Price Check Disappointed in L3010HST! What price for L3710HST

[hayden]

I think I've got the hydro operation down OK - been using one for 4 years now.

The thing I noticed on the 3710 I used is that the engine RPM would vary by 500+ RPM just driving the machine around on flat ground without pushing or pulling anything. Just transporting the tractor. My 2910, on the other hand, holds the RPM within 100, maybe 200 RPM across a wide range of loads, only dropping below the set point when completely overloaded. I brought this up in another thread, so I applogize for repeating, but it relates to this topic too. Granted, the 3710 is a good bit heavier than a 2910 and is geared to move faster in H range, but it still seemed like the governor was challenged to hold constant RPM.

For others with the Grand L's, what RPM variation do you find and at what point does theengine become overloaded and RPMs drop below the set point?

 

[HR_Mutt]

hayden
I run the L4610 about 1800/1900 rpm's and M range for just about everything. I'm not noticing the bogging mentioned above.This includes a lot of FEL work digging dirt, etc. As you mentioned the only time it drops is when completely overload is for example digging into a hillside when there's no more room in the bucket.
regards
Mutt

 

[JATO_RaT]

Hayden, I know of no governor on the Kubota diesels. The fuel injection pump supplies varying amounts of fuel depending on throttle position, after that the only way to over rev a diesel is going downhill while in gear, particularly in a low gear. It leads me to believe that something unusual was going on with the engine, perhaps as a result of the hydrostatic. I can see that my comment about hydro's was not necessary for you, but perhaps other's looking at this post will learn something, Rat...

 

[Anonymous Poster]

I am about to by a 3010. Is the 500 from the dealer or direct from Kubota? Anyone else know about this?

 

[Joesgoats]

hayden,

I've taken my 3710hst on the road a few times for distances of about 3-5 miles. What I found is that it's sensitive to gradient and you really have to feather the HST pedal to keep the revs constant when in high. So basically you can keep your speed constant or your revs but not both when going up hills, etc.

I didn't notice how much variation I had, because I was deliberately trying to keep the revs constant.

Joe