Ford 1715 pto problem

[Ausjs1]

Having a problem with a 1996 ford (new holland) 1715 pto

Spent some time looking at other posts about similar issues and don't see the same type of problem. *

Pto will not stay engaged while using brush hog. *

I have owned the tractor about 6 months and run a finish mower and brush hog behind the tractor. *It worked great this summer for the finish mowing but last weekend it started having problems staying engaged while using the brush hog.

Here is what I have tried to diagnose the problem.
With the tractor in neutral, clutch then engage pto and let clutch out. *Pto will run and stay running as long as rpm are gradually increased or decreased. *When I try to more rapidly increase or decrease rpm the pto becomes disengaged. *It does not seem like the pto lever is popping out of the engaged position because the same thing happens (as stated above) weather I hold the pto lever down or not. *It's like something is slipping internally. *

One other thing to note that I don't think is important but will mention. *I think the clutch it original, not sure how many hours but if I was guessing its probably around 1500. *The tractor will hold gears great in low and med range, in high range it slips a little when the clutch is let out but after it gets rolling it holds as it should.

Any ideas? *

Thanks in advance JS
** *

 

[JC-jetro]

Welcome to TBN Blue JS,

Correct me if I'm wrong. I think you have a live pto. If that is the case then You would not need or have an internal ORC (over running clutch). You would have internal ORC if you have transmission driven pto.

I think your pto clutch is slipping at higher rpm. The fact that pto coupler does not appear to disengage per your observation is why I think your pto disk is slipping. There is nothing else there other than pot shaft, pto clutch, pto coupler and pto final shaft. There might be issue with broken gear and things like that but then you should hear a lot of noise and you will not have intermittent operation either. Do you have an access to main clutch for adjustment from the side of transmission housing? I hope your problem lies in clutch adjustment. if you lost pto clutch surface then your final fix might be to split and replacing clutch pack, much labor and pricey dual clutch pack. I think you have a tired clutch pack.

JC,

 

[Hooked_on_HP]

I am guessing you have a dual clutch. Single and dual were available in your tractor. Either your pto clutch is out of adjustment or wore out. If you have a service manual it will explain how to adjust it. If you are mechanicly inclined it's not to hard to adjust. You can do a search on this forum for dual clutch and get more info.
Bill

 

[audoguy]

Having a problem with a 1996 ford (new holland) 1715 pto

Spent some time looking at other posts about similar issues and don't see the same type of problem. *

Pto will not stay engaged while using brush hog. *

I have owned the tractor about 6 months and run a finish mower and brush hog behind the tractor. *It worked great this summer for the finish mowing but last weekend it started having problems staying engaged while using the brush hog.

Here is what I have tried to diagnose the problem.
With the tractor in neutral, clutch then engage pto and let clutch out. *Pto will run and stay running as long as rpm are gradually increased or decreased. *When I try to more rapidly increase or decrease rpm the pto becomes disengaged. *It does not seem like the pto lever is popping out of the engaged position because the same thing happens (as stated above) weather I hold the pto lever down or not. *It's like something is slipping internally. *

One other thing to note that I don't think is important but will mention. *I think the clutch it original, not sure how many hours but if I was guessing its probably around 1500. *The tractor will hold gears great in low and med range, in high range it slips a little when the clutch is let out but after it gets rolling it holds as it should.

Any ideas? *

Thanks in advance JS
** *

Hi JS,

I have the same tractor and am more than willing to help you diagnose the issue. Given the drive train of the tractor (I have had mine a part a lot) the power flow is as follows Engine -> Main (single) clutch -> PTO Engage Lever -> ORC -> Output shaft.

Please look here:

http://www.tractorbynet.com/forums/...rating/144014-ford-1715-power-take-off-3.html

There is a diagram of the power flow through the rear differential. Basically, if you have power to the drive wheels, and the PTO is engaged, there is only one culprit and that is the overrunning clutch.

They are not so expensive, but are horribly difficult to change. There was actually a service bulliten out on the original ones that came with the tractors. I have replaced mine and the PTO has worked fine since.

All the best

Audo

 

[dhartley]

Do you need to split trans from the rear to change out the oneway bearing or clutch. Other words do you need to take it all apart and if so do you have instructions.

 

[JC-jetro]

Do you need to split trans from the rear to change out the oneway bearing or clutch. Other words do you need to take it all apart and if so do you have instructions.

I hope you realized that this thread was dead for 2 years and original poster has only one question and never returned.

JC,

 

[double hunter]

I realize this is an old thread, but Im having the same probelm with a 1715 I just got,,pto will engage but will ot stay engaged, it works good as long as i am going forward, but quits when you rev-forward, the pto lever is sloppy with no positive engagement,,feels like the detente ball is not clicking into the grooves,,ai am failry mech inclines,,just need to know where to start, do u have to take the top off the trans,,there is also a plate on bottom of the tran,,i helped a buddy fix his Kioti a while back that had the same problem and we took the pto cover plate off and accessed it there,,just looking at NH parts diagram it looks like the shift fork is at thefront of trans case,,any hepled appreciate,,I hope audoguy sees this as he looks like he's been thru this

 

[double hunter]

Relicked that calf and the pto shift fork is at the rear,,appears the detente ball is at the front, the pictures in this thread are great,,just wondering if the degtente ball can be accessed from the plate on the bottom