kubotacres
Gold Member
Where is the idle rpm adjustment located? I've always noticed that my tractor idled rather low compared to my previous tractors. I need to idle at 800 RPM and Max at 2600 according to my dealer. Thanks!
L3560 Idle Adjustment location
- Thread starter kubotacres
- Start date
SDT
Veteran Member
jeff9366
Super Star Member
- Joined
- Jan 14, 2011
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- 12,727
- Tractor
- Kubota Tractor Loader L3560 HST+ ~~~~~~~~~~~~~ 3,700 pounds bare tractor, 5,400 pounds operating weight, 37 horsepower
Yes. The Kubota dealer may be able to increase idle by connecting a laptop to the electronic control module.
If you run (not dealer) through intelipanel settings on dashboard to engage STALL GUARD on the HST+ transmission, idle may increase due to order from STALL GUARD mode. Engaging Stall Guard and other HST+ modes is covered in the L3560 Operator's Manual.
If you run (not dealer) through intelipanel settings on dashboard to engage STALL GUARD on the HST+ transmission, idle may increase due to order from STALL GUARD mode. Engaging Stall Guard and other HST+ modes is covered in the L3560 Operator's Manual.
OP
kubotacres
Gold Member
They are checking and gonna call me back. I honestly thought it would be mechanical. I'll post what i find.
Fallon
Super Member
Any Kubota & most any tractor over 25hp in the past 5 years is going to be electronically controlled.
jjp8182
Platinum Member
I'm not sure I see where the issue/problem is unless the engine is running rough (e.g. experiencing unstable combustion) at idle.
As far as I'm aware most (though not all) modern diesels are electronically controlled given the flexibility in control it allows. I'll admit I haven't spent a whole lot of time crawling around the engine in the L3560, but from what I've seen of the engine and electronic features I'd have hard wrapping my head around there being much (if any) mechanical controls on it.....
That being the case the "throttle" is really more of an RPM setting control than an actual throttle controlling fuel flow as the electronic controller should be matching the fuel flow to the load the engine is seeing (independent of the engine RPM for the most part).
......which is pretty much why I tend to just set the throttle to "full open" and let the engine/electronics do what they need to do (about the only time I lower the engine RPM is when I want/need to reduce the noise for communication purposes).
It'll be interesting to see what you find out (may give me more reason to go crawling around the engine just for the sake of learning about that specific engine design).
As far as I'm aware most (though not all) modern diesels are electronically controlled given the flexibility in control it allows. I'll admit I haven't spent a whole lot of time crawling around the engine in the L3560, but from what I've seen of the engine and electronic features I'd have hard wrapping my head around there being much (if any) mechanical controls on it.....
That being the case the "throttle" is really more of an RPM setting control than an actual throttle controlling fuel flow as the electronic controller should be matching the fuel flow to the load the engine is seeing (independent of the engine RPM for the most part).
......which is pretty much why I tend to just set the throttle to "full open" and let the engine/electronics do what they need to do (about the only time I lower the engine RPM is when I want/need to reduce the noise for communication purposes).
It'll be interesting to see what you find out (may give me more reason to go crawling around the engine just for the sake of learning about that specific engine design).
OP
kubotacres
Gold Member
I'm curious since you have a 3560 what is your rpms at idle?
jjp8182
Platinum Member
To be honest I'm not actually sure. About the only time I ever have the throttle lever all the way back is the few fractions of a second before I turn it off, or the few fractions of a second after I turn it on and move the throttle forward to get 1200+ RPMs (before pushing it all the way forward after driving out of the carport where I keep it). So really about the only time the tractor is in a throttle-lever fully back idle is the time it takes for my hand to move between the key and throttle lever.
Having said that, your question got me curious enough that I went out to look at the bottom end of the tachometer (didn't start the tractor because I didn't want to wait for the glow plugs to warm up and then start the engine just to shut it back down), and after looking at that I'm going make an extremely rough guess (based off memory) and say that with the throttle lever all the way back it's idling somewhere between 650-ish and 800-ish RPMs.
Sorry I can't provide a better response at the moment it's just that at idle there's generally not enough power available for me to ever want to have the tractor at idle. Usually the absolute lowest RPM I doing anything (other than turning the engine on/off) at is 1200-1500RPM and that's generally just when I'm exiting/entering the carport, turning on/off the PTO, or moving a few dozen feet to swap implements.
So between the lack of power, and the fact that my running average fuel consumption is ~0.9 gallons/hour and that's with the engine is running at 2600RPM (+/- whatever variation the electronic controller and loading of the engine impart) more than 98% of the time, I've acquired the mindset of: just set it to 2600RPM and let the engine run as it will (as long as it stays within temp limits). ....which is also partially driven/reinforced by the engine testing I've seen done at/through work (it's actually pretty eye opening to see just how fast an engine can be destroyed by slamming the throttle around and not letting the engine reach a steady RPM/thermal equilibrium - assuming it's even able to keep up with the changing throttle commands).
Having said that, your question got me curious enough that I went out to look at the bottom end of the tachometer (didn't start the tractor because I didn't want to wait for the glow plugs to warm up and then start the engine just to shut it back down), and after looking at that I'm going make an extremely rough guess (based off memory) and say that with the throttle lever all the way back it's idling somewhere between 650-ish and 800-ish RPMs.
Sorry I can't provide a better response at the moment it's just that at idle there's generally not enough power available for me to ever want to have the tractor at idle. Usually the absolute lowest RPM I doing anything (other than turning the engine on/off) at is 1200-1500RPM and that's generally just when I'm exiting/entering the carport, turning on/off the PTO, or moving a few dozen feet to swap implements.
So between the lack of power, and the fact that my running average fuel consumption is ~0.9 gallons/hour and that's with the engine is running at 2600RPM (+/- whatever variation the electronic controller and loading of the engine impart) more than 98% of the time, I've acquired the mindset of: just set it to 2600RPM and let the engine run as it will (as long as it stays within temp limits). ....which is also partially driven/reinforced by the engine testing I've seen done at/through work (it's actually pretty eye opening to see just how fast an engine can be destroyed by slamming the throttle around and not letting the engine reach a steady RPM/thermal equilibrium - assuming it's even able to keep up with the changing throttle commands).
Fallon
Super Member
Forgot to check mine today plowing snow. It's in the 650-800 rpm range at idle.
OP
kubotacres
Gold Member
So would you say this photo represents close to what yours run during idle? I myself never run my tractor less than 2000 rpms when using. I just wanted to verify that my idle is set correctly. Kubota confirmed that should it need to be adjusted it would have to be brought to the dealer, or I could adjust the throttle with a stop of some sort. Either way both of you verified what I needed to know. I've owned this tractor for almost 3 years and it's been flawless. View attachment 640599