Rpm

RockinJ

New member

Equipment
Kubota L3240 Grand HST
Sep 29, 2017
8
0
0
Shawnee Oklahoma
L3240 Brush Hogging RPM keep dropping

Started brush cutter today ran great first couple hundred yards then RPM went to 1000 just in split second turn PTO off stop RPM run good start up again 100yards same thing happened repeat repeat loaded up went to dealer sucks help please FUEL ???? be using Diesel Kleen each time adding fuel from now on !
 
Last edited:

JerryMT

Active member

Equipment
Kubota M4500, NH TD95D,Ford 4610
Jun 17, 2017
528
156
43
The Palouse - North Idaho
Re: L3240 Brush Hogging RPM keep dropping

Started brush cutter today ran great first couple hundred yards then RPM went to 1000 just in split second turn PTO off stop RPM run good start up again 100yards same thing happened repeat repeat loaded up went to dealer sucks help please FUEL ????
Sounds like a fuel issue. How many hours, how often do you use it, when did you last change the fuel filter?
 

RockinJ

New member

Equipment
Kubota L3240 Grand HST
Sep 29, 2017
8
0
0
Shawnee Oklahoma
Around 255 hours first time using rear pto since last fall also had winterized all fluids filters changed at that time , I’ve used it couple hours since then just dragging blade low speed until brush hogging yesterday. Figured crap in fuel ***9981;***65039;
 

North Idaho Wolfman

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Lifetime Member

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L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
30,577
6,619
113
Sandpoint, ID
Sound like you need to drain the tank, change the filter, and treat it for algae. ;)
 

JerryMT

Active member

Equipment
Kubota M4500, NH TD95D,Ford 4610
Jun 17, 2017
528
156
43
The Palouse - North Idaho
Sound like you need to drain the tank, change the filter, and treat it for algae. ;)
If you don't use this tractor often, you need to keep the fuel tank as full as possible between uses to minimize bacterial sludge (often call "algae")). The root cause of this fuel contamination is water in the fuel and the most likely source is from water condensing on the walls in the partially full fuel tank (assuming you don't leave the cap off the tank or bought contaminated fuel, etc). Certain bacteria live in the fuel/water interface eating the fuel and causing the sludge to form. This is especially true in high humidity environments.
So keep your tank topped off as much as possible to preclude this.