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Switching knives on a shredder


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#1 shorty ONLINE  

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Posted October 21, 2016 - 05:32 AM

Last night I was trying to figure out how to switch the knives on a Mckissic style shredder. Anyone ever do this? So far it looks to me like I have to pull the shaft to get the whole carrier out. In order to get to the pins.
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#2 boyscout862 ONLINE  

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Posted October 21, 2016 - 06:03 AM

I had to change the knives on a chipper/shredder many years ago. As I recall the screen underneath came off easily and then the blades were easy to access. I drained the engine oil and gas and worked on the machine upside down. I also learned that I could just turn the knives 180* to get new sharp surfaces. Good Luck, Rick
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#3 chieffan ONLINE  

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Posted October 21, 2016 - 07:44 AM

My Troy Built Super Tomahawk was easy.  Remove the screen, pull a cotter keym slide the rod out through a hole in the side.  Turn the knives over and put it back together.  This machine actually has 4 cutting edges as there is a hole for the rod on both ends of the hammer, very similar to the old hammer mills used to grind feed on the farm 60 years ago.


Edited by chieffan, October 21, 2016 - 07:45 AM.

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#4 Bolens 1000 ONLINE  

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Posted October 21, 2016 - 07:52 AM

You have to pull the rods through the "man hole" in the side

 

 

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#5 shorty ONLINE  

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Posted October 21, 2016 - 08:27 AM

Hmmm. Looks more intensive all the time. I have a solid frame on the bottom and no hole on the side of the pin heads.

#6 shorty ONLINE  

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Posted October 21, 2016 - 08:34 AM

My Troy Built Super Tomahawk was easy. Remove the screen, pull a cotter keym slide the rod out through a hole in the side. Turn the knives over and put it back together. This machine actually has 4 cutting edges as there is a hole for the rod on both ends of the hammer, very similar to the old hammer mills used to grind feed on the farm 60 years ago.

Exactly what I had hoped to do. Don't have a hole though.

#7 Bruce Dorsi ONLINE  

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Posted October 21, 2016 - 08:58 AM

Last night I was trying to figure out how to switch the knives on a Mckissic style shredder. Anyone ever do this? So far it looks to me like I have to pull the shaft to get the whole carrier out. In order to get to the pins.

 

 

I have a solid frame on the bottom and no hole on the side of the pin heads.

 

 

MacKissic? or MacKissic- style ??

 

Does your chipper have 2 hoppers ?

 

Some models of the MacKissic shredders did not have the holes to remove the pins.  .....Other models had the holes with a removable cover over the holes.


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#8 SimplyRad OFFLINE  

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Posted October 21, 2016 - 10:03 AM

On my Simplicity I had to remove the tube to get to the knives. Sharpened them and reinstalled them.


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#9 shorty ONLINE  

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Posted October 21, 2016 - 10:19 AM

MacKissic? or MacKissic- style ??

Does your chipper have 2 hoppers ?

Some models of the MacKissic shredders did not have the holes to remove the pins. .....Other models had the holes with a removable cover over the holes.

Single hopper and no covers on the side. I think it is Mckissic built from it's design. It is an Ariens from early 70's.

#10 shorty ONLINE  

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Posted October 21, 2016 - 02:54 PM

Going to try to remember a pic tonight. Wouldn't let me load one off of mobile today.

#11 shorty ONLINE  

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Posted October 21, 2016 - 07:48 PM

So I checked it out a bit closer tonight. I thought I would slide the bearing off on one side to get it apart. Of coarse, there is a set screw that wouldn't break loose. On second thought I don't really need to pull them that bad.
I was going to let junior paint the inside where the paint is gone. I don't want to use heat or get to abusive on the outside. The paint is fairly decent on the outside and will get a clearcoat to hold the patina.




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