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Discussion Starter #1 (Edited)
Sigh...... So the second time I mowed my yard, which is roughly 1 1/4 acres of grass.... I noticed a 'very slight'.... and I do mean subtle, 'Clatter' when I turned the PTO off. I didn't think much of it as it was VERY minimal. Probably made the sound of 2 seconds after shutting the PTO off.

Got out the 1025R yesterday (my 3rd mowing) and mowed about half of my lawn when all-of-a-sudden, I hear this Gawd Awful metal sounding clatter under the mower deck. I immediately turned the PTO off and the sound disappeared.

I turned the PTO back on and 'boom'.... the metallic clatter instantly started again.

I then turned it back of and on quickly... and same thing, so I turned off the PTO and drove my new, unusable tractor back into my polebarn.

Walked up the hill to the neighbors house and borrowed his 1026R and finished the job.

I did look under the tractor at the 'auto-connect' mechanism and the driveshaft and it appeared to me that everything was 'in-line' from a visual inspection. But, then again, I don't know much about it.

I did read another post about making sure that the deck and the tractor were in alignment when you installed the mid mount auto connect mower.

Thing is: My tractor was delivered to me with the mower already installed, and I have not taken it off since delivery. So, any screw-up is on them, not me.

Any ideas what might have gone wrong? I am calling the dealer tomorrow morning and having them come pick it up. I am not so sure about JD's quality control.... first, it's panels that fit about as well as a 1975 Chevy... which cannot be adjusted to anything close to visual acceptability... and now the mower goes to heck on the 3rd mowing. I am trying to remain calm, but must admit I am a bit frustrated. I want to be a proud owner and enjoy my purchase... bottom line.

Also: Just an observation.... but I think both the 54" Auto Connect and the 60" Auto Connect decks cut grass poorly. After cutting with mine... and finishing with my neighbors 54" deck... there is a LOT of grass strands that stick up all over the yard like the decks sort of 'blew the grass down' and didn't 'lift and cut'.... reminded me of the bad haircuts I got from my mom as a kid. My John Deere X340 54" deck cut far better.

I will say, that when I was looking at sub-compact tractors, the Kubota Dealer said that he questioned the 'auto-connect' system of JD.... said that the PTO Shaft used half as many 'splines' as the Kubota. He wasn't sure if that allowed for some 'slop' or 'wiggle room' when the driving over the mower to connect the deck to the tractor or what.... Kubota has a auto connect function, but it seems very clunky and much more difficult to use than JD's. Almost like an engineering after-thought. But, they do use more splines on the PTO shaft which would seem to my simple mind to make for a more secure connection??

Curious what thoughts you all might have on what went haywire with the mowing deck??? Thanks.
 

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JF....Let the dealer fix it. Did you engage/disengage the pto at low idle? Concerning the poor cut quality....I had a 455 that did that after I messed up and put on one of the blades upside down. That might be the problem. Good luck in getting everything working properly.
 
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When you engage the deck, are the blades turning or not? The auto connect adapter on the deck gearcase input shaft might have come loose and is spinning on the shaft or could be stripped. Might be an internal failure in the gearcase. Have you checked to see if one of the blade nuts might have come loose and the blade is causing the noise? As for leaving sprigs of grass, I have not had any complaints from customers at our location. The first couple we sold, I had to go back and readjust the deck level linkage but after that, I knew the tricks to get them adjusted correctly during initial setup. I Have a 1025 w/60D and have noticed the higher I cut, the quality doesn't seem to be as good. Speed also plays a factor.
 

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Discussion Starter #4
JF....Let the dealer fix it. Did you engage/disengage the pto at low idle? Concerning the poor cut quality....I had a 455 that did that after I messed up and put on one of the blades upside down. That might be the problem. Good luck in getting everything working properly.
I am certain I had the throttle at low idle, or very close to it... I know the manual calls for low rpm engagement/disengagement.... but I can't be certain the exact rpm. If it was not 'quite' at the exact specified rpm, would that cause damage?

If so.... what would happen if the mower was running at operating speed rpm, and you moved enough in your seat that the seat safety switch deactivated the mower? Wouldn't that essentially be the same as disengaging the PTO at too high a recommended RPM?

That might be a good case for eliminating the seat safety switch? To protect your equipment?
 

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Discussion Starter #5
When you engage the deck, are the blades turning or not? The auto connect adapter on the deck gearcase input shaft might have come loose and is spinning on the shaft or could be stripped. Might be an internal failure in the gearcase. Have you checked to see if one of the blade nuts might have come loose and the blade is causing the noise? As for leaving sprigs of grass, I have not had any complaints from customers at our location. The first couple we sold, I had to go back and readjust the deck level linkage but after that, I knew the tricks to get them adjusted correctly during initial setup. I Have a 1025 w/60D and have noticed the higher I cut, the quality doesn't seem to be as good. Speed also plays a factor.
I am not sure if the blades were turning or not when I re-engaged the PTO after the initial noise occurred ... when I heard the clattering noise, I shut off the PTO... and then re-engaged the PTO; I did so for just a split second to see if the noise was an aberration... when it clattered upon re-engagement, I immediately shut it off again and drove it back to my pole barn.

I didn't look underneath the deck at all after that.... I just borrowed my neighbors mower and finished the job.:dunno:
 

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Check to make sure the blades are install correctly. It is possible to install & tighten a blade without it being installed over the spindle shoulder. It happened to me.
I mowed at least once with it that way. The second time I mowed with it, it started making the clanging noise. I took the deck off & found 2 blades were hitting against each other . I installed the blade correctly & the problem when away.
 

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From the sounds of it you could have one or more problems. Blades, spindles, drive shaft, auto connect, gear box. These are also easy to check but you have to or should take the deck off to do so. Seeing as you already called your dealer I'd let him check it but would want to know what it was and how it was fixed.
 

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Hi JoeFriday 1979
Let the dealer sort out the problem with the deck. As far as the Kabota dealers statement "the Kubota Dealer said that he questioned the 'auto-connect' system of JD.... said that the PTO Shaft used half as many 'splines' as the Kubota " This is only sales spin, if it was a problem I dare say there would be plenty of postings on this site, " 'slop' or 'wiggle room' " has more to do with fit tolerance and spline engagement length than the number of splines.
Regards John
 

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Discussion Starter #11 (Edited)
Update - cause of clattering deck identified by dealer

Hi -

Just got a call from the dealer regarding the clattering noise on my 60D mowing deck. Service Manager said that the 'Auto Connect' apparatus that is mounted under the tractor frame (not on the deck itself, apparently) was missing 2 plastic bushings - - wasn't sure if they were never installed or fell off.

She said that the absence of these bushings caused 'vibration.'

I asked if it in any way would have 'chipped, gouged, nicked, or otherwise' damaged my PTO splines on the tractor or the gearbox on the deck... and she said 'no, not at all' and that those parts weren't part of or in contact with the auto connect mechanism.

I thought the 'auto connect' was what the tractor PTO splines/shaft inserted into? Wouldn't that cause some sort of damage, banging around loosely and making the metallic clattering sound I was hearing?

Seems like it can't be a good thing...maybe some of you folks more knowledgeable on how that all works can do a better job deciphering this for me.

PLASTIC BUSHINGS MISSING ARE SHOWN IN THE ATTACHED 'AUTO CONNECT' SCHEMATIC MISSING BUSHINGS ARE NOTED WITH THE 'GREEN ARROW'.

Could this have caused any internal 'tractor' or 'mower deck' damage? Damage to gears, PTO splines, etc???

Thanks.
 

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No, won't cause any damage to the unit it's self. It can damage parts #9 and the rod it clamps to which is what happened to mine. When you get it back check and make sure they are tight on the rod and the rod has not been damaged. On mine I don't even have the plastic bushing.
 

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Discussion Starter #13
No, won't cause any damage to the unit it's self. It can damage parts #9 and the rod it clamps to which is what happened to mine. When you get it back check and make sure they are tight on the rod and the rod has not been damaged. On mine I don't even have the plastic bushing.
Thanks - I am surprised then, that yours doesn't rattle like crazy without the plastic bushing! Do you have any noise when the mower is running?
 

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Discussion Starter #15
Plastic bushings started with the 2015 yr models. Their sole purpose is to keep those 2 aluminum straps from wearing a groove in that steel shaft.
Billy - do those plastic bushings just 'pop' out at random, or would you suspect that they forgot to put them there in the first place.... and would 3 mowings without them cause 'grooves' to be worn in the shaft? Or not long enough to do that? I would think the dealer would have inspected the affected parts before replacing them - probably nothing to worry about? Thanks.
 

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Billy - do those plastic bushings just 'pop' out at random, or would you suspect that they forgot to put them there in the first place.... and would 3 mowings without them cause 'grooves' to be worn in the shaft? Or not long enough to do that? I would think the dealer would have inspected the affected parts before replacing them - probably nothing to worry about? Thanks.
They are slit so they can be spread apart and installed. Probably forgot to install them during dealer setup.
 

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Thanks - I am surprised then, that yours doesn't rattle like crazy without the plastic bushing! Do you have any noise when the mower is running?
Nope, no noise. When I had mine replaced I made sure that they were tight when I got it back. Matter of fact, I took it apart and put it back together...tight.

Billy - do those plastic bushings just 'pop' out at random, or would you suspect that they forgot to put them there in the first place.... and would 3 mowings without them cause 'grooves' to be worn in the shaft? Or not long enough to do that? I would think the dealer would have inspected the affected parts before replacing them - probably nothing to worry about? Thanks.
Depending on how long your mowing's are, it could. If I was you I would remove the deck and then check it out. That way you know.
 
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