IH 350D Utility - PTO Problems

[Rick C.]

When I engage the PTO it barely spins and will stop if I grab ahold of it. I have done the adjustments per the book and it hasn't helped. Can't find the seasonal shutoff to see if that is the problem.

 

[georgeky]

The disconnect should be under the tractor. Behind the bell housing Just a lever.If that is not the trouble you may be due for a rebuild of the unit. Parts for them are available from IH dealers. Is it full of oil? The PTO unit holds 2 quarts of Hy-Tran or equiv.

 

[Rick C.]

Yes it is full, in fact I had to let some out it was over. That is what it has in it, but my book says it should be 10w oil, so was going to change it.

I am new to tractors, so not sure where bell housing is, but will try to look in the book.

Thanks

 

[Janicholson]

Rick,
The linkage on well used PTOs on the utility series become dysfunctional after years of use.
Two suggestions:
Make very sure there is no lost motion in the hand lever pivot and rod mechanism. Be certain the hand lever moves the PTO lever from the middle both ways.
Adjust it like this, after there is no play in links.
Move the lever exactly half way between the locked on position and locked off position (little flipper catch on lever.
Take off the little dome metal cover from the adjust screws.
Loosen the jamb nut, and tighten the front (away from you) screw until it is just a bit tighter than the point at which it begins to feel tighter as it is screwed in (maybe a eighth turn) then back it off until the PTO shaft will turn with least drag (about 3/4 turn out) and tighten the lock nut while holding the adjuster.
Do the same for the closer adjuster.
If the screws go into the jamb nuts and get flush with the top surface of the nut, the bands are probably worn out, and may be operational for a while, but plan on a rebuild.
Now (tractor off) push the the lever down toward the brake footplate. As it goes down, it should get harder to push when it is about 4" (or so) away from fully OFF. and be noticeably harder to push for the last inch, but not real hard. (this is the brake band tightening on the drum in the PTO unit.
Then pull it up and do the same feel.
The ON position should feel the same way.
The shaft should turn pretty free when the lever is half way, and not at all when in either ON, or OFF. (tractor shut off)
If it slips now, it needs a rebuild. JimN

 

[georgeky]

Rick, it makes no difference about the oil. Hydraulic oil is 10 weight oil. The book was written before Hy-Tran came out. If you do go to 10 weight motor oil make sure it is non detergent. Like Jim says the handle is adjustable and does need it every once in a while. The bell housing is the part that is bolted to the rear of engine. The disconnect is on underside of tractor about half way between engine and rear end. You have to get under the tractor to see it.

 

[Rick C.]

Tried all of the adjusting and nothing works. And still cannot find the shutoff.

 

[TDK]

There"s won"t be a seasonal disconnect on your 350. I believe IH stopped using them on the last 300"s.

 

[Janicholson]

There is no shutoff on a 350Utility tractor (I own one, though gas and lived with a close neighbor with the identical diesel). If adjusting the unit did not perform as I indicated in my earlier post, and the adjustment screws are still above the jamb nuts, then the drive end of the PTO shaft may be toast (Splines) or the planetary gears in the unit may be gone. Pulling it out is not hard, it is a good idea to have the manual handy. The fault will be easy to see. JimN

 

[Rick C.]

Thanks. How far do I need to go to pull it out. I know there are three bolts around the shaft itself. Is that enough to pull it out or do I need to pull the next layer off too. I will also check my books.