Help: Mighty Mac (MacKISSIC) Wood Chipper 12p-8 Throttle

[nodtmf]

Hi All,

I have an 12p-8 wood chipper and the throttle assembly fell apart. Trying to figure out what I'm missing and how it goes together. I downloaded the User and Parts manual, but if anyone could post some pictures of the assembly I would be grateful! I'm trying to understand if when in the stop position there is an electrical stopping function (or not).

Thanks!

 

[Lake Girl]

Good luck with the repair ... lots of folks have looked at your thread but I guess no one has run across this problem. Could try contacting the manufacturer...

 

[begreen]

I would contact MacKissic support. Word is they are pretty helpful.

 

[nodtmf]

I would contact MacKissic support. Word is they are pretty helpful.

That makes sense! However, I do have it mostly together, with one linkage issue. I will tackle that today. Assuming I figure that out today, I will then post some pictures for future questions.

Sadly though, this little chipper doesn't do well for me. I use it to chip oak branches, it has enough power but the frame will torque under load and then the belt falls off. I tighten the the belt pretty tight but I still have to be careful on loading it up.

 

[Lake Girl]

Good to hear you are making headway. Pics would be good!

Possible to beef up the frame to minimize torque or just not worth it?

 

[begreen]

Is the oak dry or green? Dry wood is harder to chip.

 

[nodtmf]

Well an update.

I got it running but I did not succeed in figuring it out correctly. When all together the springs naturally pull the throttle to the open position. I couldn't figure how, when moving the lever to stop, the linkage is supposed to close the throttle valve. I went through the parts diagram and made sure I understood what each part does and the connections of the linkages and springs...such a complicated setup. 3 separate moving linkages connected with various springs and rods. So I "farmered" a return spring. I forgot to take pictures when apart, but I will be taking it apart again to fix it right.

Also, I retract my previous comment about it not chipping so well. I went through and re-torqued every bolt and tightened the belt. Personally I am concerned the belt may be too tight, but I may be wrong on that point. Perhaps that was the problem. Anyway, I put it through the paces on green oak. Worked well, but one must trim the limbs quite a bit to fit the hopper. And naturally it doesn't handle any branches over about inch. In the pic below it took 45 minutes to do half that pile.

 

[Lake Girl]

Thanks for the update and glad you got it working enough to catch up with yard debris. Keep us posted on the "fix"

 

[velvetfoot]

I'm almost through with cutting and stacking the log load and I'll have to break out the old (yet only one year old to me) chipper I got that looks like yours but is on four wheels. I recalled messing with a strange looking carburetor last year so I'll probably have a question as well.