As another Lame Cherry exclusive in matter anti matter.
OK today's lesson is replacing the Power Take Off Shaft, PTO, oil seal on a Super MTA.
The first thing you are going to find out is when you go online at Ebay and order two, to have one as a spare, that what you get is not what will fit, made in Taiwan.
Below you will see a Farmall M to study. They are about the same, except my shroud has 3 bolts while an M has only two.
Online at Gaytube, you will find videos on how to replace this seal. They are fucking idiots who are hammering and tearing the seal out and prying on thing.......not draining the rear end hydraulic oil out either.
I'm going to walk you through this the right way, as in just replacing this seal is not difficult, as it is leaking which means the seal is worn and it will slide off the PTO shaft.
Mine was a bit more complicated, because I had a Farmhand loader running off the PTO, and off of that they had an extended shaft so you could run an implement off of that in dual purpose. That was just two nuts loosened and the extension pulls off, and these Farmhand pumps are held in place by a chain, so you just take that one bolt off and the pump slides off the PTO. It is really easy.
Most tractors have sat outside so the hydraulic oil is contaminated with water. I had just wasted 70 bucks in adding oil as I had never dreamed the millionaire who owned this tractor had not put in oil. As it was it started leaking, and I noticed that water contaminated oil.
So you drain the oil. I had a couple of gallons of water and the oil was all reddish brown, so that is why you drain the oil and put in 210 dollars of new oil in this inflation.
If you do not drain the oil, it runs out. I saw one guy having the rear end up, so the oil would not drain, and then he was hammering and prying on the seal and bearings. You can damage shit that way and it makes it harder.
So the correct way is to drain the oil, take the 3 shroud holding bolts out, and slide the shroud off with the seal still inside. I had to pry a bit on the shroud casing, being careful to not damage the gasket, but I pried because I could not get at the thing on the sides to get a good grip. Once I had it an inch out, it slid off the shaft easy.
I had ordered seals months ago..........I could see they were too small. I ordered 706 PTO seals. They were smaller yet. That was like 45 bucks gone and a lesson again in Chinaman stuff does not match the labels and that is about all you can get now.
So we went to town, measured things, ordered in seals and they were delivered the next day.
To remove the old seal, if it is an original, as they built seals very good and heavy, go on the back side and put a large socket which will fit the seal's diameter, and tap it forward and out. Is so much easier than trying to tear seals apart in hammering on them.
To install the new seal, you just lay it CORRECT SIDE down on the outside, put a flat bar on top of it, and gently tap it in to get started and finish it off so as not to damage it.
The PTO shaft should be cleaned of debris, and then lightly oiled, and you just slide the shroud with the seal installed, tapping GENTLY if you need to help it along, and it will seat up against the rear end casing.
You should not have a problem as the new seals are so limp that you should just be able to slide them up the shaft without any problems.
There is a notch on the bottom of the shroud, that you should put on the bottom for oil flow. Just pay attention to that, and all is well.
Now you have no leaks.
Of course I had to put the Farmhand pump back on, and put the PTO extension on, and that took a few minutes as this is all easy.
This is not bearing replacement with them welded onto the shaft in the housing or flywheels you need to have a pulley puller. If the Chinaman were not J Street crooks, I could have gotten this all done in about the time it took to read this. Just remember that from now on, nothing is going to be easy in parts or trusting that things labeled for a Super MTA are going to fit.
I have no idea if these seals will work on a regular M or where they belong. They do not look that great, but then nothing looks that great anymore. I just need it to last to hold the oil in as this has been leaking for sometime and if this dead multi millionaire would have replaced them 20 years ago, they would still be an American seal and lasting.
Would have helped if he put oil in the rear end too. Tight bastard.
Nuff Said
agtG
