Splitting Massey TO35, replace clutch

hrbburn

Member

Ok, so I am finally getting ready to split my Massey Ferguson TO35 to replace the PTO clutch. It seemed like I was sure where to split it till it gets right down to time to do it. But there appears to be two options, one right at the engine then another back closer to the gear shift. I assume I have to split it closest to the motor to change the dual clutch? Can someone confirm and if you have any instructions that would be great. Thank you in advance. Bud
 
Closest to the engine

I did a 175 alone, and found it easiest to roll the back
Away from the front. Be sure to prop the front up to keep it from swaying side to side. I used small 2x4's between front end and side panels
 
Just a thought: Does the TO35 have a ground speed PTO option?
If it does, ENGAGE the ground speed, and support the area to be split[ engine/flywheel housing] with a piece of channel steel,
no less than 4 ft?? in length, with the engine section resting on the first 6 + inches.
With the channel pointing up like a"U" and all the bolts and stuff connecting the to pieces together removed.
Rotate the PTO shaft from where it sticks out the rear section[ with a wrench/spare coupling,etc] and it will back away from the front section, and slide level on the steel guide.
The length of steel you use will let you decide how much working room you get when the pieces are separated.
Assembly is just a manner of turning the PTO shaft the opposite way to move the rear section towards the front,
keep the PTO ground speed engaged at all times when separated.
The actual clutch spline engagement will be at most one spline out, which is a fraction turn of the PTO shaft...it will slide by as the PTO is rotated and line up.
hope it helps
 
Phil, It does have ground speed pto. Can you explain more about how you used the channel. I am thinking just like 4" channel, but not sure what would ride on it. Or are you talking about very large channel and the complete tractor riding on it? Thanks again for your help.
 
Evening: I don't know the T035 machine so i had to ask about the PTO...
The steel channel can be channel or "H" beam even, as long as you have the "U" shape pointing up,
so it makes two rails, that you support firmly up against the underside of the engine/bell housing/tranny of the tractor.
everything being ready to come apart, will as you turn the PTO with ground speed engaged, because its being turned by you as an input, and
engaged with the rear tires.
The rear end/tranny unit with back away from the bell housing and disconnect/slide the tranny input shaft out of its clutch spline.
The channel piece gives you machine support as they separate, a surface to slide on and keeps them on the same level and the two channel edges help keep them aligned sideways for reassembly.
I had said the assembly could be out by one spline and it will easily slide by and engage.. I mean that you MAY have to slightly roll the flywheel just that little bit to align the spline, at that final inch or so..
Turning the PTO moves the pieces back and forth. The tranny input shaft will not turn when ground speed is engaged and turned as you are doing from the rear.
Also be sure that the channel is aligned lengthwise of the tractor, not veering towards the left or right rear tire, as the rear section will move in a straight line away from the bell housing.
Better info??
p.
Which way to turn the PTO?? if its still operating...engage ground speed, back up and observe the PTO shaft rotation, turning it the same rotation,when ready to separate the housings,is the same as trying to back the whole tractor up, except the spline slides out of the clutch as the rear section moves back.
The front engine section just sits on the piece of channel supporting it[ 6 inches or so], a few pieces of extra wooden blocking/chain hoist would help stop the jiggles, etc when wrenching on the flywheel and stuff.....
Thats what I do, but others have good methods also, just as long as your comfortable with any method to get er done.
P.
 
Again: I forgot that a wider channel or deeper can be better if there are drain plugs, etc in the way, 4 inch will work as well,
the channel is up against the underside and the tranny section slides on it.
Hope that helps
 
Morning: I forgot to say, rememebered early this morning that the trannsmission gears shift has to be in neutral, when turning the PTO shaft, otherwise you will be trying to turn the engine the same time trying to seperate them.
do it so often, I don't think of the little details.:)
 
This article was posted in the archives a while back - a summary of the mistakes I've made over the years.

There may be some tips that will help.

http://www.yesterdaystractors.com/articles/artint220.htm
 
I thought I had seen where someone said that you had to undo some shaft from the side of the tractor. I don't see the comment now so maybe it wasn't. Anyway, I have everything disconnected now and ready to actually unbolt the two haves. Anything I need to disassemble or unbolt before I start separating the halves. I have taken care of all the obvious but want to make sure there is nothing internal that I don't know to disconnect.
Thanks,
Bud
 
Ok gentlemen, I am getting ready to put the tractor back together but need some information on surfacing the flywheel. I took it to NAPA to get it done but they won't without know the dimensions. They want from the surface where the flywheel mounts to the crank, to the top surface. Then also from the top surface, to the top of the fingers where the pressure plate cover mounts. My local Massey dealer hasn't been able to find the dimensions to this time. Can anyone help supply that. It is the dual stage clutch type. Thanks much, Bud
 

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