L2250 PTO problems

[ancho]

I just picked up a project, it's an L2250 that hasn't been loved much over the years. I'm doing some basic maintenance - fluid and filter changes, cooling system flush, thermostat, etc, but the area where I am a bit unprepared, is in troubleshooting the lack of PTO function.

The rear PTO output shaft, where an implement would attach, does not spin by hand. Is it supposed to? It spins freely on my BX2230.

The PTO engage lever (which operates in an up-down direction, indicating dual clutch), does not move from the middle position. The linkage external to the transmission moves a few mm, and the vertical shaft that enters the top of the transmission moves a few mm, but no engagement occurs.

Where should I begin to look for the problem? I may be OK with splitting the tractor but it sure would be great if that was not needed.

Thanks!

 

[dieselcrawler]

Yikes... that's a bear to get to, I've had an L2850 apart, I assume they are simular in design. I have many pictures of that project, I'll post a few later when I get home.

 

[ancho]

Thanks, that would be great. Interestingly, the LH side of the transmission has "L2850DC" on it. I am guessing it is the same unit used in the 2850.

 

[dieselcrawler]

If I recall, the factory shop manual I was using covered 2250 thru 2850, so yes, they are likely the same.

 

[SPYDERLK]

I just picked up a project, it's an L2250 that hasn't been loved much over the years. I'm doing some basic maintenance - fluid and filter changes, cooling system flush, thermostat, etc, but the area where I am a bit unprepared, is in troubleshooting the lack of PTO function.

The rear PTO output shaft, where an implement would attach, does not spin by hand. Is it supposed to? It spins freely on my BX2230.

The PTO engage lever (which operates in an up-down direction, indicating dual clutch), does not move from the middle position. The linkage external to the transmission moves a few mm, and the vertical shaft that enters the top of the transmission moves a few mm, but no engagement occurs.

Where should I begin to look for the problem? I may be OK with splitting the tractor but it sure would be great if that was not needed.

Thanks!

I have an L2550. ... Yes, the PTO stub should spin by hand - but since it has been neglected/unused for so long it might be stuck a little and the 2 or 3 ft-lb you can do by hand doesnt turn out to be enuf. You need to apply a little leverage to get a feel and see if its really locked.

The PTO lever stuck in center is a problem. Thats the disengaged/neutral between the 2 PTO speeds - so your PTO "gearshift" is stuck ... maybe. There should be a small safety lever that excludes an inadvertent shift into high PTO speed. Try to see if that is giving an issue keeping the main lever centered.

 

[ancho]

I have an L2550. ... Yes, the PTO stub should spin by hand - but since it has been neglected/unused for so long it might be stuck a little and the 2 or 3 ft-lb you can do by hand doesnt turn out to be enuf. You need to apply a little leverage to get a feel and see if its really locked.

The PTO lever stuck in center is a problem. Thats the disengaged/neutral between the 2 PTO speeds - so your PTO "gearshift" is stuck ... maybe. There should be a small safety lever that excludes an inadvertent shift into high PTO speed. Try to see if that is giving an issue keeping the main lever centered.

I already removed the surrounding panel so the safety lever is out of the picture. Thanks though.

Any suggestions how to get some leverage on the stub, to see if I can free it?

 

[repete]

Before you start reefing on stuff, go to the basics. Is it full of hydraulic fluid. Have you tried it with the transmission hot. Is the linkage binding or in need of lubrication?

 

[SPYDERLK]

Do you have a pto implement? Put one end of the telescoping pto shaft on the spline and torque the yoke with pipe pliers. If it doesnt move with 20 ft-lb theres something serious. Maybe have someone try to move the shift lever while you turn the stub back and forth. It may be that the gears are not presently aligned to mesh and will when the stub turns.

 

[ancho]

Before you start reefing on stuff, go to the basics. Is it full of hydraulic fluid. Have you tried it with the transmission hot. Is the linkage binding or in need of lubrication?

The prior owner told me the PTO hasn't worked in years. I brought it home this week and have not run it since. The hydraulic fluid is almost to the top of the sight glass on the LH side of the transmission. I do not see anywhere that the linkage is binding or in need of lubrication. The linkage actuates the vertical rod that enters the transmission, and that vertical rod moves up and down, but only by a couple of mm.

 

[ancho]

Do you have a pto implement? Put one end of the telescoping pto shaft on the spline and torque the yoke with pipe pliers. If it doesnt move with 20 ft-lb theres something serious. Maybe have someone try to move the shift lever while you turn the stub back and forth. It may be that the gears are not presently aligned to mesh and will when the stub turns.

Got it. I have a shaft I can try tomorrow. Thanks.