Mckee Snowlander 320 Parts manual

[MinnesotaEric]

I used the word "pound" for lack of a better term. What happens with my method is that the end of the set screw gets pushed into the shaft and therefore loosens the set screw. This will work on the gear too as long as you don't "pound" the gear hard enough to crack it. All you want to do is push the set screw into the shaft a bit. "Pounding" from the end if you have room loosens the threads of the set screw if they are slightly seized which is common.

Many farmers in this area have thanked me for developing this method of removing set screws. It makes changing a bearing a few minutes job instead of getting out the cutting torch or cut off saw so that you can remove the bearing. Quite often the lock collar can be reused after doing the punch and hammer method on set screws.

We call the technique of wailing on the rusty bolt or set screw, "shocking." You shock the rusty bit to break the rust. If it doesn't come loose, then heat and cold water to break the rust. Repeat as necessary avoiding the cutting torch or drill.

 

[pmsmechanic]

Thank you Eric for setting me straight on this . I learned something again.

It's interesting how everyone kind of has their own favourite way of doing things. You use heat and cold water which I can see working quite well. I like to use heat and a wax candle which also works.

 

[Dave M7040]

Has anyone every tried liquid nitrogen in these rust frozen situations?
I saw a video of it being used to break a padlock.

Warm up the collar or gear just a bit and then a drop or two of liquid nitrogen on the set screw.
It is -321 F as it boils at room temp.

That should shock the rust!

Dave M7040

 

[MinnesotaEric]

Thank you Eric for setting me straight on this . I learned something again.

It's interesting how everyone kind of has their own favourite way of doing things. You use heat and cold water which I can see working quite well. I like to use heat and a wax candle which also works.

I have not worked as an auto tech for years now, but in a shop the torch is right there for heating as is a hose. If repeated attempts to heat and cold don't work or the fastener striped out the heating tip is swapped out for a cutting torch. Exhaust systems we skipped the water and went straight to cutting except on headers.