Changing PTO Seal

[damianhaarhoff]

Hey guys, I have a leak at the PTO and so I read a post about changing the seal. It said to put the PTO shaft into a vice, remove the snap ring and tap out the shaft. I have attached two photos of the shaft in the vice. Initially, I used the set up shown in the first photo and after much banging(not tapping), the shaft moved slightly but would not go past the ridges right above the where the snap ring goes (see the ridges in the third photo). I figured either I am doing something wrong (and I need to use the setup shown in the second photo) or these ridges developed over time with wear and tear, and simply need to be ground down a little to allow the shaft to slide out. Can someone tell what to do here? Also, what to I do once I have the shaft out? How do I go about replacing the seal? I heard I needed a special tool? Thanks for any advice!

 

[Dell (WA)]

damian.........taker outta the vise and SLAM the splined end onto the floor, just like you were installing metal fence posts. The INERTIA of the SLAM will POP the 4-bolt housing off'n enny ridges or other stuff. Simple, eh?

Me? Ittza less then $100 (cheep) fer NEW PTO shaft with bearings and seals with now MANDATORY 1-3/8" splines. Sumptin' to tinka-bout........Dell

 

[Bruce (VA)]

As Dell said, just hit it harder!

Then, remove the other spring clip from the other side of the bearing. At this point, remember that you never bought a seal driver & go get a BF socket & drive the seal out. If you have the new style seal, the white side goes out. (open side to the oil) Put some grease on it.
75 Tips

 

[Bulldozer]

Recently rebuilt my own 8N PTO shaft assembly unit. It was real project.

It appears the that your PTO assembly unit maybe an aftermarket design evidenced by the small snap ring at the base of the spline.

The sleeve at the base of the spline on the 8N has a major interfence fit. It must be cut/split out to remove it. The shop manual also indicates this procedure. This a difficult task. If the sleeve is hammered out of pressed out the sleeve may scarr the PTO shaft, The assembly unit may leak oil after the replacment sleeve is installed through the grooves between the shaft and the sleeve ID.
This is why there is a major interference fit.

Looking at the condition of the splines ,I also agree with Dell that the entire unit should be replaced rather than overhaul the existing unit.

Also if this unit is an aftermarket with a different configuration than the 9N or 8N, parts may be difficult to locate.

If this was my unit, would toss it and replace the entire unit.

 

[damianhaarhoff]

Being new to this forum, I am not sure exactly how the posting works but I am hoping that all who responded to my post can see this. Anyway, I just wanted to thank you guys for your responses. I decided to go ahead and get a new PTO shaft rather than messing with parts. It just seemed easier. Thanks again!

 

[gwstang]

See my post about the carnage after I did change the seal. Wish I would have gotten a new pto shaft before that happened.