Chipper Chinese Chipper Review

markie61 · Apr 22, 2004

Reviving an old thread /forums/images/graemlins/grin.gif

I ordered the 6" Jinma from Emerybuilt today. Thanks to all of you who did the missionary work on the learning curve. I hope I will be successful and avoid the problem with the retaining ring.

I'll add to this thread as experience permits.

Mark

TonyC · Apr 22, 2004

Welcome to the Chipper club, Mark!

I was going to wait a bit to post this but since you brought it up...

I believe I have found a nice solution for those of us having a problem with the circlip. I have been having a terrible time with mine. Nothing I put in there seems to hold well at all...very aggravating. I took the shaft segments to a friend of mine who is a auto mechanic and also an amateur metal worker. We spent a while discussing a permanent solution to the problem...most of them complex. Then he dumped a jar of misc clips on the table and we picked one out thet looked really good. I'm crossing my fingers but I have two hours on this clip and I have thrown everything I could at the chipper, big and samll and it hasn't budged. (It has never performed that well since I bought it.) I think we have a winner here! Fortunately he said it is a clip used on the front axle of front wheel drive vehicles...on most makes and models he said. I'm going to test some more then track down a source or part number. If anyone is desperate to try it I can offer a bit more information sooner.

Good luck with your chipper!

DIYGuy · Apr 23, 2004

I've been lax at posting my latest finding as well. If the auger feed drive belt is too tight, it will force the drive shaft to slip at the release mechanism. Although mine is now a little rounded, it still works OK. I relieved a little bit of the belt tension and all is well again.

The auger drive belt is a 38 x 1/2.

markie61 · Apr 23, 2004

Thanks! I just got to get down there to pick it up next week - about 4hrs each way. When you get the p/n, I hope you will post it. I plan to print out this complete thread along with DIYguy's assembly/maintenance guides and keep them with my "owner's manual". Or, use them as my owner's manuals...

Mark

TonyC · Apr 23, 2004

While we're at it I have a new problem that developed. The top pulley shaft holding the main drive belts is slipping out. I have attached a picture to show it. The picture attached shows everything as it should be. The big arrow shows the point of separation. The little arrow shows one of two set screws. I don't know if these set screws have anything to do with my problem. I tried turning the set screws either in or out and they won't budge. Tomorrow I am borrowing a set of hex keys that go on a ratchet. Either way I'm not sure if they're involved.

Does anyone have any ideas or experience with this? The next post shows the shaft starting to separate after only about 20 seconds of operation and the lowest throttle setting.

TonyC · Apr 23, 2004

This photo shows the shaft as it is beginning to slip out.

NM_Mike · Apr 24, 2004

Tony,

Had the same thing happen to my chipper. Turns out that the key was missing and the little bit of slippage caused the pulley to slip off the shaft. I took the pulley off the shaft, installed a key, and reassembled. I have about 20 hours on the chipper since the fix without any new issues.

The allen screws had nothing to do with my problem. They are there to hold the shaft into the bearings.

Mike

TonyC · Apr 24, 2004

Thanks for the reply, Mike. At least I'm not alone! What holds that pulley in place...just friction?

NM_Mike · Apr 24, 2004

Tony,

There is an inner sleeve and an outer pulley. They both have a reverse pitch so that it tightens down on the shaft when you tighten the three bolts on the back of the pulley. This friction is only meant to hold the pulley horizontally on the shaft. The key is what keeps the pulley from rotating on the shaft. You can look between the shaft and the pulley to see if you have a key in place. If you do, then you have a different problem.

To remove the pulley, you have to remove the belts, take out the three bolts, thread them into the three additional holes on the back of the pulley. By tightening the bolts, you push the outer pulley off of the inner sleeve.

Mike

dnu · Apr 28, 2004

Hope I'm not butting in, but I haven't yet figured out how to post to a particular thread. The only thing I can think to do is post my question as a reply. Any help on how to post would be appreciated.
javascript:void(0) Thanks.

Anyway, I have a Kubota Grand L 3010 HST 4WD. I'm wanting to get some opinions as to whether it weighs enough to safely move the Jinma Model 6 (6") chipper and whether it has enough power at the PTO to power the chipper. The owners manual lists the tractor as weighing 2745 lbs. Don't know whether that includes weight of front loader. PTO power is listed as 24. Has a 1 3/8 6 spline PTO shaft. Any opinions would be welcome. Thanks.