135 pto problem

jth88

Member
I just bought this 135 and the pto gear for ground driven pto Is loose looks like the washer behind the nut that holds the gear Is broke is this a normal problem for a 135 can the parts still be bought from the dealer .Thanks for any info . Does it look like any other parts are missing? Judging by the tie wrap some has been working on it before. Sorry pic is upside down I have turn and rotated and it keeps loading upside down.
a176081.jpg
 
Drain, and flush all that old oil out of the transmission first (that's a lot of water in that oil), if there is something broke it maybe laying on the bottom.
 
Yea I have already drained the oil. If you look
about 2 inches in front the tie wrap their is a
ring dangling on the shaft I think that's the
piece of the washer that's suppose to be
holding the gear in place.
 
Is there a thin bearing underneath the zip tie? The washer should be up against the gear, then there is thin bearing, then the nut that the zip tie is around.
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No bearing the zip tie looks to be there to keep gear from moving forward. I looked at I & t service manual and agco parts book online I & doesn't show much. Parts bock shows from that nut back to the pinion and then up at the transmission on another page I didn't see a bearing in the parts book it showed the gear the big washer then a smaller washer with tabs onit to lock the nut after it was tightened. The nut the tie wrap is around is a spanner nut I believe it called has 4 slots around it.
 
AGCO parts shows the small washer as a (washer, bearing), but I've never seen the big washer fail like that one. On another note the only thing I've seen that used ground pto is a fertilizer spreader. Now they have wheel that rubs on the tire on the spreader for ground pto since a lot of tractors don't have ground pto. The zip tie is a interesting fix although they could have put the washer behind it so the washer isn't rattling around on the shaft.
 
I'm thinking about just splitting the tractor and pulling the piece of washer and gear and bolting it back together. I will never use the ground pto. I posted middle last week about the value of the 135 with a pic I went ahead and bought it. It ran rough power steering didn't work 3pt didn't work and pto wouldn't work. It had a bad plug wire now it runs smooth. Added fluid to power steering and it works. When I took the cover off to look at pto whoever was in there didn't put the arm on the lever back in the gear slot so now the lpto works good and I filled it up with new fluid on the hydraulic s work good. This tractor less than 1200 hrs on it.
 
That spanner nut is used to hold the preload on the tapered bearings that the pinion shaft runs on. Not enough preload on the bearings the pinion shaft will walk back, and forth (you can rock the tractor back, and forth to see if the pinion shaft moves back, and forth, or if you drove it and the rear-end gears made a lot of noise then you need to go into it). Too much preload will wear the pinion bearings out. Now you know why they used a zip tie, so they wouldn't have to mess with setting the pinion gear bearing preload. If everything looks, and sounds good another thing you could do beside splitting the tractor (unless if you want to) is to measure the outside diameter of the spanner nut, and put a split collar on it to keep the gear from moving rather than a zip tie.
 
the rear sounds quiet when under pull but when it coasts down hill you can hear a little noise but im thinking it is from that gear being loose rubbing on the pto drive gear. but I guess it could also be from the pinion being loose also. I will pull the side cover back off this weekend and look at it again.
 
The all pretty much make some sort of noise when coasting down a hill, it's how loud the noise is (like a whisper = good, like yelling = bad). Those gears have at least 40 years of wear on them so they will talk a little bit.
 
is that the nut that sets the adjustment on the pinion bearings,if it is and I don't got my wires crossed,you can remove the coupling in front of it by removing the cotter pin and sliding it forward then the shaft will move out of line enough to remove the coupling then you can get at the nut,you need to repair the problem if that is the pinion bearing adjustment because if allowed to run loose it will eventually destroy the bearing on the end of the pinion and a lot of the time the pieces damage the ring and pinion and have seen it cause the rear housing to breakout where the end bearing fits into the housing
 
Yes that's the nut that loads the pinion bearings. The washer in front the nut that holds the the gear in place broke out around the nut. So you are saying I can go threw the hole in the rear housing and remove a pin and slide the coupler back and get to the nut.
 

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