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Massey Harris & Massey Ferguson Tractors Discussion Forum
:

pto needle bearing

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B. Jones

07-09-2007 10:06:44




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This is a Massey 35 with a two stage clutch for live pto.The pto shaft was leaking oil so I decided to pull the shaft and put in a new seal. When I carefully pulled the shaft I saw 2 needles laying in a groove on the pto shaft. I am fairly sure they came out of the large bearing supporting the front of the shaft near the differential. My book says that you remove a retainer and pull the bearing out. What is the best way to get to this retainer and what is the bearing part number? Do I also need this new retainer. I did put it back together and it runs good, but I am afraid to run it with I know at least 2 rollers missing. Thanks, B. Jones

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Dan S (NY)

07-10-2007 09:13:55




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 Re: pto needle bearing in reply to B. Jones, 07-09-2007 10:06:44  
third party image

Here is a picture of the bearing after you remove the left hand axle trumpet. When I did mine, I did not remove the retainer, I just VERY carefully cut through the bearing race to get it out, then tapped the new bearing into place. I stuffed rags behind and below the bearing to catch any bits of metal from the cutting and flushed everything out afterward.

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B. Jones

07-10-2007 10:30:59




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 Re: pto needle bearing in reply to Dan S (NY), 07-10-2007 09:13:55  
Thanks for the reply Dan. Did you drop the hydraulic pump out also or just take off the axle trumpet? B. Jones



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Dan S (NY)

07-10-2007 12:59:18




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 Re: pto needle bearing in reply to B. Jones, 07-10-2007 10:30:59  
I was able to do everything through the trumpet opening to remove and install this bearing. I ended up pulling the pump anyway later because the small neadle bearing in the end of the pump shaft where the PTO shaft engages was also bad. It just wasn't my lucky day when it came to bearings! It did allow me to really clean out the rearend though.

Dan



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DavidP, South Wales

07-09-2007 12:52:03




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 Re: pto needle bearing in reply to B. Jones, 07-09-2007 10:06:44  
Hello B Jones,
The correct way to remove the PTO needle bearing is to;
Remove the hydraulic cover
Split the tractor between the gearbox and rear casing
Remove the side cover and PTO ground gear
Remove the LH axle housing and differential
Remove the PTO shaft
Remove the needle bearing using the appropriate long screw puller and fittings.
Fit the new bearing using the puller from the front
This is taken from the MF 135 Workshop Manual
No, I didn't think so either!
You will certainly have to remove the lift cover and axle housing to gain access to the retainer in the rear.
Your tractor will probably have a mechanical PTO so you will not need to split the tractor. With a correctly fitting drift I think you would be able to drift the bearing out and the new one in but you would have to be very careful not to damage the new bearing.
As an alternative if you can reach forward to the bearing, pack it with greas and try and refit the needles. Good luck.
DavidP, South Wales

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B. Jones

07-09-2007 16:45:00




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 Re: pto needle bearing in reply to DavidP, South Wales, 07-09-2007 12:52:03  
David, thank you very much for your reply. I'm learning a bit more about the tractor all the time. I know you have been very helpful many times. B. Jones North central Missouri.



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