Jinma 284 front coupling removal?

[AGELE55]

Anyone know how to remove the front 4wd coupling on a Jinma 284? I drove out the roll pin and assumed it was a "slip fit", but I have tried to aggressively tap it off and no joy. Is this a press fit?
Thanks in advance...

 

[DwayneB]

Anyone know how to remove the front 4wd coupling on a Jinma 284? I drove out the roll pin and assumed it was a "slip fit", but I have tried to aggressively tap it off and no joy. Is this a press fit?
Thanks in advance...

I've got a kama 354 which is almost the same tractor. I broke the ring gear in the hoghead using it for a bulldozer. Mine didn't have a roll pin. It had a bolt in the coupling at the end. Once I took the bolt out the coupling would slide back to get it off. I'm pretty sure yours will also. It's just rusted stuck.

 

[AGELE55]

Thanks Dwayne for keeping me on the right track. After too much effort, I finally figured out that there was still a roll pin in the coupling. I had removed the roll pin, but..go figure.. there was a roll pin inside a roll pin. When I drove out the first one, I didn't see the second outer pin due to the grease and crud. One I figured that out, the coupling slipped off easily. Duh.:confused3:

 

[DwayneB]

Thanks Dwayne for keeping me on the right track. After too much effort, I finally figured out that there was still a roll pin in the coupling. I had removed the roll pin, but..go figure.. there was a roll pin inside a roll pin. When I drove out the first one, I didn't see the second outer pin due to the grease and crud. One I figured that out, the coupling slipped off easily. Duh.:confused3:

Like I said, my Chinese tractor had a grade 5 bolt in it. You could probably go back with a bolt as long as it fits snug. That way it's a lot easier if you ever need to remove it again.

 

[AGELE55]

I went back with a single roll pin and should have no issues. I also deleted the ball bearings and replaced them with "slugs" I made from an 8.8 bolt. Hopefully they will out perform the bearings that continually drop out and chew up the coupling. Thanks again.