72D on Gen2 2032R Rattles and Shuts Down Mid PTO
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Thread: 72D on Gen2 2032R Rattles and Shuts Down Mid PTO

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    72D on Gen2 2032R Rattles and Shuts Down Mid PTO

    I just got the 72D and auto-connect, mowed with it the first time last week for 6 hours total, had one issue when I first started where the mid PTO would not start. I shut the tractor down, and this issue seemed to sort itself out, continued with another 5.5 hours of mowing with no issues.


    Today I took the tractor out to cut a small patch of grass, arrived at the location, engaged the deck as normal, moved about 1 foot forward, and heard a rattle and the mid PTO shut down, with the RIO shutdown message on the LCD screen. I backed up, checked the ground for any rock or obstruction I may have hit, and found nothing, so I attempted to engage the deck again. There was a consistent rattle, like the blade was hitting something every revolution. I shut it down, got off the mower, and rotated the blades by hand. I noted a spot in the rotation where I could feel resistance, and then it would give and continue with its revolution. I checked above and below the deck and found nothing interfering, so I took the tractor back to flat ground and removed the deck. Once I removed the deck, I stood it up on end (that thing is heavy by the way) and rotated the blades by hand, no interference, they spin free all the way around. I set the deck down and rotated the blades and pulleys by pulling the belt, no interference. I went back to the tractor, lowered the mower linkage, shifted the PTO to 540 and spun the mid PTO shaft by hand, no interference, it spins smoothly. I reconnected the mower deck, and spun the blades and belt by rotating the PTO shaft at 1" cut height, 3", 4", 5" and 6". The interference didn't return until I got to the 6" cut height, which is also the transport position. This is incredibly irritating, because that is the height I need to mow at. At this point, I noticed the reverse sensor seemed to be loose:

    https://youtu.be/9HteTY0PHwY

    I assume this is not how it was designed, and tightened the nut, though I doubted this would fix the issue. Once it was tight, I started the tractor again, engaged the mid PTO, and had the same result as before, rattling before the machine shut off the mid PTO with the RIO shutdown message. I'm tempted to take this mower to the dealer and dump it in front of their lot, I don't have time to spend working on or transporting a brand new 5 thousand dollar mower that only has 6 hours on it. I have a feeling this is a workmanship issue, as during the first 4 hours of mowing, I found one of my rear wheel bolts in the field. That was a lucky find, so I re-torqued all of them, but this is starting to push my limits as to what I find acceptable.

    Any ideas as to what is wrong with the mower?

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    Either you are hitting the reverse petal on accident, or this is an issue on the tractor. You could just do this, and it would probably fix the issue:

    2017 John Deere 2032R and 2038r disabling rio - YouTube
    2018 2038R, R3 Radials, 220R, 72D Command Cut & Mulch Kit, Wheel Spacers, Premium Lighting, Rear Dual SCV's.

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    That is very cool that that is all done through software. I am definitely not hitting the reverse pedal, but I don't think that will fix my issue, as I can feel the rough spot causing the knocking sound. Disabling the shutoff would just allow the machine to run while possibly damaging itself
    Last edited by The Satch; 06-19-2019 at 11:37 PM.

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    Quote Originally Posted by The Satch View Post
    That is very cool that that is all done through software. I am definitely not hitting the reverse pedal, but I don't think that will fix my issue, as I can feel the rough spot causing the knocking sound. Disabling the shutoff would just allow the machine to run while possibly damaging itself
    Yeah, if its making noises like that, somethings wrong. I wouldn't run it anymore, until the issue is found. So is the noise is coming from the deck, or tractor? I think someone had a bad gear box on their 72D right out of the gate.
    theduke and The Satch like this.
    2018 2038R, R3 Radials, 220R, 72D Command Cut & Mulch Kit, Wheel Spacers, Premium Lighting, Rear Dual SCV's.

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    At this point, I can't figure out where it's coming from, because when they are separated, neither seems to have an issue. I will be contacting the dealer tomorrow, I didn't think this would be a quick fix, but I was hoping someone might have some insight.

    Is my evaluation of the reverse sensor correct, that nut should have been tightened down to fully secure the sensor? Or is it supposed to ride with all the slop in the video?

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    Since you are getting the RIO Shutdown, I would try the disabling it and test it. With it turned off it wouldn't mater what that sensor is doing.

    In the end, you probably want it disabled anyway.
    2018 2038R, R3 Radials, 220R, 72D Command Cut & Mulch Kit, Wheel Spacers, Premium Lighting, Rear Dual SCV's.

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    Herminator's Avatar
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    Quote Originally Posted by The Satch View Post
    At this point, I can't figure out where it's coming from, because when they are separated, neither seems to have an issue. I will be contacting the dealer tomorrow, I didn't think this would be a quick fix, but I was hoping someone might have some insight.

    Is my evaluation of the reverse sensor correct, that nut should have been tightened down to fully secure the sensor? Or is it supposed to ride with all the slop in the video?
    What you are moving in the video is the electromagnetic for the cruise control. It sucks up against the silver plate and it is the clicking you hear when up you engage cruise. I am not sure where the reverse switch is but I suspect it is back by the transmission. I think Homestead joes came with a bolt in backwards where the aluminum female pto on the tractor mounted to the arm it rides up and down on. Could it be backwards and causing a bind of the pto. I would also make sure the set screw for the male end of the pto is tight. Some have not been.
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    sounds like I need to put that nut back where it was! good to know about the cruise sensor. I will look into the set screw and the female PTO, but I am hesitant to disable the RIO since that would require running the tractor, and I don't want to be found responsible if this ends up needing to go back to the dealer.
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    Well, you nailed it Herm, bolt in backwards interfering with the PTO yoke when raised to full height. The interference was caused because I was mowing on a side slope, and the minimal space due to the incorrect bolt orientation was taken up when the deck took up the slack in the couplings towards the downhill side.

    It was this bolt that holds the auto-connect frame, item 39 on the PC13080 exploded parts diagram (I couldn't figure out how to post the diagram):
    Click image for larger version. 

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    The damage on the PTO yoke is about the same all the way around, not a lot of metal removed, but some. The swap took about 2 minutes, but it would have gone faster if the mechanic hadn't put the bolt in with an impact and rounded off the nut:
    Click image for larger version. 

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ID:	691956
    Click image for larger version. 

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    While going through the parts diagram, I also found out that I was never supplied with the two spring locking pins (item 12, same diagram) that secure the pawls from flipping forward and releasing the rear of the mower deck. I am going to ask my dealer to replace the nut (item 41), and supply the spring locking pins that I should have received when they installed the mower. I'm not sure what to ask them about the damage to the PTO shaft, I don't think it will have a reduced life span, so maybe I will ask for black touch-up paint. I did call my dealer this morning to let them know about the issue, but they had no clue what was causing it, and wanted to get the tractor down there, and I'm not really willing to lose it for a week right now when I have a ton of projects that I need it for.

    The RIO issue is still present, but I have a hunch it has to do with creep in the hydrostatic transmission. My thinking is that if the creep is biased slightly towards reverse, this would cause the RIO shutdown safety to disable the PTO. Does that make sense, or am I going the wrong direction?
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    HomesteadJoe's Avatar
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    Quote Originally Posted by The Satch View Post
    Well, you nailed it Herm, bolt in backwards interfering with the PTO yoke when raised to full height. The interference was caused because I was mowing on a side slope, and the minimal space due to the incorrect bolt orientation was taken up when the deck took up the slack in the couplings towards the downhill side.

    It was this bolt that holds the auto-connect frame, item 39 on the PC13080 exploded parts diagram (I couldn't figure out how to post the diagram):
    Click image for larger version. 

Name:	tQS44wH.jpg 
Views:	4 
Size:	1.04 MB 
ID:	691952

    The damage on the PTO yoke is about the same all the way around, not a lot of metal removed, but some. The swap took about 2 minutes, but it would have gone faster if the mechanic hadn't put the bolt in with an impact and rounded off the nut:
    Click image for larger version. 

Name:	KP19UWz.jpg 
Views:	4 
Size:	638.4 KB 
ID:	691956
    Click image for larger version. 

Name:	GCT9Guo.jpg 
Views:	4 
Size:	636.8 KB 
ID:	691954

    While going through the parts diagram, I also found out that I was never supplied with the two spring locking pins (item 12, same diagram) that secure the pawls from flipping forward and releasing the rear of the mower deck. I am going to ask my dealer to replace the nut (item 41), and supply the spring locking pins that I should have received when they installed the mower. I'm not sure what to ask them about the damage to the PTO shaft, I don't think it will have a reduced life span, so maybe I will ask for black touch-up paint. I did call my dealer this morning to let them know about the issue, but they had no clue what was causing it, and wanted to get the tractor down there, and I'm not really willing to lose it for a week right now when I have a ton of projects that I need it for.

    The RIO issue is still present, but I have a hunch it has to do with creep in the hydrostatic transmission. My thinking is that if the creep is biased slightly towards reverse, this would cause the RIO shutdown safety to disable the PTO. Does that make sense, or am I going the wrong direction?
    Wish I saw this thread earlier. Glad Herminator picked-up on this. I had several issues with the poor quality setup of my 72D by my dealer. Happy to see you’ve got it fixed. That deck mows so nice! Good luck

    Sincerely
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