2320 Question

Pushing_Tin · Mar 7, 2008

Hi all, a question for the JD experts out there. The 2320 is my first tractor and I have been running it at full 3000 rpm all the time with just the FEL. Is this bad for the tractor? I had assumed that since that was where the PTO was rated it was just fine, but somebody told me today that I should not be running wide open all the time.

Am I doing a bad thing, or is he a moron?

kennyd · Mar 7, 2008

There is no problem at all running your machine at it's full rated RPM, that is what it's designed for.

kvjohndeere · Mar 7, 2008

Pushing_Tin said:
Hi all, a question for the JD experts out there. The 2320 is my first tractor and I have been running it at full 3000 rpm all the time with just the FEL. Is this bad for the tractor? I had assumed that since that was where the PTO was rated it was just fine, but somebody told me today that I should not be running wide open all the time.

Am I doing a bad thing, or is he a moron?

Push That Diesel too its Limits Go for it is it still under warranty ????? If it is dont worry about it ! Im thinking Of puttin a K&N Air filter on Mine ! for more power & fuel Economy ! A turbo charger would be nice LOL !

2Malamutes · Mar 7, 2008

Pushing_Tin said:
I have been running it at full 3000 rpm all the time with just the FEL. Is this bad for the tractor? I had assumed that since that was where the PTO was rated it was just fine,

Is it bad for the tractor? No. But it probably isn't necessary as the FEL doesn't run off the PTO. You'll go through fuel faster running wide open all of the time.

EdC · Mar 7, 2008

Pushing_Tin

Far from an expert but I have had good success using the FEL with the tractor between 2500 and 2800 rpm depending on what I am doing. Digging is 2800, just moving material 2500-2600. The engine will turn 3000 but just like any other engine the closer you run it to the limits the shorter it will last. Now that might be 5000 hrs instead of 6000 who knows.

If you have not picked up a tooth bar yet I sure recommend them. Makes digging much easier.

flyngti · Mar 7, 2008

When I got my 2320, the dealer told me that I should operate at around 1800 RPM for general work. I don't use either PTO and have not needed to use "full throttle." I don't think I have ever been above 2500 RPM for anything and the tractor seems to work just fine. I start at around 1800RPM -- if work seems slow or bogged down, I'll bump it up as needed. I don't think there is a need to run at 3000 RPM all the time. It'll just burn fuel at $3.75/gal that much faster.

Pushing_Tin · Mar 7, 2008

Thanks guys, since I've always run it at 3000rpm anything else seems slow and bogged down. Maybe I'll just get used to it. Any other thought out there please chime in!

steveschlutt · Mar 7, 2008

Higher RPM's do help improve loader response time. I have a 2210, and I run it at or near full RPM when doing a lot of loader work, especially heavy snow, and of course while mowing. It does drink more fuel, but there's a lot less waiting for loader response, as the hydraulics operate much faster as a result.

JiminGa · Mar 7, 2008

run it like you rented it. actually a diesel engine is designed to be worked hard, it'll last longer by being worked than if you baby it all the time.

RalphVa · Mar 7, 2008

I generally run my 4010 at 1800-2200 rpm to get about, climb my 100 foot high hill out back, etc. I run it up around 2500 when I need more power working the FEL hard, plus it increases the FEL speed. I generally only run it at the PTO rated rpm (somewhere around 3,000) when running the PTO.

Our 1983 Benz generally is revved to its max in 1st and 2nd gears. This is about 4300 rpm. Been doing this for 25 years and 206k miles. Diesels like to be worked hard. They'll use less fuel at lower rpm though. Just don't lug them. Rpm = more oil flow to keep the bearing happy.

Ralph

PCABE5 · Mar 7, 2008

Would be nice if John Deere or Yanmar would publish the brake specific hp charts for the motors. Then you could see the fuel consumption by rpm. I believe the stated fuel consumption is 1.6gal/hr at rated rpm (3000) with a 100% load. On a diesel there is usually a "sweet spot" for fuel consumption and you would need the chart to find what rpm that is and low rpm is not neccassary the best fuel consumption.

Pushing_Tin · Mar 7, 2008

Good replies, looks like we're running about 50-50 though!

ChuckinNH · Mar 7, 2008

Well, there are different responses because different folks like to work differently. One person wants the hydraulics as fast as possible, and quick hydro responses, and another would rather enjoy the day. In the JD specs Deere states the working range for the 2320 is :
Operating range 1270-3170

My guess is that you are OK either way.

DreaminGreen · Mar 7, 2008

Dang and I have'nt been over 2,200 rpm yet with my 3520. Generally 1,800 to 2000 is good for me. But I did only get to dig out one stump then the ground froze and moving snow you don't need a lot of power.

2Malamutes · Mar 7, 2008

PCABE5 said:
... and low rpm is not neccassary the best fuel consumption.

Possible, but it is pretty certain that WOT is the worst fuel consumption.

EdC · Mar 7, 2008

Another reason that I like 2600-2800 rpm is that the tractor engine does not seem to be working hard but I can still get curl and lift at the same time. Lower rpm's and it seems to be either curl or lift but not both simultaneously. Helps me get into a flow and get more done. It's also more fun but darn it this is a serious tractor site.

Dreamin I think our 2320s turn a bit quicker than your 3520. No substitute for cubic inches.

jcmseven · Mar 8, 2008

The small indirect injected diesels such as this are designed to run at or near WOT. You may burn slightly more fuel, but will have less unspent fuel and better overall performance. I doubt one would significantly lengthen service life by running 500-1000 rpm slower. Although it sounds counterintuitive, the engine cools better and generates less engine heat at higher RPM. It also, as mentioned, more completely ignites the fuel, again creating less residual heat and fewer soot deposits. I suspect our OP would be better off, if he does not mind burning a little additional fuel, running the 2320 at WOT or pretty close to it. Our local college last year turned in a 5000+ hour 455 to our local JD dealership, which has a similar--though not exact--engine. I am pretty sure it was run at WOT (and then some) most of its life and although it looked rough it ran great and was purchased by another happy buyer. This is but one example to illustrate that these engines can take the RPM's

John M

kvjohndeere · Mar 8, 2008

JiminGa said:
run it like you rented it. actually a diesel engine is designed to be worked hard, it'll last longer by being worked than if you baby it all the time.

Amen Brother Run It Hard

Pushing_Tin · Mar 8, 2008

One thing I love about my tractor is the fuel consumption. I've only fueled it a couple of times since October! If it's fine for the engine to run WOT I'd rather have the 10% penalty in fuel economy in exchange for the increased power and responsiveness of the FEL.

PCABE5 · Mar 10, 2008

2Malamutes said:
Possible, but it is pretty certain that WOT is the worst fuel consumption.

Possibly. The engine was designed for a rated power output at 3000rpm. That being said power and economy should be at that rpm which it was operationally designed to operate at. Would be hard to believe the Japanese and JD had designed the tractor to be the least efficient at its rated rpm where only its load determines the FC and where it will see the most operational hours. Running it at 3000rpm is better and will do less harm than anyone letting a diesel idle for any lenght of time. Also, PTO isn't the only function on the tractor that is designed to operate at the rated rpm. Some think that 3000 rpm is the limit of this engine but it is JD's required limit as the same engine in other applications have over 3500+rpm ratings.