removing roll pins

J

John *.?-!.* cub owner

501 Club
I learned a trick for removing spring type roll pins today. I was working on the throttle of Jeff's (non mechanic neighbor) 444 today and needed to get the lower roll pin in this picture out to replace the friction disk.
444%20throttle.jpg


In addition to it being hard to get too, there appeared to be some weld gobbed around the pin, which I had to cut off with the Dremel. I tried to drive it out with a punch, but couldn't move it due to not being able to backup the shaft and keep it from sprining. I tried drilling it, but all I accomplished was dulling my drill bit. After thinking a little bit I remembered Jeff mentioning he was wondering about using an air chisel. I grabbed my air chisel and ground the punch bit that came with it down to the size of the roll pin, and the pin popped out almost as soon as I pulled the trigger. I think I will get some extra punches to grind down to pin sizes as I need them.
 
I know that.. it is still a great tip and one many of us can use. There are roll pins on different implements etc., and it is a good tip.
 
Your right Rudi, a good tip is a good tip. Thanks John for reminding me. I had used the air hammer on some at work before retirement but I had forgotten about it.

An air hammer is a great tool when used right. I almost always forget about it though. The other day I was watching the owner at the local garage hammering to no avail on a ball joint when I happened to think of the air hammer. A minute or so with it and out came the joint.
 
Now if I could just find someone that made them with assorted size punches so I didn't have to grind one down when I need a different size, because my grinding is not too exact.
 
John if I remember correctly Snap On used to have them in a few sizes, (don't remember how many though) and I would guess the other big name guys would probably have some also. Of course they're quite pricey.
 
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