South Bend dissembly question

Ultradog MN

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I am doing some disassembly on a SB 7" shaper.
Mostly I just wast to clean 60? Years of crud off and out of it, polish the bright parts, insure the oil pump is working and clean it up a bit.
I am stumped on how to remove the handles on it.
There are 3 of these handles on it.
I downloaded the manual but still don't understand.
It looks like to remove the handle #42 you take out the pin #43 and the crank retaining nut # 44.
Does the pin unscrew? One of them looks like someone went at it with hacksaw.
I don't quite know how it is assembled.
Thanks for any help.
Jerry
 

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If I'm not mistaken #43 is a key insert and the handle pulls off after you remove #44 nut
A bit of light oil would be helpful if it's really tight- or liquid wrench
 
Last edited:
If I'm not mistaken #43 is a key insert and the handle pulls off after you remove #44 nut
A bit of light oil would be helpful if it's really tight- or liquid wrench

Sorry if I'm dense here.
What is a key insert?
How do you remove it?
 
Would it just be a short key stub in a keyway that stops the handle crank from rotating on the shaft? Once you remove the end nut (#44) both crank and key would slide off?
 
Like a half-moon shaped woodruff key but in this case just a small straight piece of stock with a square section- fitted into a groove in the shaft
and the handle to lock them together
I don't know precisely what you have but it has to be similar
 
Once the slotted end screw is removed (part #44), the handle should just slide off. After 60 years, "sliding off" is probably not going to happen, so you may have to use a gear puller to remove the handle. The key (part #43) is what keeps the handle from spinning on the shaft, so once the handle is off, the key can be removed.
 
The nut, number 44, unscrews first. The tool for that looks like a giant flat screwdriver blade, with a notch in the middle to make clearance for the threaded shaft, visible in the center of the slot. The pin, number 43, will be visible at this time. You'll see the round outside end of it. Leave it be.

The handle, number 42, then pulls straight off. It will (or should) be pretty snug, and may need some (respectful) encouragement.

Back to the pin, number 43. This is a round pin, but it acts no differently than a standard keyway in a standard motor shaft. It's just slid in there to lock the relative position of the two parts. As you remove the nut, no worries. As you remove the handle, keep an eye on that pin. Odds are it'll stay on the shaft or on the handle, but don't loose it.
 
Thanks fellas!
I have not seen this type of retainer before.
I will modify a junky old screwdriver I have to fit the nut.
The handles in this machine are just steel (not chromed) so I will use a propane torch to heat it a bit.
There was a lot of thought and care went into these little machines.
It will mostly just be an ornament in my shop but it will be a well made ornament at that.
 
A couple of photos - for posterity.
Long ago, I learned to call this round pin type of key a Dutch keyway.
 

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I have some of the larger, cast iron pieces cleaned up and painted now.
While cleaning a bit of excess paint off of the cross slide I discovered how some of it was machined at the factory
Those of you who have run a shaper know how distinctive of a finish they leave - all those parallel lines are unmistakable.
Some of the parts and pieces of these little shapers were machined by...
A shaper.
Old school - and kinda cool.
 

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