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Massey Ferguson 12


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#1 massey 16 OFFLINE  

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Posted April 23, 2013 - 09:03 PM

I have a massey ferguson 12 with a manual transmission and 2nd gear mostly dose not work but works some times :mad2:



#2 chris m OFFLINE  

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Posted April 23, 2013 - 09:10 PM

What do you mean? Is it just popping out of gear? Or is it grinding or not going into gear? Sorry for your troubles though. Maybe with a little more info we can all figure out an easy fix for you.


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#3 MH81 ONLINE  

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Posted April 23, 2013 - 09:11 PM

When you say doesn't work, do you mean it pops out or does nothing? If it pops out, that's repairable.
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#4 New.Canadian.DB.Owner OFFLINE  

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Posted April 23, 2013 - 09:56 PM

Hi, Massey 16.  Good to have another Ontarian on board.  These guys can solve anything, if you can accurately describe the problem.  Pictures & videos really speed things along.  


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#5 JDBrian OFFLINE  

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Posted April 24, 2013 - 10:04 AM

Welcome to GTTalk. There are lots of MF owners here who will be able to help and there should be parts available for that transmission which I think is a Peerless model.


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#6 massey 16 OFFLINE  

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Posted April 24, 2013 - 03:30 PM

when it does not work the shifter will sit in 2nd but not move grind or groul but when it works it works fine till you change gears then you cant find 2nd gear



#7 massey 16 OFFLINE  

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Posted April 24, 2013 - 03:58 PM

Also seems to go into second gear and work when transmission is cold { just started up] 



#8 New.Canadian.DB.Owner OFFLINE  

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Posted April 24, 2013 - 05:36 PM

Okay, here is a quick tour of the inside of a Peerless geared transmission.  Yours may vary somewhat, but this will give you the basics.

 

The belt from the engine connects to an input pulley on top of the transmission.  The input pulley drives a gear, which drives the large bevel gear, and power for second gear follows the arrows.

 

Power path - 2nd gear.jpg DSCN2010.JPG

 

The shaft (#31) has a series of slots cut into it.  There are an equal number of slots cut into the gears (2nd gear is #16) and thrust washers (#28) that otherwise turn freely on that shaft.  There is also a shift collar (#33) & shaft keys (#32) on that shaft.  

 

The keys ride in the slots and are moved left & right by the shift collar (#33) which in turn is moved by the shift fork (#34).  The knob on the end of the keys will lock one gear to the shaft and allow that gear to send power the wheels.  If you are having problems getting into 2nd gear, you have a problem with the gear, thrust washer or keys.

 

Shift mechanism.jpg DSCN2032.JPG parts diagram.gif

 

 

There is one other remote possibility.  In the upper casing, there is a ball bearing (yellow arrow) that rides in a series of holes (red circle).  The ball bearing sits on top of the shift fork (blue arrow but broken off in this photo) & moves with the shift fork.  It gives a positive catch to each gear position.  The rusty ball (green arrow) is your neutral sensing switch.  If you have crud in the hole for second gear, it might obstruct the shift into 2nd gear.  Remote, but possible.  Either way, you won't know until you split the transmission.

 

Positive gear position system.jpg


Edited by New.Canadian.DB.Owner, April 24, 2013 - 05:39 PM.

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#9 olcowhand ONLINE  

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Posted April 24, 2013 - 05:47 PM

 His Massey trans is a model 2300 series Peerless, nothing like the one posted above.  I attached the repair manual.

 

Attached File  Peerless-2300 Drive Axle_Series_Repair.pdf   5.6MB   57 downloads


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#10 New.Canadian.DB.Owner OFFLINE  

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Posted April 24, 2013 - 06:08 PM

My bad.  Sorry.



#11 olcowhand ONLINE  

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Posted April 24, 2013 - 06:17 PM

My bad.  Sorry.

 

That's quite alright....I get things mixed up sometimes too!   The point is, you were trying to help!  :thumbs:


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#12 massey 16 OFFLINE  

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Posted April 24, 2013 - 08:47 PM

Any ideas why it works sometimes



#13 DH1 ONLINE  

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Posted April 24, 2013 - 09:45 PM

I had problems with the shifter detent springs, they break and won't hold the shifter in gear. Seems like 2nd gear position is the one that fails before the others.


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#14 massey 16 OFFLINE  

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Posted April 25, 2013 - 02:22 PM

Did wou get the parts from agco?



#15 olcowhand ONLINE  

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Posted April 25, 2013 - 05:04 PM

Did wou get the parts from agco?

 

You can, but if no Agco near you but there is a John Deere dealer, these transmissions are basically the same as in the John Deere 210,212 & other models & has the same detents exactly as yours.  


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