NAA clutch adjustment

equinehauler · Jan 13, 2017

I just purchased a NAA with a stuck clutch. After reading all of the different posts on breaking a rusted clutch plate free, I felt that this will be the problem. Well, I don't believe this to be the case. The previous owner said it worked not to long ago, then the clutch wouldn't disengage. I brought it home and tried the suggestions to break free the clutch plate. During the trial, 3 different times I stopped the wheels completely while the engine kept running under load.

Checking the adjustment I found that the clutch release arm is adjusted to the point that it jams against the clutch pedal. There is too much slack in the pedal. Is there something to give way on the throw out bearing or shaft fork? It seams like it just need a little more room.

Thanks for any help in advance

Royse · Jan 13, 2017

There is an adjustment in the linkage.
Also make sure that the arm on the shaft going into the trans
is not cracked and spreading apart when you depress the clutch.
I'd have to go look at one of mine to be more specific.
Others may have a better recollection.

Mdparrott · Jan 13, 2017

From what you're describing, I had the same problem. Too much play in the pedal but when I adjusted it down it locked the pedal shaft against the clutch shaft linkage.

My problem was wallowed out mounting pin holes in the clutch release bearing fork. A new fork and pin fixed it, a little play in the fork is too much and doesn't allow the clutch pedal to adjust right.

Check the shaft end for cracks first like Royse said. If it's not a
Roblem there, bet chat have a loose, bent or worn release fork.

equinehauler · Jan 14, 2017

Thanks guys. Does anyone know where the secret door is to repair the fork??? :roll:

R Geiger · Jan 14, 2017

(quoted from post at 08:58:56 01/14/17) Thanks guys. Does anyone know where the secret door is to repair the fork??? :roll:

Big door, split the tractor apart

Mdparrott · Jan 14, 2017

Big door, split the tractor apart[/quote]

Easy-peezy. Take ya about 2 hrs to split it. While you're in there, go ahead and put in a new clutch and release bearing. You're looking at less than $75 in parts if you change everything.

equinehauler · Jan 14, 2017

That was my plan when I purchased it. I was just hoping for a lazy way out.

Thanks guys, This site has been a great reference for me.

n2ntractors · Jan 17, 2017

check EVERYTHING...my jubilee had a throwout bearing holder that had spun and been ground shorter and a cracked arm on the clutch shaft and the bushings in the tractor were very worn.....just because you find one thing there could be others....learned this the hard way..several splits

Mdparrott · Jan 17, 2017

(quoted from post at 11:17:37 01/17/17) check EVERYTHING...my jubilee had a throwout bearing holder that had spun and been ground shorter and a cracked arm on the clutch shaft and the bushings in the tractor were very worn.....just because you find one thing there could be others....learned this the hard way..several splits

Good point. My fork only had 1/4 inch play in it due to the worn pin. That was all it took to keep it from disengaging the clutch.

equinehauler · Jan 17, 2017

(quoted from post at 11:17:37 01/17/17) check EVERYTHING...my jubilee had a throwout bearing holder that had spun and been ground shorter and a cracked arm on the clutch shaft and the bushings in the tractor were very worn.....just because you find one thing there could be others....learned this the hard way..several splits

OUCH!!
Thanks again

equinehauler · Jan 25, 2017

With a break in the weather and spare time, I split the tractor and found my problem. Although the clutch was new enough that there wasn't any dust on it, one of the three release arms on the pressure plate lost the pin where it pivots. The pin had stuck inside the pressure plate and I wanted so bad to reinstall and re stake the end but common sense prevailed. A new clutch set is on its way as well as a new input shaft seal for the transmission since it was weeping. Although it was fun working on something so simple to disassemble, I don't want to do it again any time soon.
Thanks guys for all the advice.

NAA clutch adjustment

equinehauler

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Royse

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Mdparrott

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equinehauler

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R Geiger

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Mdparrott

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equinehauler

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n2ntractors

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Mdparrott

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equinehauler

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