Go BottomJD 4300 pto problems
 | Les H.
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2000-09-29 20155
Just got a new 2000 JD 4300 and it has been in the shop more than at my home. Started with a hydraulic leak which they fixed and now has two other problems. The main one is the rear pto engagement lever. I have no idea how this is to operate but on the JD 5400 I used to have, it was a long lever that you pushed down to engage and pulled back up to disengage. It operated smoothly in both directions with very little resistance. On this 4300 when you push the handle foreward it seems to be hard to push and kind of clicks into engagement. Here comes the real problem. When you pull back to disengage you have to pull hard with much resistance and then all of the sudden it lets go and disengages so fast that the belts on my mower squeal and the blades on my rotary cutter slam together. I had the dealer come take a look and they only said it is not supposed to operate that way and they will come get it and take a look. What is the normal feel and operation of this engagement lever?????? Anyone who can answer this please use my email address to respond.
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| Rob Munach
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2000-09-29 20172
Why is it that disengaging the PTO on some tractors also stops the implements rotation instantly? It seems like a good way to overstress the tractor and the implement. When I disengage the PTO on my JD790 w/ Live PTO, the implement slowly coasts to a stop. ....
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| DFB
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2000-09-29 20179
On my 4100 HST there is are 2 interrelated hydraulically operated systems consisting of a PTO Clutch and a PTO Brake. According to the factory service manual the clutch and brake are simultaneously used to disengage and positively stop the rotation of the PTO. This is controlled by a solenoid that is energized when the panel switch is activated by the operator. The clutch is used to disengage the output shaft from the engine and the brake is engaged via a spring which had been held back by fluid pressure. I was told by my on site technician to get an over running clutch unit to save on brake wear. Especially when I use my rotary cutter. Btw my machine has been in the shop for a week now for engine oil leaks. Seems that there are no gaskets used just RTV sealer. NOTHING BLEEDS LIKE A DEERE! ....
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| Larry in MI.
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2000-09-29 20182
DFB described the 4100 pto braking action very well. The only thing that I have noted that is different is the mid pto action. The mid pto on my 4100 does not seem to have the braking action that the rear pto has. This is probably to prevent the mid mount mower deck comming to a screaching halt. The rear pto does cause the rototiller to stop abruptly when I turn off the pto switch. This may not be of much value to you because the 4300 probably has a different set up. ....
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| DFB
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2000-09-30 20193
Larry, I would guess that the reason that the mid PTO does not slow as suddenly as the rear is probably due to the fact that it is turning a lot faster. Maximum 2150 rpm vs. 580 rpm. I haven't had opportunity to use my mid pto yet. I would think it would be like stopping a car or truck. The faster your speed the longer it takes to stop. I would also reason that the longer the braking is applied before coming to a complete stop,the faster the friction material would wear down. The overruning clutch seems like a good idea to me and I will eventually get one for use with my cutter and tiller. Your definately right that this has no bearing on why the engagement lever is hard to move on the 4300. ....
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