Differential Pedal, YM2000

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Ken yn2000
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Differential Pedal, YM2000

Postby Ken yn2000 » Sat Feb 11, 2012 11:46 am

I have something broken internally. The pedal is loose or not connected to anything. The roll pin that can be seen on the outside of the shaft is intact. I think I may have sheared a pin on the inside or something worse. In the service manual (p65) it shows a "special tool being used. Can someone tell me what this is used for? Can repairs like this be performed "in tractor" very easy? Any suggestions or warnings as what to look for when I start taking bolts out would greatly be appreciated.

winston
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Re: Differential Pedal, YM2000

Postby winston » Sat Feb 11, 2012 1:50 pm

Am I correct in thinking your differential lock is not engaged when your pedal is down? I don't have a 2000 manual so don't know what tool you are talking about. Could be your spring is broken or the internal rolls pins are sheared. Any thing unusual happen when this started. I believe to access this you will have to remove the pto assembly. http://www.hoyetractor.com/mm5/merchant ... 00TRANSINT

alan
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Re: Differential Pedal, YM2000

Postby alan » Sat Feb 11, 2012 3:53 pm

It can be a bit of work, so if you use the lock rarely and it's not engaged now, you could forget it. The only possible concern, I think a remote one, is a broken bit loose in the system.

Ken yn2000
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Re: Differential Pedal, YM2000

Postby Ken yn2000 » Sat Feb 11, 2012 6:00 pm

Winston, I was pulling a bucket load of mud out of a pond when one wheel started to spin, I stopped, put my heel on the lock and it went to the floor. It can be raised by hand, moved up and down and feels disconnected. As Alan suggested, I'm concerned about loose metal in the system doing more damage.

Carey
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Re: Differential Pedal, YM2000

Postby Carey » Sat Feb 11, 2012 6:39 pm

My Bet the Pin to the Shifter Fork. If the Fork itself broke it would of most likely have taken alot pressure for it to break. 6 bolts and lift up the 3point and you should be able to easily access it.

Ken yn2000
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Re: Differential Pedal, YM2000

Postby Ken yn2000 » Sat Feb 18, 2012 8:49 pm

I removed the top of the PTO assembly, and assumed the roll pin was sheared at the fork. it was gone. I used a long flexable magnet and fished for pieces of the pin with no luck, I found a lot of normal filings of metal, I blew air into the case, hoping to dislodge any big pieces, I poured about two quarts of transmission fluid over the gears hoping to wash something out, found nothing. My brother walked in, picked up the magnet and pulled the whole pin, still intact, with the inner spring pin still inside out in about 20 seconds. I dont know how many years it has been in stalled but it had slipped out in one piece, the new pins had to be driven in and seems tight. I would not have thought this could happen, but it did.

mmckenz
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Re: Differential Pedal, YM2000

Postby mmckenz » Mon Feb 03, 2020 9:50 pm

I am having similar issues with my diff lock pedal. I'm assuming I'll need to remove the PTO assembly and see what's going on in there but am hoping to get some clarification on the pedal action first. The pedal is loose with no resistance when pushing down but does feel like it's engaging if I pull up on it. I hooked the rear end up with a chain to a tree, put it in 1st gear low range, and it certainly appeared that I was able to get both wheels to spin when pulling up on the diff lock lever as opposed to only one being driven without the lever up. I have only seen one person out there referencing pulling up on the lever to engage. Any thoughts on this action? I haven't looked at the mechanism internally before so I can't picture how it engages. Thanks.

Aaron
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Re: Differential Pedal, YM2000

Postby Aaron » Tue Feb 04, 2020 1:47 pm

Unless someone has installed something wrong it should only engage when pushed down. Could it just be stuck in the engaged position or does it actually disengage when you press the pedal down? You can tell for sure by jacking up the rear axle and putting it in gear with the engine off.



https://www.hoyetractor.com/CTGY/2000TRANSINT.htm
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winston
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Re: Differential Pedal, YM2000

Postby winston » Tue Feb 04, 2020 2:09 pm

Here is a picture of an FX24D. Different than yours but works the same. Seeing it in the transmission might help you understand it.
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mmckenz
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Re: Differential Pedal, YM2000

Postby mmckenz » Wed Feb 05, 2020 2:42 pm

That's a good call Aaron, I will jack the rear end up and check engagement manually. I'm curious to see how that feels though I'm still anticipating opening it up to look at the difflock mechanism for myself since something odd is definitely happening.

I've looked at that parts breakdown on the Hoye site before but winston's photo helped fill in the blanks of the actual mechanism for me. I was missing the cam effect that roll pin has on the fork in particular.

Thanks to both of you for your help.


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