Hi Guys
Several questions if I may
I am just starting to clean up a new to me 11" logan lathe (model 957 - cabinet model with motor underneath)
I am hoping to take off all of the change gears, clean, replace bearings/bushings and reassemble
Same for headstock
This thread is just the reverse gear/change gear assembly
as you can see in this picture, one of the idler gears is off...it had a broken tooth and so I started with it - it comes off very easily with a nut behind and then pulls out - the gear has an oilite bushing and it slides snugly over a pinion stud
(I know i said headstock for later, but I am using the spindle gear as the first gear on the drive train)
for the spindle gear, is the threading on that part of the spindle left or right? - assuming right, but before I start cranking on it, figured i'd ask
the collar that is outboard of the spindle gear...that just needs a spanner wrench to unscrew? - i did not see any other set screw, key, etc - is that correct?
jumping back down to below the idler gears is a coupled set of two gears, the bottom one is called the reverse gear and the one that sits on top of it is called the stud gear
as per the picture and the parts diagram, there is a retaining nut on this assembly - i have removed this - if i had to guess, it looks like the stud gear is pressed on to the spacer (part 261), which spacer is pressed on to the reverse gear shaft (part 138), which has a woodruff key in it - is that right?
if so, there might be enough room to get a small puller behind the stud gear and pull it off
but the reverse gear is flush to the feedlever - there is no way to get anything behind it to pull it off
it looks like the lever itself is pressed on to the reverse gear shaft - so is the idea to take the lever out and the stud and reverse gears come with it?
also, where does the reverse gear shaft terminate? - when i look in the headstock i cannot see its terminus (although there is a cast piece above where all of that is so maybe it is hidden under that?)
moving on to the change gear assembly:
unfortunately, the change gear assembly parts diagram is not nearly as helpful as the reverse gear assembly
the standalone gear you see pictures of is part LA-213 and 214 - it is a coupled gear set of 2 gears one 48T and the other is a ?? T
it is not clear to me how to dissasemble this
the hex head cap screw pushes through the middle of that assembly and then bolts through the square nut that sits on the other side of the banjo bracket - once that is off, there is the nut below it that is still on in the pictures - it is threaded on but there is no way to gain purchase on the gear stud to apply torque to the nut (that i can figure out)?? so how would you disassemble it?
on the final change gear, it is also retained by a nut - but the shaft it is on does have a center machined out and so i assume one is to pull this off with a puller
it is not clear how that shaft attaches to the banjo (or change gear) bracket
it is also not clear if once i get that last gear off, can i simply slide the banjo bracket off (after loosening the retaining nut and bolt)?
Several questions if I may
I am just starting to clean up a new to me 11" logan lathe (model 957 - cabinet model with motor underneath)
I am hoping to take off all of the change gears, clean, replace bearings/bushings and reassemble
Same for headstock
This thread is just the reverse gear/change gear assembly
as you can see in this picture, one of the idler gears is off...it had a broken tooth and so I started with it - it comes off very easily with a nut behind and then pulls out - the gear has an oilite bushing and it slides snugly over a pinion stud
(I know i said headstock for later, but I am using the spindle gear as the first gear on the drive train)
for the spindle gear, is the threading on that part of the spindle left or right? - assuming right, but before I start cranking on it, figured i'd ask
the collar that is outboard of the spindle gear...that just needs a spanner wrench to unscrew? - i did not see any other set screw, key, etc - is that correct?
jumping back down to below the idler gears is a coupled set of two gears, the bottom one is called the reverse gear and the one that sits on top of it is called the stud gear
as per the picture and the parts diagram, there is a retaining nut on this assembly - i have removed this - if i had to guess, it looks like the stud gear is pressed on to the spacer (part 261), which spacer is pressed on to the reverse gear shaft (part 138), which has a woodruff key in it - is that right?
if so, there might be enough room to get a small puller behind the stud gear and pull it off
but the reverse gear is flush to the feedlever - there is no way to get anything behind it to pull it off
it looks like the lever itself is pressed on to the reverse gear shaft - so is the idea to take the lever out and the stud and reverse gears come with it?
also, where does the reverse gear shaft terminate? - when i look in the headstock i cannot see its terminus (although there is a cast piece above where all of that is so maybe it is hidden under that?)
moving on to the change gear assembly:
unfortunately, the change gear assembly parts diagram is not nearly as helpful as the reverse gear assembly
the standalone gear you see pictures of is part LA-213 and 214 - it is a coupled gear set of 2 gears one 48T and the other is a ?? T
it is not clear to me how to dissasemble this
the hex head cap screw pushes through the middle of that assembly and then bolts through the square nut that sits on the other side of the banjo bracket - once that is off, there is the nut below it that is still on in the pictures - it is threaded on but there is no way to gain purchase on the gear stud to apply torque to the nut (that i can figure out)?? so how would you disassemble it?
on the final change gear, it is also retained by a nut - but the shaft it is on does have a center machined out and so i assume one is to pull this off with a puller
it is not clear how that shaft attaches to the banjo (or change gear) bracket
it is also not clear if once i get that last gear off, can i simply slide the banjo bracket off (after loosening the retaining nut and bolt)?
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