Help with PTO shaft removal

[darien7]

Help- I snapped off the PTO shaft on my YM336 and am having trouble in it's removal. I have removed the bracket, spacer, 2 snap rings and large washer that is in the rear of the gearbox and now am looking at a bearing that appears pressed onto the PTO shaft. Should the pto shaft and bearing now slide out together, (I have tried and cannot budge it), or do I have to go into the gearbox to remove?

 

[1danny]

You will have to remove the hydraulic lift assembly. This is not an easy job. I would invest in a YM336 service manual.

Danny

 

[Soundguy]

Sorry to hear about your problems.

Ok.. I'm dieing to know.. how did you manage to snap that beefy 1 3/8 pto stub off? /forums/images/graemlins/shocked.gif

Soundguy

 

[darien7]

Not a good memory, but here is what happened. I was bushhogging and the clip that secures 1 side of the 3 pt hitch disappeared??? and wa laa , the hitch came off when I made a turn.

 

[YanmarFever]

If it were me,I would remove it from the rear of the machine.
If you loosen the bolts around the pto shaft, it should slide out in one whole unit with the gears attached.
Thats how all the grey ones are removed, then you can repair it on a workbench. /forums/images/graemlins/wink.gif
Ernie

 

[arthr31]

ouch... that same clip on my 3-pt arm sway chains have disappeared on me too... Good to know what can go wrong... good luck with the repair!!!

 

[darien7]

Yeah Ernie, That is what I would like to do, however, it will not let go of something inside the box. I have attempted to slide it out. There must be more to it

 

[Soundguy]

</font><font color="blue" class="small">( that secures 1 side of the 3 pt hitch disappeared??? and wa laa , the hitch came off when I made a turn. )</font>

Did you have a toplink hooked up? I'm surprised that the other 2 links let it move enough so tha tthe driveline ujoints didn't take up a bit of that slack instead of just poping the shaft off.

Soundguy

 

[YanmarFever]

Try shifting it into 3rd gear first out of 4x4
If that doesnt work try the other gears
Ernie

 

[YanmarFever]

Its not the bolts around the shaft.
Its the bolts that hold the complete unit, the outer ones
about 6-8 of them

 

[1danny]

The 336 is not like that, he will have to remove the hydraulic lift assembly to get to it and maybe the left axle housing. I faxed instructions on how to remove it to Mark.

Danny

 

[darien7]

I got the instructions and will scan over it this evening. I was unsure without a careful look at them whether or not the pto assembly as a whole had to come out or whether the shaft that protrudes could come out in easier fashion Danny.
Mark

 

[YanmarFever]

Danny,
thats a drag, that involves a lot of extra wrenching.
I have never owned a 336 yet. but you are right about pulling the top & axle.
Ernie

 

[darien7]

I see what you are saying. Yes, the top link was on and it was dusk so with the one side coming off, it is all I can imagine happened.

 

[darien7]

(The 336 is not like that, he will have to remove the hydraulic lift assembly to get to it and maybe the left axle housing. I faxed instructions on how to remove it to Mark.)

Danny, after careful study of those instructions last night, you are 100% correct it is not as easy as I had hoped, however, it seems to indicate that if I do not need to service the PTO Pinion, I can go an easier route and only remove the left axle housing. Does this sound right to you. After it goes thru how to remove the PTO pinion, it seems to make a statement that if it needs no service I can proceed to the left axle as an easier route to the PTO Shaft.

 

[darien7]

Well everybody, I finally got my lil ole' 336 back up and running. Thank you to everyone for your help in this and especially Danny! In the end, I had to remove the hydraulic lift assembly & left cover, as Danny & Ernie surmised, to access the front snap ring and washer holding the PTO in place. I am new to tractors and this forum really is a awesome help! Again, thanks to all.