B7200 1992HST Clutch Issues I NEED HELP!

[iper]

Hi Everybody,
My B7200Hst has clutch Problem, When I Press the Clutch Pedale to released it the transmission it will not de-engaged, I have ajusted the Nuts so I can press the pedale over it maximum distance but it only work for 10 Hours! I can also here noise from it when pressing the pedale! Since that it`s a HST when the tractor is running it`s working but when I want to turn on and off the PTO Its not allowing me to do so.
When I press the Pedale and look at it I see that the outside shaft going inside the clutch is moving well!

Please I need the pro to help me out with this! Also If you feel that this is from inside the Clutch I would like to know how hard it is to get there to fix it!

If someone can tell me what part I need to remove in order to get inside the clutch it will help me a lot to start my repair! Hopefully there`s a other trick to fix it without having to go inside the clutch !

Also since that the clutch release fonction is not working I cannot start this tractor unless I am really lucky! The reason is that the engine is moving slower than it usually should when the clutch is de-engaged!


BIG THANKS IN ADVANCE Guys!

 

[RDR]

Sounds like your release bearing has seized and is wearing the fingers off the pressure plate. That might be why the engine is dragging down with the pedal depressed. My L245 did the same thing. Good luck.

 

[dusty-t]

Hi iper. This thread will give you some info on what you are going be dealing with. Good luck and keep us posted.http://www.orangetractortalks.com/forums/showthread.php?t=100 Dusty

 

[iper]

Thank you all for your feedback it's really appreciated! I have something else to add with my actual clutch problem! When I press the pedal Yes the Engine is going down and almost to the dead point and is also making noise!
I have also smell smoke from it!

I have greased it But I am giving the tractor a good batterie charge because I have tryed to start the engine too many time and my batterie died!

Vic,
When you said that I should drive the tractor with a maximum speed and push the brake pedal as much as I can, should I leave the Hydro Pedal with a maximum speed or released it before I break ?

Thanks again everyone for you help!

 

[traildust]

iper,
here is a summary of vic's instructions.

Step #1

Step #2

Scott

 

[dusty-t]

A picture is worth a thousand words traildust. Great post Dusty

 

[traildust]

A picture is worth a thousand words traildust. Great post Dusty

Thanks Dusty! By the way you are the man with a lot of hot sisters. I'm hang'n with you

Scott

 

[traildust]

I almost forgot

Hey iper, Dusty brings up a really good point.
Do think you can have somebody take some vid's or at least pic's of you doing those drag runs


Scott

 

[iper]

Lolll Traildust,
That is exactly what I will do! I am already praticing on my Ford Tractor because I rather break a Ford than a Kubota!
See pic!

 

[traildust]

Lolll Traildust,
That is exactly what I will do! I am already praticing on my Ford Tractor because I rather break a Ford than a Kubota!
See pic!

iper that's funny

If I lived close enough I'd give up a days pay to sit on my tailgate with a cooler watch'n you do those drag runs

Just don't forget to have your buddy do this....

Scott

 

[Orangefox40]

Ok, I'm just a little confused
This is a B7200HST...same as mine. It has a clutch but, my understanding is that the only function of the clutch on an HST is to engage the PTO. The clutch is not required to run the tractor and the transmission uses the hydrostatic drive along with the trettle pedal to drive the tractor. If I'm incorrect here I would like to know as I never use the clutch when operating my B7200. Does a HST have a pressure plate and release forks or is this accomplished through the hydrostatic drive? If you cannot engage the PTO then there is a problem.
If I take her up to full speed and tromp on the brake she stops quick and the HST just goes into neutral because my foot come off the trettle pedal. she is not still in gear like a standard tranny would be. Are we mixing up HSTs and standard transmissions here?
Fox40

 

[dusty-t]

Orangefox40. Push the clutch pedal all the way in and hold it there while pushing the hydrostat pedal. The tractor should not move. Dusty

 

[Orangefox40]

Thanks Dusty, I will try that next time I'm out. In the mean time would you explain to me what the fucntion of the clutch is on a HST tractor. The HST is like an automatic transmission on a car, isn't it? A car doesn't have a clutch so why is there one on a tractor. Ok that really sounds dumb and I do know a bit about auto mechanic but this one just doesn't sit well with me.
Ron

 

[iper]

Hi OrangeFox40,

You are right HST doesn`t need the clutch pressed to operate the tractor but my tractor is hard to start and without the clutch pedale pressed I don`t think it will move fast enough to start! Also I have a snowblower witch I need to engage and de-engage the PTO witch is almost impossible right now! Also if I am leaving the PTO Running all the time with the snowblower attached to the PTO, the engine won`t start unless I am really really lucky!

OrangeFox40 I have a question?
I understand, you don`t press the clutch pedale while you are starting your engine? Honestly I have never tried this before and I am wondering if I really need the Clutch pedale Engaged or not while starting the engine because at least for now until the tractor is repair I could turn off the PTO and use the tractor`s bucket! I need a way to start this machine and if I am pressing the clutch the engine just died!



Of course I will press the Clutch just to get the Switch Released so I can get the Go Plug pre-heated!

Let me know how you start your engine ?

Thanks!
Best regard:Iper

 

[dusty-t]

Hi guys. There is a shaft that runs from the engine through the clutch to the hydrostatic transmission. When the clutch is depressed that shaft should stop. If it does not stop It is almost impossible to engage the pto. If the shaft is turning you should be able to disengage easily. Now my B8200 has a frozen clutch. The clutch is rusted solid to the pressure plate. Which means that the shaft that runs from the engine to the Hydrostatic transmission is turning as long as the engine is running. This means that if the pto is engaged when you start your tractor, not only does the starter have to turn the transmission, it also has to turn what ever you have hooked up to the pto. Snowblower,tiller or whatever. Very hard for the starter in cold weather. My tractor starts really good but because my clutch is frozen I don't expect my starter to last as long as it should.. I do not start my tractor with the pto engaged. What I do is let the tractor warm up first, then I pull the knob that shuts the engine off. Now if your tractor is like mine, if you push that knob in too fast the engine will keep running. So what I do is when the engine has almost died I turn the pto on, then shove the stop knob back in, and the engine continues running. If you do it just right you get no grinding at all. Dusty P.S. the pto is run off of the hydrostatic transmission that is one of the reasons you have the clutch.Again you should not have any trouble disengaging the pto with the tractor running, UNLESS the pto is under load, such as being half way into a snowbank or the tiller is in the ground.P.P.S My son is an auto tech and one of his favourite sayings is, NOT NECESSARILY ,is it the clutch--not necessarily, is it the release bearing--not necessarily.

 

[traildust]

Hi guys. There is a shaft that runs from the engine through the clutch to the hydrostatic transmission. When the clutch is depressed that shaft should stop. If it does not stop It is almost impossible to engage the pto. If the shaft is turning you should be able to disengage easily. Now my B8200 has a frozen clutch. The clutch is rusted solid to the pressure plate. Which means that the shaft that runs from the engine to the Hydrostatic transmission is turning as long as the engine is running. This means that if the pto is engaged when you start your tractor, not only does the starter have to turn the transmission, it also has to turn what ever you have hooked up to the pto. Snowblower,tiller or whatever. Very hard for the starter in cold weather. My tractor starts really good but because my clutch is frozen I don't expect my starter to last as long as it should.. I do not start my tractor with the pto engaged. What I do is let the tractor warm up first, then I pull the knob that shuts the engine off. Now if your tractor is like mine, if you push that knob in too fast the engine will keep running. So what I do is when the engine has almost died I turn the pto on, then shove the stop knob back in, and the engine continues running. If you do it just right you get no grinding at all. Dusty

BINGO!

Unlike a car there is not a gear selector for P-R-N-D.

The tractor HST engine is still coupled to everything behind it. If the engine turns so do all of the pumping functions attached to it.
That's why we have the clutch to unload the engine during start up.

Two reasons: The little starter can only put out so much torque and second, WHAT IF you had an HST locked in the cruise control mode? It would try to move as you attempted a start.

My piece of crap JD L120 HST operates the same way.

Scott