Mf 65

   / Mf 65 #1  

hoot1293

Member
Joined
Aug 26, 2012
Messages
46
I have any old mf 65 that when you engage the pto it works fine. When you try to disengage it will not disengage until you cut the tractor off. Any suggestion.
 
   / Mf 65 #2  
Is that with the Clutch or the lever.
 
   / Mf 65 #4  
Do you press down on the clutch then shift the lever?
 
   / Mf 65
  • Thread Starter
#5  
Yes,you have to push the clutch in to move the lever
 
   / Mf 65 #6  
You need to pull that cover off and see what jamming. Do you have a manual?
 
   / Mf 65
  • Thread Starter
#7  
I have the manual that came with it from 195?. I will take the plate off and check.
 
   / Mf 65 #8  
I have the manual that came with it from 195?. I will take the plate off and check.

You need a Service Manual from Agco Books. You can see parts Book by going to this link and sign in as Guest,AGCO Parts Books
 
   / Mf 65 #9  
The service manual to make repairs to the clutch and such is located at www.agcopubs.com

There you will find a list of both tractors of many flavors and implements. There are CD's advertised on places like eBay but don't cover the many topics the factory service manual does. AGCO is the mother company that owns the rights to Massey Ferguson. There is a link floating around here on the site that mentions Dean Austins website that describes problems and fixes with clutches. At any rate unless you have a loose pedal bushing on the side of the tractor, it sounds like the clutch needs looked at. There is a clutch inspection plate on the bottom that will allow visual inspection for clutch movement. One can depress the clutch while the other with a flashlight can inspect it's movement. If the clutch is wore out and needs replacing, the tractor will need to be split in two to access it. It's not that big a deal if one knows what they are doing and have the correct setup for it. If not it was be a overwhelming task that should be left to a repair shop.
 
   / Mf 65 #10  
Yes,you have to push the clutch in to move the lever

If you can engage the PTO with the engine running without any problems than the clutch should be fine. Are you trying to disengage the PTO by moving the lever without using the clutch and the PTO under load. I would think it would be very difficult and this would be normal. I always depress the clutch fully through its second stage when disengaging the PTO. The only PTO that could be disengaged easily under load would be a tractor with independent PTO, in this case the PTO engagement is operated by a hydraulic clutch and it appears that the 65 does not have it. When you shift gears forward or reverse, do the gears grind?
 
   / Mf 65 #11  
EDITED:
He said he could engage the PTO with the clutch just fine. When he tries to disengage the PTO , using the clutch it doesn't release. Sounds like a clutch malfunction to me.

I went to www.agcopartsbook.com and looked up the clutch assembly on a MF 65. No hydraulics involved here. Purely mechanical as I thought. There are clutch levers that the throwout bearing is probably hanging in. The OP didn't mention whether it's a single or duel stage clutch. The single stage clutch is somewhat simple design. The duel stage has quite a few additional parts that if came loose could cause this hangup. Inspecting the clutch thru it travel via inspection plate would be my first coarse of action.
 
Last edited:
   / Mf 65 #12  
EDITED:
He said he could engage the PTO with the clutch just fine. When he tries to disengage the PTO , using the clutch it doesn't release. Sounds like a clutch malfunction to me.

I went to AGCO Parts Books and looked up the clutch assembly on a MF 65. No hydraulics involved here. Purely mechanical as I thought. There are clutch levers that the throwout bearing is probably hanging in. The OP didn't mention whether it's a single or duel stage clutch. The single stage clutch is somewhat simple design. The duel stage has quite a few additional parts that if came loose could cause this hangup. Inspecting the clutch thru it travel via inspection plate would be my first coarse of action.

I'll wait for a better description of the problem from the OP. The problem is pure speculation at this point.

namyessam
 
   / Mf 65
  • Thread Starter
#13  
There is no problem with pushing the clutch in and activating the pto. The problem is when you pressing in the clutch and try to disengage the pto. Today I tried it and it worked. Yesterday it would not disengage until I cut tractor off.
 
   / Mf 65 #14  
sounds like the sliding gear or lever hanging up. That my take on the problem.
 
   / Mf 65 #15  
I always tap the pto lever with my heel while dropping rpm's to get the load off the drive train, this will pop it right out I am sure this will work for you.We had 2 65's on the farm and I spent a lot of hours on them as a kid.Give it a shot.
 
   / Mf 65 #16  
There is no problem with pushing the clutch in and activating the pto. The problem is when you pressing in the clutch and try to disengage the pto. Today I tried it and it worked. Yesterday it would not disengage until I cut tractor off.

Try lowering your RPMs since the gears are not synchronized. My 135 does that on occasion then i'll lower the RPMs and it drops right in.
 
   / Mf 65 #17  
There is no problem with pushing the clutch in and activating the pto. The problem is when you pressing in the clutch and try to disengage the pto. Today I tried it and it worked. Yesterday it would not disengage until I cut tractor off.

So it's not the clutch. does it shift in and out easily when the engine is off? You may need to rotate the PTO shaft by hand to get it to line up. Then check the movement of the shift lever, if it shifts out about the same with the same pressure as it shifts in the problem is likely torque on the drivetrain as I mentioned in my first post. If there is a big difference it could be the detent in the lever on the PTO lever cover. If you remove it you will have to drain off some trans- diff fluid.
 
   / Mf 65
  • Thread Starter
#18  
Thanks for all the help. It has work correctly for the last few days.
 

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