IH 460 issues

nc460

Member
I have a 460 that we just got running for the first time in 7 or 8 years. When it was parked everything was working on it. But now the pto is stuck in the on position. What would be the best way to get the pto to free up. Also the steering is a little loose on it. Is there a way to tighten the gear box or will it have to be replaced.
 
Stuck in the on position, how?

Does the lever move? If not, then squirt some penetrating oil on the pivot points and try to work it loose. It may take several applications of penetrating oil over several days.
 

If it's the PTO shaft and not the lever, you may need to put a load on it to "break it loose", if it's the clutch itself.
 
The lever will move anywhere that you want it to. What do you recommend hooking it up to? We have a Baler, Mower, feed grinder, etc. What would work best. And does anyone know anything about tightening loose steering on these tricycle 460's
 
With the tractor off, putting a coupler on the shaft and using a bar or chain/pipe wrench on the outside might get it free. Jim
 
(quoted from post at 16:58:20 12/02/10) The lever will move anywhere that you want it to. What do you recommend hooking it up to? We have a Baler, Mower, feed grinder, etc. What would work best. And does anyone know anything about tightening loose steering on these tricycle 460's

What style of PTO do you have? Early tractors had a planetary type. That unit has a small oval cover on top and the engagement lever will latch in both the engaged and brake position. The later tractors had the over center clutch style where the handle will latch only in the brake position.

The later, over center type, is more likely to see this problem. If the bolt that clamps the lever to shaft going into the PTO unit is not tight enough the woodruff key in the shaft can shear off and you will not be able to shift it. If the linkage moves going into the unit itself you may have mechanical problems that will need disassembly to repair.
 
I think that he is trying to tell us that no matter what position the handle is in, the PTO shaft is spinning all of the time.

When I was a kid, our 560's PTO would spin with the handle in the locked position with nothing attached, but when we had the self-unloading feed wagon attached, we had to pull the handle to engage. We used to turn off the tractor to hook up the PTO.

Looking back, my Dad was either to tight, to cheap or most likely to poor to get it fixed properly. I was too young at the time to know any different.

Edward
 
First off, the brake in the off position was nothing to brag about on those over center pto's, need a lot of tension on them in the off position. Second, the key not only shears off, but it usually wears in the operating shaft so you lose much of the movement. You have to look real close to see if lever and shaft are both moving the same amount. I just repaired one this summer the "cheap" way. Not really the easy way though. I got a wider key and took my dremel for the lack of any better tool and made the key groove in shaft so key fit really tight and filed the groove in lever to fit key. Worked fine. This was always a problem we ordinarily repaired by replacing the shaft and other worn internal parts. Thing is you have to have a good over center snap when it is working right and the adjustment on the clutch is internal. Some latest ones had large plug in top to get in to adjust clutch. I usually just pulled the rear half off and adjusted them though. Warped discs will make them near impossible to shut off with no load on them.
 
I guess I should have said this sooner but when it was parked 7 years ago, it was working fine, the last thing that it was used for was hedging around fields with a 7 foot sickle.
 
Maybe find someone with a PTO dyno and put a light load on it? If the engine is OK, and the PTO is OK give er a tune up and dial it back in while your at it.
 

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