Mowing Kubota ZD1511 Only does parked regens!

Woodybird · Jul 6, 2018

So I love my new ZD1511 but these parked regens are driving me nuts! I look like an idiot sitting in the middle of my side acreage waiting 30 minutes for it to complete. Every 11 hours on the nose it goes from no lights to warning buzzer demanding a parked regen. The dealer is coming out Tuesday afternoon to hook up to the computer but anyone else having this consistent of a problem? I run full throttle and I mow for about an hour and 15 minutes at one time and always check the display before I shut it off.

RjCorazza · Jul 7, 2018

Hopefully it’s just a software fix. I was considering selling my (2) older ZD mowers and getting a new one, but I really like having one as a backup machine.
On any machine that size 30 minutes seems like a long time for a regen. Perhaps that’s also an issue. My L4060 usually completes a regen in less than 15 minutes. Anyway.... hope you get it squared away soon.

Greenfield Dave · Jul 7, 2018

Please let us know what happens. I can't imagine it was designed to work that way.

Woodybird · Jul 10, 2018

Well, the tech came and found a code in the computer for a DPF error. He cleared the code and ran a regen. The engine increased in rpm and held there while white smoke was produced from the exhaust. It then idled down held for awhile and then reported the regen was done with no codes. We will see what happened but I have never experienced the high engine rpm and smoke. His guess was it had never correctly completed a regen. So hope for the best, I guess.

RickB · Jul 10, 2018

For whatever reason it seems that these machines need a forced regen the first time.

Cable Guy · Jul 16, 2018

Dealer I bought from did a forced regen before I took delivery of my 1511.
I have had no issues at all with 115 hrs showing. It's been through a lot of regens for sure. About one every 15 hrs.

Woodybird · Jul 16, 2018

I hope that is my experience. All my Kubota equipment has been great. Just hope the ZD1511 isn’t my first Kubota I regret buying. Time will tell.

Maxify55 · Jul 17, 2018

THAT'S only one of the reasons I bought my Z from Ferris {IS2600Z}.

19hp Yanmar is just under the rule for DPF and/or DEF.

My LS tractor's regen worked flawlessly.
Once I found about the issue with 2K rpm working range.

sunnyside360 · Jul 17, 2018

I have a ZD1511 which I bought new last year. It now has just over 100 hours. The first regen occurred at about 11 hrs and it failed to complete successfully. Dealer tech came over and did a park regen and it has operated fine ever since performing a regen about every 11 hrs. Wouldn't even know it's doing a regen except the indicator is illuminated. This ZD1511-72 mower is much nicer than the previous ZD331-72 I had. From what I've read, it's not uncommon for a problem on the first regen for these engines. Hopefully, yours will be free of issues from now on.

My ZD1511 uses a little more fuel per hour than my ZD331, but the ZD1511 mows faster, i.e., more area per hour.

Woodybird · Sep 4, 2018

Update, my unit did it’s first auto regen since the tech cleared the computer! Only problem was the light illuminated right as I got done mowing. So there it sat for about 15 to 20 minutes running in my driveway to finish the regen. I didn’t want to stop it out of fear it would code out again. Makes no sense to me but whatever. I probably should of got the 1211 instead, oh well. Weird that it regens consistently at every 11 hour interval.