Is H Drive Shaft Rotating? Need Ideas.

FBH44 · Jun 30, 2015

Still trying to trouble-shoot my H clutch / pressure plate; depressing the pedal will not always disenage the clutch pressure plate. Gears still sometimes grind. I've adjusted everyting.
I'm trying to invent a device to tell, from me sitting in the seat, if the drive shaft is indeed stationary. Latest bright idea is a pressure gage mounted on a Lift-All pipe port, when it registers pressure, the drive shaft is rotating. No pressure, the drive shaft is stopped. Correct? I'd welcome any and all better ideas.

rustyfarmall · Jun 30, 2015

It DOES take several seconds for the transmission gears to stop spinning AFTER you depress the clutch.

john *.?-!.* cub owner · Jun 30, 2015

If it is the clutch pilot bearing going bad, the drag of the liftall pump being activated will probably be enough to stop it so the gauge may not tell you much. If it is not enough to stop it, you should be able to hear the engine labor if you pull the liftall rod against plugged ports, or see the cylinder move if something is attached.

Bob M · Jun 30, 2015

If the tractor has a belt pulley, leave it engaged. It rotates/stops with the tranny input shaft and will tell you whether or not the input shaft is turning.

used red MN · Jun 30, 2015

I applaud your efforts but proper disengagement of a clutch is easy to diagnose. Once you have
the transmission shiftedinto a gear continue holding the clutch down (or completely disengaged).
Move the shifter into the nueteral position for a moment. Now try to shift into gear again. If the
gears grind your clutch is not disengageing properly. If so more adjustment or repair to the clutch
is needed. Of course this test is completed with the engine running. (Edit: and tractor stopped)

John M · Jun 30, 2015

Aint seen a letter series yet that didnt grind a little bit before it went into gear, especially from neutral. Some do, some dont. As suggested, wait a tad bit longer for the gears inside to stop moving.

Andy Martin · Jun 30, 2015

You could leave the PTO engaged, if you have a shield tape a paper towel tube to it to see if it spins.

Have you tried greasing the pilot bearing? That could help. (third timing mark, hole in bottom of bell housing)

Janicholson · Jun 30, 2015

If the clutch is dragging (if shifting out of gear when stopped, it still grinds into the next gear), the splines on the input shaft could be worn from prior use in a pattern that is just enough different than the current driven hub is finding comfortable. This leads to the disk staying in contact (usually with the Flywheel). Replacing the shaft, or carefully grinding out the notching. One other idea. If you have no hydraulic cylinder/s on the tractor, With the clutch pushed in, the control rod can be pulled, which dead heads the pump, stopping the disk. Jim

NoNewParts · Jul 1, 2015

(quoted from post at 11:46:31 06/30/15) If the tractor has a belt pulley, leave it engaged. It rotates/stops with the tranny input shaft and will tell you whether or not the input shaft is turning.

plus one
One of my H's takes a little longer to stop, so watching the pulley helps keep me patient.
If you have a guard on your pto, leaving it engaged will add some drag.
Thin tranny oil? If you are running UTF in the trans, switch back to heavy gear oil.

and even with all that...again, add patience.
A couple of my old ones with tired pilots or swollen disks,
sloooowly move the shifter..you'll feel the gear slow and stop.....never fast jams.

rhtx55 · Jul 1, 2015

1. Adjust the throttle idle speed to as low as possible.
2. Engage the PTO and or belt pulley.
3. Depress clutch pedal as far as it will go.
4. Count to 10 ( slowly)
5. Shift into high gear GENTLY.
6. THEN
7. Shift into desired gear & release clutch pedal.

techinny · Jul 13, 2015

My H does something similar but the tractor may or may not stop moving when the clutch is depressed even when going up an incline. It does not do it all the time, and is not predictable. I made sure the pedal was adjusted, I have greased the pilot bearing and thought it had taken care of the problem, but it has not. I thought maybe putting the trans in high gear and slipping the clutch to shine it up would help, nope. The clutch does not slip even when pulling the transfer sled. I plan on taking the clutch out and checking everything seeing as it is getting to the point it is unsafe. Reading this confirms my suspicion that the disk is not "sliding" on the shaft like it should, in my mind that is the only logical possibility.

techinny · Jul 14, 2015

Got it pulled apart, not any one thing sticks out and says this is the problem, the inside of the flywheel is gunked up with old grease and clutch dust, the splines on the input shaft are gunked up too. The clutch disk is not worn down to the rivets but is close. The pressure plate looks fine, and the pilot bearing feels fine. Going to clean everything up and take a closer look, probably replace the plate, disk, and bearings seeing as I have it apart.

Is H Drive Shaft Rotating? Need Ideas.

FBH44

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rustyfarmall

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john .?-!. cub owner

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Bob M

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used red MN

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John M

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Andy Martin

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Janicholson

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NoNewParts

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rhtx55

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techinny

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techinny

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