until i replaced the clutch disc, the 3 pt hitch would operate up/down while the clutch was depressed and tractor moving or not moving. now it will only work (the hydraulic pump) when the clutch is engaged fully..any ideas on what i missed during the re-assembly. I have studied the manual diagrams and i cant see where the pump got its power before the rebuild with the clutch disengaged.
3-Point Hitch Rhino 324 3 pt wont lift with clutch in
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greg_g
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PTO pump?
//greg//
//greg//
the pump drive also runs the pto. the 3 pt hitch will raise and lower now only when the clutch is released (engaged), so the pump must be running off the clutch driven shaft now. before rebuilding the clutch, the pump ran all the time, even when the tractor was stopped and the clutch depressed (dis-engaged).
greg_g
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Thought so. In a PTO driven hydraulic system, the aux PTO shaft drives the main hydraulic pump. Steering is typically assisted by a second pump, engine-driven. The main PTO drive shaft is nested inside the main drive shaft. Inside the housing, this main shaft drives two other shafts; the splined stub that drives your PTO implements, and the aux PTO shaft which resides a few inches the external stub. On engine driven systems, this shaft is covered with a plate. On yours the pump is mounted in place of the plate. There should be a pair of steel lines about an inch in diameter that carry hydraulic fluid to/from the pump.
What you describe suggests the original clutchpack was mal-adjusted to the point where the PTO clutch would not disengage from the flywheel. On rare occasions, an otherwise properly adjusted PTO disc can freeze to the flywheel if/when the the PTO remains engaged during extended periods of non-use, particularly if it's parked outdoors. For whatever reason, your original PTO disc was apparently not releasing. The clutch work you did resolved that issue, because your description now describes a properly working PTO clutch.
//greg//
What you describe suggests the original clutchpack was mal-adjusted to the point where the PTO clutch would not disengage from the flywheel. On rare occasions, an otherwise properly adjusted PTO disc can freeze to the flywheel if/when the the PTO remains engaged during extended periods of non-use, particularly if it's parked outdoors. For whatever reason, your original PTO disc was apparently not releasing. The clutch work you did resolved that issue, because your description now describes a properly working PTO clutch.
//greg//
that is the conclusion i drew, however i think there is only one clutch driving one shaft that feeds the transmission and the pto drive.
so on a normal tractor, can you spin the pto while sitting still with the clutch in or not?
the reason the clutch on this Rhino was rebuilt was that it had set up all summer and had rusted the clutch plate to the point that the clutch would not release at all.
so on a normal tractor, can you spin the pto while sitting still with the clutch in or not?
the reason the clutch on this Rhino was rebuilt was that it had set up all summer and had rusted the clutch plate to the point that the clutch would not release at all.
greg_g
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Hmmmm. A single stage clutch on a 32hp 4wd Chinese tractor would be unusual, they're far more commonly imported into this country in 2 stage clutch configuration. With a single stage clutch there's either no PTO at all, or one that's engaged simultaneously with the drive clutch. A two stage clutch on the other hand engages the PTO during the first half of the upward pedal travel, followed by the drive clutch during the 2nd half of pedal travel.
The Chinese two stage clutch has the main drive clutch and PTO clutch combined into a single cast housing. The PTO friction disc is positioned between the clutchpack and the flywheel, the flywheel representing the 2nd pressure plate. The actual clutchpack itself then is a single case housing that includes the other PTO pressure plate, the main drive friction disc and pressure plates, the springs, and the release fingers.
Which one sounds like what you saw during your clutch repair?
//greg//
The Chinese two stage clutch has the main drive clutch and PTO clutch combined into a single cast housing. The PTO friction disc is positioned between the clutchpack and the flywheel, the flywheel representing the 2nd pressure plate. The actual clutchpack itself then is a single case housing that includes the other PTO pressure plate, the main drive friction disc and pressure plates, the springs, and the release fingers.
Which one sounds like what you saw during your clutch repair?
//greg//
Hi, the Rhino 324 is a 2 stage clutch, and should operate each system.
Push it in part way and the drive releases, push it in all of the way and it releases both.
I have mine out now and no photos to get it back together, but your issue is one of adjustment of the outermost bolts on the fingers (furthest from the TO bearing) I once played with mine until it worked, but other than making sure they are all the same, I do not know how to properly adjust it.
Push it in part way and the drive releases, push it in all of the way and it releases both.
I have mine out now and no photos to get it back together, but your issue is one of adjustment of the outermost bolts on the fingers (furthest from the TO bearing) I once played with mine until it worked, but other than making sure they are all the same, I do not know how to properly adjust it.
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greg_g
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Well, don't sell your Rhino short. Far as I'm concerned, it's a normal tractor. Here's what's normal: on a tractor with a 2 stage clutch, you can put the tranny in neutral, start the engine, engage the PTO lever, then let out the clutch. Releasing the clutch is what "turns on" the PTO. Your tractor will then just sit there not moving, but the PTO will be turning. Kick in the clutch half way, the PTO still turns. Push it in all the way, it stops. You may see some rotation of the splined stub, but that's just parasitic. If there was a mower attached for example, that would be enough resistance to stop that parasitic rotation.
Never owned a tractor with a single stage clutch AND a PTO, but here's what I consider normal: the PTO is independent of the clutch, and essentially remains engaged full time. As long as the engine's running - whether the tractor is moving or not - the PTO shaft is turning under power. Kicking in the clutch pedal doesn't stop the PTO.
//greg//
