reply:Thanks! There is also supposed to be another plate on top of the gearbox that is removable I believe it had speeds not sure.Lincoln 350MPMillermatic 350PSyncrowave 2501969 SA200HTP Invertig 221
Reply:On this type of lathe, the quick change gears are invisible when looking at the lathe from the view in your photos. I'm sure they're fine if you look up under the apron that the levers notch onto.If you're getting into the headstock, it's most likely that the bearings will have the original numbers on them. You can cross reference them to just about any modern bearing. BUT REMEMBER THAT SPINDLE BEARINGS ARE PRECISION CLASS BEARINGS.............NOT WHEEL BEARINGS. You can put wheel bearings in the lathe, but expect considerable runout................which isn't a bad thing if you don't mind. Something on the order of a coupla thou.The dooooods at Practical Machinist are a bunch of prima donna jerks.All of the shafts are generally a form of relatively non exotic steel. They can be made by any grind shop...........although you might tie up as much in a shaft as the lathe is worth.There's some German dood that published test methods for lathes, and other machine tools................I'll try to find it. There's no point in messing with the machine if the ways are bad, or other things aren't right........................most of which might not be fixable.
Reply:Testing Machine Tools.........Georg Schlesinger. It's available for free download on the net. You can find it.
Reply:Looks like a fully enclosed, splash lubricated, headstock..........missing the lid. The back gear is probably actuated by the lever behind the headstock.
Reply:Or not
Do some pics looking down into the headstock. It's the two sight glasses that has me wondering.
Reply:
Originally Posted by farmersammm
On this type of lathe, the quick change gears are invisible when looking at the lathe from the view in your photos. I'm sure they're fine if you look up under the apron that the levers notch onto.If you're getting into the headstock, it's most likely that the bearings will have the original numbers on them. You can cross reference them to just about any modern bearing. BUT REMEMBER THAT SPINDLE BEARINGS ARE PRECISION CLASS BEARINGS.............NOT WHEEL BEARINGS. You can put wheel bearings in the lathe, but expect considerable runout................which isn't a bad thing if you don't mind. Something on the order of a coupla thou.The dooooods at Practical Machinist are a bunch of prima donna jerks.All of the shafts are generally a form of relatively non exotic steel. They can be made by any grind shop...........although you might tie up as much in a shaft as the lathe is worth.There's some German dood that published test methods for lathes, and other machine tools................I'll try to find it. There's no point in messing with the machine if the ways are bad, or other things aren't right........................most of which might not be fixable.
Reply:
Originally Posted by farmersammm
Looks like a fully enclosed, splash lubricated, headstock..........missing the lid. The back gear is probably actuated by the lever behind the headstock.
Reply:You can count revolutions of the chuck in the different gears. Put an indicator on the saddle, and see how far it travels per revolution. This ought to give you a feed rate, which also translates to a thread per inch rate. Off the top of my head, that would be the way to go about it, sans a chart.
Reply:I'll take a few more pics in the morning.Lincoln 350MPMillermatic 350PSyncrowave 2501969 SA200HTP Invertig 221
Reply:
Originally Posted by farmersammm
You can count revolutions of the chuck in the different gears. Put an indicator on the saddle, and see how far it travels per revolution. This ought to give you a feed rate, which also translates to a thread per inch rate. Off the top of my head, that would be the way to go about it, sans a chart.
Reply:You got this nailed
Reply:https://www.google.com/search?safe=s...,trex_id:Ax6AZQ
Reply:
Originally Posted by tapwelder
https://www.google.com/search?safe=s...,trex_id:Ax6AZQ
Reply:I found this pic online that shows the plate I am missing on top of the gearbox but it's too blurry to help.
Lincoln 350MPMillermatic 350PSyncrowave 2501969 SA200HTP Invertig 221
Reply:Ya know..............maybe look at the Grizzly website, and try to match your lathe with the lathes they have. The manuals are given in the description of each lathe, you can download it. They might have a pic of a chart on it.
Reply:
Originally Posted by farmersammm
Ya know..............maybe look at the Grizzly website, and try to match your lathe with the lathes they have. The manuals are given in the description of each lathe, you can download it. They might have a pic of a chart on it.
Reply:I have the same lathe, its branded Metal Max but it's exactly the same as the Jet 1340. I also have a manual I got jet to send me, I'll see if I can find the digital copy.
Sent from my SM-G930P using Tapatalk
Reply:If you get me your email I will send you the manual
Reply:
Originally Posted by chickenfarmer
If you get me your email I will send you the manual
Reply:Thanks to chickenfarmer sending me a manual that had the charts. I was able to use that info and pics to get new plates made hers's the designs in case anyone else wants to do the same. With artwork done plates are cheap.
Lincoln 350MPMillermatic 350PSyncrowave 2501969 SA200HTP Invertig 221
Reply:Cap, when you put the plates back on put a thin piece of lexan or other polycarbonate over the top and it will protect it for awhile. Jim
Reply:
Originally Posted by jmm03
Cap, when you put the plates back on put a thin piece of lexan or other polycarbonate over the top and it will protect it for awhile. Jim
Reply:Most of these belt head machines are similar. You might be able to order new decals from Jet or even Grizzly. Check this Grizzly manual for part numbers. Also the artwork may be clearer than the Jet manual.https://cdn0.grizzly.com/manuals/g9249_m.pdfThis design was very common with Taiwanese lathes but most of that production was moved to China. See this page for more details. http://www.lathes.co.uk/taiwan/
Thanks, I'll look through that manual as well. I already had replacement plates made by my local engraver just haven't picked them up yet will hopefully get them this afternoon.Lincoln 350MPMillermatic 350PSyncrowave 2501969 SA200HTP Invertig 221
Reply:If possible, I would really like a copy of this manual also.
Reply:
Originally Posted by mpa
If possible, I would really like a copy of this manual also.
Reply:Heres a parts list available on Amazon if you need one.https://www.amazon.com/GHB-1340-BDB-.../dp/B006IZ7KKOMillermatic 211Everlast 200DX Thermal Arc 181iKlutch ST80i lunchbox stick welderLincoln Weld-Pak 100Century Stick welderPowermax 30 plasma cutterHenrob 2000 torchLogan 200 lathe (60 years old)Clausing 6339 Lathe (for sale)
Reply:another manual for a similar model from Encohttps://drive.google.com/file/d/1WtX...6K2UAzmlW/viewMillermatic 211Everlast 200DX Thermal Arc 181iKlutch ST80i lunchbox stick welderLincoln Weld-Pak 100Century Stick welderPowermax 30 plasma cutterHenrob 2000 torchLogan 200 lathe (60 years old)Clausing 6339 Lathe (for sale) |
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发表于 2021-9-1 23:17:52