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7060 Pto seals replacement again.
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Joined: 01 May 2012
Location: Ohio
Points: 519 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AC 426 power Quote  Post ReplyReply Direct Link To This Post Topic: 7060 Pto seals replacement again.
    Posted: 14 Dec 2019 at 9:03pm
Got a couple of questions on replacing the seals on my PTO, how much torque should I put on the big nut of the shaft? first time I replaced it I had a Issue where the 1000 shaft actually rubbed on the output shaft when using the pto on 540 and got hot enough to actually damage the front seal and cause a leak again before the problem was noticed, which made me wonder if this problem could have been caused by not having enough torque on the nut?  or any other idea as to why this would happen? taking it apart all the bearings and gears look to be fine and did not have any unusual wear or other signs of improper install. 
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Joined: 27 Dec 2014
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Points: 767 		Post Options Post Options   Thanks (0) Thanks(0)   Quote LB0442 Quote  Post ReplyReply Direct Link To This Post Posted: 14 Dec 2019 at 10:36pm
Here is a picture from previous post I did on a dual pto install.  Manual says to tighten that nut 20 inch pounds more than turning torque.  Mine checked out at 185 inch pounds turning, so I tightened it down until it went to 205 to 210 inch pounds.  Make sure you install the lock pin with new wire also.  I would not over tighten it.
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Joined: 27 Dec 2014
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Points: 767 		Post Options Post Options   Thanks (0) Thanks(0)   Quote LB0442 Quote  Post ReplyReply Direct Link To This Post Posted: 14 Dec 2019 at 10:37pm
It's been in there for about 200 hours.  So far works great, no leaks no noise.
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Points: 7664 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MACK Quote  Post ReplyReply Direct Link To This Post Posted: 15 Dec 2019 at 8:00am
Sounds like front bearing or race is the problem. Are you sure the front race is not missing?          MACK
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Points: 519 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AC 426 power Quote  Post ReplyReply Direct Link To This Post Posted: 15 Dec 2019 at 5:57pm
Originally posted by MACK MACK wrote:

Sounds like front bearing or race is the problem. Are you sure the front race is not missing?          MACK
Here is a look at the hub Mack, Everything looks normal to me. 
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Points: 7664 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MACK Quote  Post ReplyReply Direct Link To This Post Posted: 15 Dec 2019 at 7:36pm
It would have to be on solid shaft, not hallow shaft.        MACK
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Points: 519 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AC 426 power Quote  Post ReplyReply Direct Link To This Post Posted: 15 Dec 2019 at 9:04pm
Originally posted by MACK MACK wrote:

It would have to be on solid shaft, not hallow shaft.        MACK
Are you talking about the small signal bearing and race that the shaft rides on? 
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Points: 288 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave H (NE) Quote  Post ReplyReply Direct Link To This Post Posted: 15 Dec 2019 at 9:16pm
yes that is the one Mack is talking about
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Yes, the bearing on the front end of the longest shaft.       MACk
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Points: 519 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AC 426 power Quote  Post ReplyReply Direct Link To This Post Posted: 16 Dec 2019 at 7:42pm
Originally posted by MACK MACK wrote:

Yes, the bearing on the front end of the longest shaft.       MACk


Bearing looks fine and race looks to be correct. 


Was wondering if it would be wise to re use the old big seal that I just installed this spring? Or should I just bite the bullet and replace it again? looks fine, but it is $50 through Agco. 
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Points: 767 		Post Options Post Options   Thanks (0) Thanks(0)   Quote LB0442 Quote  Post ReplyReply Direct Link To This Post Posted: 16 Dec 2019 at 10:31pm
There is a torrington bearing between the 2 gears, is that still good and the washer also?
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Points: 519 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AC 426 power Quote  Post ReplyReply Direct Link To This Post Posted: 17 Dec 2019 at 8:57am
Originally posted by LB0442 LB0442 wrote:

There is a torrington bearing between the 2 gears, is that still good and the washer also?
Appreciate the pictures and yes they are both there and in good condition.  
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Points: 767 		Post Options Post Options   Thanks (0) Thanks(0)   Quote LB0442 Quote  Post ReplyReply Direct Link To This Post Posted: 17 Dec 2019 at 9:22am
Well here are the install pages from the manual possibly that will help.
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Originally posted by LB0442 LB0442 wrote:

There is a torrington bearing between the 2 gears, is that still good and the washer also?
appreciate your time in posting this, very helpful, way better then my shop manual for some reason, I think my issue was that I might not have got the shaft in far enough in on the front bearing, going to be very mindful of the shaft protrusion this time.
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Originally posted by LB0442 LB0442 wrote:

It's been in there for about 200 hours.  So far works great, no leaks no noise.
How exactly did you measure the torque on the nut? PTO output shaft with a socket?
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Yes, I can't remember what size socket but one fit on the PTO shaft.  I have a couple of different torque wrenches but the dial type ones work best for that.  Similar procedure to installing differential pinion bearings.
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Points: 519 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AC 426 power Quote  Post ReplyReply Direct Link To This Post Posted: 18 Dec 2019 at 9:27pm
Originally posted by LB0442 LB0442 wrote:

Yes, I can't remember what size socket but one fit on the PTO shaft.  I have a couple of different torque wrenches but the dial type ones work best for that.  Similar procedure to installing differential pinion bearings.
I think my issue may have been improper torque on the nut, as I tightened the nut the 1000 shaft became flush with the hollow shaft as it should.   
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Points: 519 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AC 426 power Quote  Post ReplyReply Direct Link To This Post Posted: 21 Dec 2019 at 12:28am
Success! Got it all back together and no leaks or notices and most importantly no contact with the 1000 shaft, ran the grain cart all day with no issues.
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