RPM for bush hogging
- Thread starter figjam
- Start date
I am not an expert but I have cut some brush. Mostly high grass not too thick. I have run between 1800 and 2000 RPM's. It seems to cut good.
Most of the newer Kubota's HP rating are around 2500 - 2700 rpm. So I don't think that is too fast. My L4740 runs right around 2600 at 540 pto rpm. I always try to run my attachments at 540 rpm. There are exceptions of course.(ie: post hole auger).
But attachments like mowers, bush hogs, tillers, I always try to tun at 540 rpm. They just seem to perform better at their rated speed.
Last edited:
P.Holm
New member
Equipment
L2250 4WD,FEL,60"belly mower,60" JD bush hog,60" JD box blade-Kubota T1400
I aways felt that running mine at 2500 rpm seemed high as well so I run my bushhog at about 2000, I'm sure 2500 is fine but I always try to cut down on fuel consumption.
My neighbor swears by running his at 1500 ,but I never got good results from that.
Paul
My neighbor swears by running his at 1500 ,but I never got good results from that.
Paul
If you are working your diesel engine it is always more productive and easier on it to operate it close to it's rated speed rather than lug it down. 2600 rpm would be fast for some diesels and slow for others, your engine is designed to be most productive and efficient at that speed.
Ed
Ed
My 2002, BX 1800 owners manual says, rear PTO 540@3068 engine rpm
and MidPTO 2500@3125 engine rpm.
Thats from the specs page in the manual
and MidPTO 2500@3125 engine rpm.
Thats from the specs page in the manual
I run enough rpm so the engine isn't lugging down. Around 1500 for the old 3750 and 1800-2200 for the L3800. Sharp blades are the trick in thick tall grass. Less fuel use also. 
76_Bronco
Member
Equipment
B7200 4WD w/FEL, 4' disc, 4' Brush Hog, 14" Plow, 4' Blade, JD 246 2 row Planter
It really depends on the size of your bush hog and how fast your traveling. My B7200 easily handles a 4 footer @2200 RPM in 3 low, and I can get 4 hours out of a gallon of fuel.
6 foot on the 3750 and 5 foot on the 3800. Both in 1 high and both sip fuel, guessin 2-3 hours a gallon.
If its meant to be run at 540 PTO then that's where I would run it. My tach has a white arrow indicating 540 PTO at 2500 engine rpm.
TripleR
Active member
Equipment
BX2200, BX2660, L5740 HSTC, M8540HDC and some other tractors and equipment
