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Old 07-04-2009, 04:24 PM   #16 (permalink)
JC-jetro
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Join Date: Jul 2006
Location: Kansas
Posts: 1,336
Default Re: Need advice on NH 1715 PTO Issue

Quote:
Originally Posted by kgiovann View Post
JC, since no one had anything to add, I've been limping along with it until now where it takes 60-90 seconds to even get the tractor moving (PTO not engaged). I literally have to wait that long in gear before I start moving. Once it heats up (thermal expansion?) it's better but still no power. It sure feels like the clutch is slipping.

Can I try a simple clutch adjustment (single clutch) before resorting to writing a big check, or ordering a service manual and tackling a clutch replacment? Thanks.
Sorry kgiovannn for your continued issue. Again, with a single clutch you have transmission driven pto. PTO ORC(over running clutch) is a one way ratchet only and gives some impression of transmission type clutch. There are other flavor of PTO clutch that works off of a set of clutch disks that is hydraulically pushed together to cause the grabbing force to couple a driven shaft with a driving shaft. You do not have that. Your pto ORC either makes or not make and there is nothing in between. if your ORC is bad you still should be able to move with pto engaged or not engage. if anything is slipping, is you main transmission clutch. The clutch adjustment for single clutch is literally just a "free clutch pedal play". The only time that would hurt you if the pedal by adjustment always pushes some pressure on the pressure plate. it is the same as " riding the clutch" as some people have a bad habit of leaving their left foot on the clutch pedal. doing so for a long time causes premature wear of the disk material hence less grabbing force. I understand that there is a rubber hand hole on 1715 as well that you might be able to look at disk itself. The disk thickness on either side of middle steel disk should be around 3/16". it'll be obvious if the clutch plate is consumed.

Forger the pto for a minute, can you put the tracor in gear when cold and be able to move without hesitation. Report and we may be get a bit closer.

If the release bearing is not touching the fingers on pressure plate then there is no way adjusting the " clutch free play" is going to add grabbing force to worn out clutch disk. If I'm losing you somewhere let me know and I'll explain.

JC,

Ps. One of the guys ending up changing his pto ORC on 1715. He said 1715s had an issue with their orc. bad part of it that rear diffy needs to be split.

You can make a gage to measure from a piece of card board. My clutch plate thickness is 95% of original.


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