- Thread starter mark roberts
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mark roberts
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Im not good at electrickery so until I find someone who can do some testing I thought I would check the motor out.
The shaft still doesn't turn without the reduction gear so something else is jamming it.
The bearing at the bottom is seized
The shaft still doesn't turn without the reduction gear so something else is jamming it.
The bearing at the bottom is seized
Pete.
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OK so that is bad news. You're going to have to strip off the entire apron and clean it out. You'll probably find seized feed clutches, rusted out bearings and rusty gears.
This mess is caused by using water-based coolant on the HLV which Hardinge say you should not do. They are meant for oil based coolant because the water based stuff gets all into the apron and rots everything to bits. I had to do the same with mine, theough mine hadn't got nto the feed motor like yours has.
Have you looked in the coolant tank yet? The inside of mine had a saucepan full of that stuff and the pump impellor was rotted right away.
This mess is caused by using water-based coolant on the HLV which Hardinge say you should not do. They are meant for oil based coolant because the water based stuff gets all into the apron and rots everything to bits. I had to do the same with mine, theough mine hadn't got nto the feed motor like yours has.
Have you looked in the coolant tank yet? The inside of mine had a saucepan full of that stuff and the pump impellor was rotted right away.
Roger Williams
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Had one of these a few years ago , lovely lathe . A clever bloke in the US worked out you could use Myford changewheels on the bracket , with the selector at the "Out " position , to cut just about any metric thread , which I did on my HLVH many times. My lathe was in a **** state when purchased . You picked up an absolute bargain there in my opinion . Heres mine before I sold it .
Roger Williams
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Pete, you mentioned Bill Todd , he inspired me to work on my Hardinge with the posts about his . I believe he somehow rewired his motor to run off a VFD , which I didnt think was possible with a 2 speed unit , I might have seen a video he did about it a few years ago. Hope hes still around.
Roger Williams
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Wished I had known that , because of trouble I had with a phase converter , but bought a secondhand Boost Energy one from a friend of Paul Sopers at ZMT , perfect. Pauls retired now which is a shame because he would have been a great help to Mark.
mark roberts
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Hey Pete how is this base of the top slide secured. I stripped the feed motor cleaned and reassembled, Still doesn't work on the lathe but I have no way of bench testing it.
Pete.
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You loosen it off with the allen key then use a punch in that little hole (which shouldn't be there, but always is) to gently tap it back out. The base is almost certainy bent and will need scraping flat on the bottom and on the ways The reason for the little hole is because the bases bend then won't stay put so people crank on the clamp bolt to try to stop them turning then the bolt shears. The hole is drilled to tap the broken end out.
mark roberts
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I started taking stuff to bits to clean, the screw and nut has just the tiniest amount of play. Pete does the plastic dials come off easily or are they bonded on.
Is there anyone local to durham that has a surface grinder and would be willing to clean up the sides and top of the slide.
Why would you have the gib adjuster with a nut that has a hole all the way through to the ways.
Is there anyone local to durham that has a surface grinder and would be willing to clean up the sides and top of the slide.
Why would you have the gib adjuster with a nut that has a hole all the way through to the ways.
Pete.
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The gib adjuster has a hole right throughbecause it's supposed to have two of them stacked, one for adjusting the gib and another for locking the first.
If you're going to surface grind the sides make sure that you clock them in carefully. tHe sides of the slide are supposed to be exactly parallel to the working dovetail so that you can use the sides for setting up.
If you're going to surface grind the sides make sure that you clock them in carefully. tHe sides of the slide are supposed to be exactly parallel to the working dovetail so that you can use the sides for setting up.
mark roberts
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I messed up, I was taking the traversing handwheel off the carriage. Removed the grub screw put a puller on and started pulling. It moved a bit then stopped gave it a good wrench and nothing. Thought I'd check the hole again and realized theres another grub screw.
Statics have a minimum motor run size as well as a maximum motor start/run.
If your carriage motor is less than maybe 1hp (which it most likely is) then without having another, larger motor running first - your feed/carriage motor might well not work, and can be damaged trying to run it alone.
Thought I'd mention it - just in case.
If your carriage motor is less than maybe 1hp (which it most likely is) then without having another, larger motor running first - your feed/carriage motor might well not work, and can be damaged trying to run it alone.
Thought I'd mention it - just in case.
mark roberts
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Got the apron off and the bearings are goosed and one of the clutch plates has dropped to bits. A couple of the bearings have a groove around the outside for a retaining ring.
Pete it looks like this is supposed to have a tapered pin, You wouldn't happen to have a list of the bearings that is needed
Pete it looks like this is supposed to have a tapered pin, You wouldn't happen to have a list of the bearings that is needed
mark roberts
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It has quite a complicated oiling system, luckily theres a threaded hole to jack it out of the hole.
I dont think thats been off ever
That little plunger sends oil to a manafold type thing which in turn goes to the ways via brass tubes.
The ways are covered with some kind of synthetic sheet, does that mean this machine has been reworked at some point
I dont think thats been off ever
That little plunger sends oil to a manafold type thing which in turn goes to the ways via brass tubes.
The ways are covered with some kind of synthetic sheet, does that mean this machine has been reworked at some point
