656 Hydro stopped moving

TimWafer · May 27, 2020

OK. Was using my 656 Hydro this weekend. Its been working fine but I was going up a hill towing something and it just stopped like it was slipping badly and jerking somewhat. Backed up and turned around and it would go downhill fine. Even seemed ok on fairly level ground but did not want to go uphill. Tried up hill again but it just stopped and felt like something is slipping or a relief valve was
popping off or something. I got it back to the barn but havent looked at it at all yet except to check fluid level which was fine. I was actually plowing with it and a 2 bottom plow a week ago and it seemed strong at that point. I know they are not recommended for tillage. Hope I havent destroyed it.
Where do i start in diagnosing the problem? Really love this tractor for snow-blowing in the winter.

wore out · May 27, 2020

(quoted from post at 06:17:00 05/27/20) OK. Was using my 656 Hydro this weekend. Its been working fine but I was going up a hill towing something and it just stopped like it was slipping badly and jerking somewhat. Backed up and turned around and it would go downhill fine. Even seemed ok on fairly level ground but did not want to go uphill. Tried up hill again but it just stopped and felt like something is slipping or a relief valve was
popping off or something. I got it back to the barn but havent looked at it at all yet except to check fluid level which was fine. I was actually plowing with it and a 2 bottom plow a week ago and it seemed strong at that point. I know they are not recommended for tillage. Hope I havent destroyed it.
Where do i start in diagnosing the problem? Really love this tractor for snow-blowing in the winter.

The splines in the flex plate on the flywheel and the mating splines on the hydro input shaft may have stripped.

Does the PTO work and operate a load?

TimWafer · May 28, 2020

The splines in the flex plate on the flywheel and the mating splines on the hydro input shaft may have stripped.

Does the PTO work and operate a load?[/quote]

Well that's a possibility I guess. I did replace the flex plate a few years ago because it broke. I did notice wear on the splines on the shaft at that time. I would think I would hear noticeable noise if that were the case though and I dont. It just feels more like a hydraulic issue to me but anything is possible. I will have to check the pto out.
I know the steering has been seeping fluid for a while and dripping onto the brake pedals but it appears there is more oil around the left side of the transmission and near the starter and that was not noticeable before.

656 Hydro stopped moving

TimWafer

Member

wore out

Well-known Member

TimWafer

Member

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