Chipper Stop The Burn!! (New Jimna Chipper)

weldingisfun · Jan 13, 2007

kentrodngun said:
Also, I noticed you have your unit suspended off the ground. I know you are doing this to keep the PTO shaft as close to horizontal as possible. I do the same, but I dislike having that much weight (~1000 lb) suspended in mid air. As a matter of fact, I started out the same as you and eventually bent one of the arms . I now prop anything under the base (6" rr tie, bluestone or other flat rocks, tree trunk, etc.) to support the weight to stabilize the unit & to avoid future arm bending. I would recommend that you do the same before your arms wind up bent. Just trying to be helpful here, not critical. Be safe out there & Happy New Year.

Just picked up a Jimna 6 today from Affordable Tractor Sales in Bellville, Texas. Got to meet Tommy, the owner/manager, he is a really helpful and nice fella. He has a great crew down there. Spoke with Jerry over the phone a couple of times, but he wasn't there today. Too bad, I wanted to meet him in person. He was very helpful to me in making the decision about buying.

Regards the QUOTE: Believe it or not the operator manual says to raise it off the ground, when operating the chipper, so that the PTO is between 0 and 15degrees. Since that thought scares the be-jeebers out of me, I will be building and attaching a stand on the chipper that will maintain the 0 to 15 degree angle Jimna wants, it will also serve as a dolly for moving it around the barn when not in use and to support it so that it dosen't tip over onto the feedchute. That thing really is top heavy and unstable. A big order, I hope I'm up to the task. I'll record the process and post pictures in the "Build-It Yourself" Forum in hopes I will get a little help from everyone out there. I am open to any helpful criticism. Sarcasm, I can do without. I teach school and get enough of that in the classroom.

One last thing, I believe I may have figured out a way to operate the feed roller release mechanism by foot. I discussed it with Tommy and he thinks it could work. If it pans out, I will also post it, with pictures, in the "Build-It Yourself" Forum.

Okay, now that I have opened my big mouth it is time to put up or shut up. Wish me luck?

weldingisfun · Jan 13, 2007

kossetx said:
Mike, I don't know if they do, or at least if your going to pick it up in Houston like I did. It isn't that hard if you use your FEL to lift it. It would have taken me an hour if I would have done that first. You assemble the base, 8 bolts, bolt it and the 3pt arms on, 8 more bolts, the dischrge chute, 4 bolts and the hopper extention which is 4 more bolts. Grease and belt checks is all thats left after that. 2 sockets and a adjustable wrench are the only tools that I recall using.

As far as protection, the chipper is belt drive so I guess that is the protection. Belts slip if nessessary. I do like the idea that the shredder has a splined shaft so it can be removed and stored indoors.

The two sockets needed are 16mm and 18mm.
Plan on replacing the Chinese zerk fittings. You will need 6mm and 8mm-1.5 thread. Haven't replaced mine yet but when I do (I'm plannig on doing that tomorrow) I'll let you know how many of each, if anyone is interested.

johnk · Jan 13, 2007

Keep us posted as to how you like that chipper. I'm also in the market for one. Honest commentary is appreciated.

LarryD · Jan 14, 2007

Well I run mine suspended by the 3ph. I read the post regarding this and I'm not sure how this will bend any part of the tractor. If it is in reference to the arms attached to the chipper, I shortened those to just a hair longer than the split pto shaft.

I watched the whole operation very closely at first and didn't really see any adverse forces working against the equipment. There are times when the chipper may be a couple inches off the ground and times when it may be a foot or more off the ground, i just keep the pto shaft as straight as the ole eyeball will get it.

weldingisfun · Jan 14, 2007

You may be absolutely correct, LarryD, but to me it is the safety and stability issues. I just think it would be a whole lot safer if that nearly 800 lb chunk of steel was sitting firmly on mother Earth, especially when I think of that 175 lb flywheel spinning at 540 rpm. I'm confident that the lifting arms on my "overbuilt" Mahindra 4500 could handle it,,,,,but

, the gut says set 'er down.

kentrodngun · Jan 14, 2007

weldingisfun said:
You may be absolutely correct, LarryD, but to me it is the safety and stability issues. I just think it would be a whole lot safer if that nearly 800 lb chunk of steel was sitting firmly on mother Earth, especially when I think of that 175 lb flywheel spinning at 540 rpm. I'm confident that the lifting arms on my "overbuilt" Mahindra 4500 could handle it,,,,,but , the gut says set 'er down.

Couldn't agree more. I eyeball the unit to get the PTO shaft near level and then place RR ties, flat bluestone pieces or flat quarry chunks under the stand. I raise the unit up, place the supports under it, then lower it onto the supports. I initially did not support it, until I bent one of the arms (somewhat weak as the slots are very long).

Oops! didn't read my previous post - getting redundant here - mea culpa!

Ed_Indiana · Jan 15, 2007

I have had my Jinma Chipper for almost a year now. Very pleased with it. On my Kubota B-7800 to keep the PTO drive level I cut the skid that the chipper shipped with in half and reinforced it. Then I lower the chipper on to it at the work site. It worked out perfect.

kossetx · Jan 15, 2007

I can't honestly see how it is a stability issue one it is mounted to the tractor but I'm going to build a base for mine for when it's not on the tractor.

If your going to be shredding cedar and juniper it's going to clog. Keep a socket set and a crowbar handy. I'm using a tire iron. You'll need a 13mm socket. When it clogs and you have shut the tractor off, take off the discharge chute and unplug the discharge as much as you can. Take off the front blade cover and move the rotor in reverse. Put the cover back on, start the tractor, engage the pto and stand back because its going to shower you with cedar. It goes pretty quick once you do it once. A word of advice. Don't drop any bolts into a pile of cedar chips. They disappear quick.

LarryD · Jan 15, 2007

kossetx said:
A word of advice. Don't drop any bolts into a pile of cedar chips. They disappear quick.

I'm not sure that they disappear, more like enter a time warp. I swear they all turn up in the driveway at a later date. Just long enough to make you forget where they came from and spend sleepless nights trying to figure it out.

weldingisfun · Jan 21, 2007

johnk said:
Keep us posted as to how you like that chipper. I'm also in the market for one. Honest commentary is appreciated.

I ran the dickens out of my new Chipper today, 7 hours. This is the first day without rain in over a week. It did great! It chewed up everything I fed it with practically no problems.

One thing that happened that I cannot figure out and that is the size of the chips. I set the gap between the blades and the cutter bar/anvil at .020". I got lots of 1/4" thick chips.

I did learn that it is easier to feed the branches to it when they are wet. I had a bunch cut and lying on the ground when I started this morning. They had been rained on for a week. By afternoon, I was cutting new branches it was sunny and nearly 60. The dry branches did not feed as well. They sometimes needed a little urging.

Since I was chipping cedars and junipers, if you know anything about them, there is no such thing as a straight branch. I would often times have to turn the branch, easy to do, to get the feed roller to pull it in.

Overall, I am very pleased with my new toy.

Anyone want some cedar chips? I probably have three yards and that is after putting a yard or two down in my barns as bedding for my goats.