开云体育

  1. DaltonLathes
  2. Topics

7 inch dalton lathe

 

Can anyone tell how to remove the gear on the head stock. Or should I say disassemble?it? Any information?would be appreciated

Regards?
Jean
Glen Linscheid
 

The guy to ask is Dennis Turk, he's the "guru". I've taken bull bears off lathes before and you need to remove the spindle of course by removing the two bearing caps, then the little gear at the left hand end comes off, then the cone pulley, and then the bull gear should be a light press over a key in the bull gear seat of the spindle. Since I haven't had one off a Dalton you'd want to make sure of any setscrews or other restraint and remove them, and to fully support the lower part of the gear's hub and press down against the spindle nose with a press, and I'd also
find or make a spindle protector for the spindle thread if you don't have one, it could be just a piece of aluminum plate. That would help spread the force over a larger area to avoid distorting the spindle end.
?If as few hundred pounds of press doesn't move it I'd dose the joint where the gear presses to the shaft with Kroil and leave is sit overnight, then heat the gear with a soft flame, like a propane torch, to maybe 400-500 degrees and try again.
?You should be able to see where there is a key seat between the gear and the shaft, and you want to allow clearance for that to pass through your support when you press the shaft out. I've mangled a few keys in my life because I didn't take care for that.
?
?But perhaps Dennis will chime in here with the true dope on all this. I know on mine at least the small gear is fixed to the spindle with small setscrews tapped longitudinally between the gear bore and the spindle, not axially as is normal practice, so you may want to check for that before removing the gear, and I think the small gear is screwed onto the spindle end with fine threads. Make sure there aren't set screws under setscrews, as sometimes they are used to lock the torque bearing setscrews.
Glen
 

Thank you Glen

I appreciate your input . I'm not a real big computer guru nor a social butter fly when it comes to computers but took interest in this site two years ago when I come across a barn find and it was my grandson that showed me about this site when he looked up the lathe that I had found, I'm getting down to the nitty-gritty having this thing competed. The gear that I'm trying to get off is the small gear to the left then that would allow me to remove the the treaded collar. The small gear all the way to the left has a set screw but it also looks like a key way. That has me stumped, I'm trying to get to the next gear just after the bearing off for repair or replacement.

Thank you
Jean



On Thu, Jun 23, 2022, 3:16 PM Glen Linscheid <partsproduction@...> wrote:
The guy to ask is Dennis Turk, he's the "guru". I've taken bull bears off lathes before and you need to remove the spindle of course by removing the two bearing caps, then the little gear at the left hand end comes off, then the cone pulley, and then the bull gear should be a light press over a key in the bull gear seat of the spindle. Since I haven't had one off a Dalton you'd want to make sure of any setscrews or other restraint and remove them, and to fully support the lower part of the gear's hub and press down against the spindle nose with a press, and I'd also
find or make a spindle protector for the spindle thread if you don't have one, it could be just a piece of aluminum plate. That would help spread the force over a larger area to avoid distorting the spindle end.
?If as few hundred pounds of press doesn't move it I'd dose the joint where the gear presses to the shaft with Kroil and leave is sit overnight, then heat the gear with a soft flame, like a propane torch, to maybe 400-500 degrees and try again.
?You should be able to see where there is a key seat between the gear and the shaft, and you want to allow clearance for that to pass through your support when you press the shaft out. I've mangled a few keys in my life because I didn't take care for that.
?
?But perhaps Dennis will chime in here with the true dope on all this. I know on mine at least the small gear is fixed to the spindle with small setscrews tapped longitudinally between the gear bore and the spindle, not axially as is normal practice, so you may want to check for that before removing the gear, and I think the small gear is screwed onto the spindle end with fine threads. Make sure there aren't set screws under setscrews, as sometimes they are used to lock the torque bearing setscrews.
Glen

20220623_160840.jpg

Glen Linscheid
 

I looked at mine and it's identical to yours. I think the setscrew (s) need to be removed and then you can pull the gear off with a gear puller. If you don't have one this is the kind to buy () IMO because you may not have much room to get the other type back into the limited space. I find far fewer uses for the three armed pullers myself, but others may disagree.
?You may find the amount of force needed is less if you squirt penetrating oil on it and in the screw hole, and again it may be easier too if you heat it a few hundred degrees, standard stuff.
 

Thankyou
Definitely been a head scratcher,? I may have a puller that might work. I've been using that Kroll penitrating oil through out this hole project along with vinegar, carbonic acid, kerosene. Not to mention elbow grease will steel wool. When I get a chance I'll look up Denis text message address. Thankyou for the advice , pull it is

Jean

On Thu, Jun 23, 2022, 5:19 PM Glen Linscheid <partsproduction@...> wrote:
I looked at mine and it's identical to yours. I think the setscrew (s) need to be removed and then you can pull the gear off with a gear puller. If you don't have one this is the kind to buy () IMO because you may not have much room to get the other type back into the limited space. I find far fewer uses for the three armed pullers myself, but others may disagree.
?You may find the amount of force needed is less if you squirt penetrating oil on it and in the screw hole, and again it may be easier too if you heat it a few hundred degrees, standard stuff.

1 - 5 of 5