Farmall 450 Transmmission sticks in gear.

iowa oater · Mar 15, 2017

Farmall 450 transmission locks in any gear if stopped on an incline.
Transmission lever can't be moved to any other gear.
Pull the TA lever and transmission can be moved to any gear very easy.
Major repair, minor repair or simple adjustment ?
Thanks to anyone with advice !

Roger Tomfohrde · Mar 15, 2017

T/A clutch not releasing, get a manual and make the necessary adjustments. Common problem with a T/A that works.

Janicholson · Mar 15, 2017

The actions in the system are as follows:
With the tractor moving (lets say 2nd gear in direct, TA lever forward) as you step on the clutch pedal the freeplay is first taken up by about 1.25 to 1.5 inches of easy movement. At that point the main clutch throwout bearing starts to push the main clutch fingers.
As the pedal is pushed farther, the main clutch disengages (about 2.5" or so).
At that point the tractor stops.
As the pedal is pushed farther, the TA clutch Throwout bearing is pushed against the TA clutch fingers. The TA rod and linkage have been moving in a slotted link, and it has reached its limit.
Now as more pedal travel is used (maybe 4 ") the TA clutch becomes fully disengaged. THis releases the forces on the TA sprague clutch, and the tractor can ro;; backwards.
The TA clutch should release with at least 1.5" of travel left on the pedal. Jim

iowa oater · Mar 16, 2017

Thank you Roger!
I followed you excellent advise and the tractor shifts very well,no problem know.

iowa oater · Mar 16, 2017

Thank you Jim!
The information you provided will sure be good to know, for future reference when repairing TA problems.

Farmall 450 Transmmission sticks in gear.

iowa oater

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Roger Tomfohrde

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Janicholson

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iowa oater

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iowa oater

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