Chipper Mackissic chipper shredder

   / Mackissic chipper shredder #1  

professor

Gold Member
Joined
Apr 13, 2002
Messages
335
Location
jackson tn
Tractor
Allis Chalmers 416S John Deere LX280, John Deere Z225 zero turn yanmar 1401 , Oliver 550 Special, Oliver 75 Lawn Tractor, New Holland 3930 4WD, Mitsubishi BDF2 Dozer
I am looking at a model TPH 122 Mackissic 3 point chipper shredder. I will be using it on a Yanmar 1401. I have found to dealers that carry this model one being Northern and the other West Power Tools. Both price the shredder at approximately 1650 however West ships free. I am wondering if any of you have had experience with either of these companies good or bad?
 
   / Mackissic chipper shredder #2  
I have a Mac TPH-122. Good machine, better than my old TroyBilt chipper/shredder for hammer wear (essentially none so far, 50% more shredder hammers than the TroyBilt had). It requires a different technique to change out or to remove the chipper blade. Get yourself a tiny tube of the blue thread setter stuff to put on the screw threads. Just need a drop of it on each one.

There are some forums members who have bought theirs from Northern. I bought mine from the local JD dealer for the $1650 you mentioned. It was discounted $100 from what they usually sold it for because they'd used it about an hour to demo it for the sales people. From the dealer, it came with the fitted PTO. Think you'll have to get your own PTO when buying from others.

Bought a new chipper blade recently from the dealer: $57. Found out where to send my old one for sharpening but haven't done it yet. Sharpened it once myself on the side of my big grinder wheel. There's a thread that I started where someone mentioned and showed pictures of sharpening it on a rig holding an angle grinder.

Ralph
 
   / Mackissic chipper shredder #3  
If you do a search on Mackissic on TBN, you'll find a few reviews (including mine). The brief version is that it's a high quality, hard-working chipper/shredder. Highly recommended.

Cliff
 
   / Mackissic chipper shredder #4  
Cliff,

A friend of mine has a MacKissic with the engine on it. He said his hammers are rounded off on the leading corner. At the dealer the other day, while picking up a Stihl air cleaner, I was looking at one of their motorized MacKissics there. The sales person asked if he could help me. I saw it was Karl, one of their more knowledgable ones. So, I said that I was looking to see how you remove the hammers because MacKissic has never told me that when I asked them. (They did send me a manual, which doesn't explain this in it.)

Karl explained it to me. He said you remove the input pulley. Then you unbolt the housing over the chipper blade and flywheel, and pull the whole works out of the bearing on the input end. Then you have access to the hammers by driving out the roll pins to remove the shafts.

Is it the same procedure on the PTO-driven ones? I think that you said you'd done it on yours. Karl said his MacKissic is several years old and still has no wear on the hammers.

Ralph
 
   / Mackissic chipper shredder #5  
To swap the shredder hammers, I took the top off (6 bolts, I think). This provides suficient access to the guts. Then I punched out the roll pin on the end of the 4 main bars that hold the hammers.

There is a small round hole (perhaps 2.5 inches) that's covered by a removable metal disk which allows the main bars to be pulled out through the housing as you rotate the shredder bars to aligh with the hole.

Once you realize that the top comes off fairly easily and you find the hole the bars slide out through, the reset should be obvious by inspection. I sent e-mail to Mackissic in PA to ask them about this, and they called me back to explain it to me.

On a different note, I had some carbide saw blades sharpened and decided to get the chipper blade reground and shaprened professionally while I was at it. They did it for $5, and it came out very nice. I like to get these things reground once in a while to get the exact angle back, remove and nicks, and to remove the areas softened by repeated heating and cooling. I can do this myself, but it's a lot of effort, and I can't do flat ground very effectively -- chipper blades should not be hollow ground on a round wheel. The blade didn't really need the regrinding yet, but I happened to be taking the other baldes in, and I wanted to see how good a job they did. It should be good for several years on hand sharpening now.

Cliff
 
   / Mackissic chipper shredder #6  
I bought the tp122 from West. Great outfit to deal with. I live in Wa state so I really made out with the free shipping. They even made sure it was on a truck with a tail lift. I've had the chipper about 18 months now. Works great even on a small tractor. I really like this chipper
 

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   / Mackissic chipper shredder #7  
Cliff,

My friend with the motor-driven Mac followed your instructions for rotating the hammers. He said it "was a piece of cake".

The sales guy at the JD dealership was all wet. I gotta look at mine and the motor one in the dealership to locate that knockout plug.

Ralph
 
   / Mackissic chipper shredder #8  
RalphVa said:
Cliff,

My friend with the motor-driven Mac followed your instructions for rotating the hammers. He said it "was a piece of cake".

The sales guy at the JD dealership was all wet. I gotta look at mine and the motor one in the dealership to locate that knockout plug.

Ralph

Glad to hear the instructions worked.

On mine, it's not a knockout plug, its a round plate covering the hole with a screw at the edge so you can loosen the screw and rotate the plate out of the way. The hole is on the side facing the PTO and to the left side of the tractor.

Good luck.

Cliff
 
   / Mackissic chipper shredder #9  
Ralph,
Looking again, you need to remove the belt cover. The hatch is mostly hidden under that.

Hope that helps.

Cliff
 
   / Mackissic chipper shredder #10  
Oh, underneath the belt cover. That's why I haven't found it. It must be there on the engine-driven ones, too. My friend didn't mention where he found his hole to remove the shafts. Guess that means you remove the roll pins at the top, rotate the shaft down to where the screen is removed and extract the shaft there.

Forgot to mention. My changing out the chipper blade is "a piece of cake" now. You access it by removing 2 screws from a little hatch on the rear of the machine. Got the proper allen wrench that fits on a socket handle, not one of those el-cheapo L-shaped ones, clean out the allen depression with a pin or small screwdriver or air pressure and give the socket a tap to seat it good. Hold onto the screws and blade to keep them from dropping into the housing. Then use just a small dab of the blue Loctite and smear it a bit on the threads and surface of the head when putting the screws back in. I let mine sit overnight before using it again. Probably only needs to set an hour or so. Instructions on the Loctite? Who reads them? I've just read enough to know to avoid the red stuff.

Still haven't taken my old chipper blade to that place yet to get it sharpened.

Ralph
 
 
 
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