HVACDIESEL
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What RPM'S DO you cruise around at? Use the FEL? Use the rear loader?When I bought my machine the salesman said 1/2 to 3/4.
BX-24 RPM Question
- Thread starter HVACDIESEL
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- kubota x-24
BXpanded
Silver Member, Approved Advertiser
Whatever's comfortable. Generally mow wide open. General cruise around and carry stuff, 2,000 rpm. BH up to wide open depending on the job and how big the rush. Higher revs use more fuel and make more noise. The tractor really won't care and you won't hurt it.
Matt_Jr
Platinum Member
I've found if I want to work fast yet conserve fuel I run max at 2800 rpm unless mowing. Then I run it at 3100 rpm. When plowing snow or grading the driveway I'm usually going slow anyway so I run down near 2400 or less. When moveing lots of dirt in tight or steep areas I use lowest rpm I can and raise it up as necessary for better lifting.
RayCo
Veteran Member
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- Jul 24, 2005
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- Chester County, PA
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- Kubota BX24, Case 580 Super L
Oddly, I've never had mine up to 3000. When I'm just toting stuff around with the loader or traveling otherwise, I'm at about 2400. If I'm using the backhoe, I have it at about 2800, maybe 2850 at the most. I'm probably just paranoid, but going above that just sounds like it's too high. But, if I get some PTO-powered implement, I'll run it at the RPM needed for the right PTO speed, which is above 3000, I believe.
johnny_law
Member
Man you guys are good. I typically use mine at about 2100rpm. When I use the backhoe I really have to slow things down so I don't over compensate my motions. So again, I usually do most of my work at 2100rpm. Only when the limits of the machine are attained do I bump up the rpm for more foce but only momentarily. If I am cruising on my driveway I will bump it up to 3000ish.
My govenor will allow it to rev up to 3500 or so, but I don't like to run it that fast.
I suppose as I get more comfortable using my machine (especially the BH) I may up my RPM's but until then, I am comfortable with the lower speeds.
My govenor will allow it to rev up to 3500 or so, but I don't like to run it that fast.
I suppose as I get more comfortable using my machine (especially the BH) I may up my RPM's but until then, I am comfortable with the lower speeds.
kchear1
Member
I have a BX24. I just spoke with the Kubota regional service rep and he stated that Kubota prefers that while in use (esp. when using the loader or backhoe) that the engine is run at full throttle. He also added that although you may be able to operate the loader at lower rpm's, it's actually putting a drain on the engine to do so.
I agree 100%..said that for years and JD said that to me in the early 90's...
Sad part is the TQ drops off I think after like 3K rpms.
powerstroke444e
Veteran Member
All machinery should be ran WFO wide *&c*ing Open, as thats where the machine is cools its self better and is made to run. This is the reason lots newer ag equipment (combines & spray coops) will only run wide open when being used.
The quickest way to burn up a air cooled motor is to run it @ 1/2 throttle.
The quickest way to burn up a air cooled motor is to run it @ 1/2 throttle.
Matt_Jr
Platinum Member
Normally with mowers I would agree with WOT(Wide Open Throttle) 'cause they're air cooled and the fans built into them cool better at that speed. However, if you read the BX24's manual, it states to run the machines rpm only as high as necessary for digging to prolong the life of the tractor, conserve fuel, and decrease noise. I've run mine at low rpm's for a day in 100 degree weather and never ever seen the temperature gauge go higher than half way. The cooling system is more than capable of cooling this machine at any rpm. From what I've just read, I doubt the regional service rep ever read the BX's owners manual.
johnny_law
Member
My BX24 Manual says the same thing. I think I will continue to take the advise of the Kubota Engineers and use my machine at the RPM where I am most comfortable getting the job done.
RayCo
Veteran Member
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- Location
- Chester County, PA
- Tractor
- Kubota BX24, Case 580 Super L
My vote also goes with whatever is said first-hand in the manual. The service rep should stick to his role in the company, and that is management, not engine design and maintenance.
gdBX
New member
Generally run around 1900 - 2400 rpm for general moving around. If I'm using the FEL lightly, 2400 works fine. For digging with FEL at least 2800 or above to get the break outforce that's reasonable. Backhoeing I find need 2700 - 3200, at lower RPM its too slow and laggy to work with, but for delicate work I find 2700 slows it make it more controllable. I also believe I read that at 2800 rpm was a fairly ideal balance for power and responsiveness, although I find it bit noisy.
Bobcar
Member
I believe I read until 1st. service don't run over 2500 rpm s on BX 24.
powerstroke444e
Veteran Member
Yes I know the the Bx24 is not air cooled I was just making a point.
I would say that with a gear driven tractor you can use the throttle to adjust your speed but with a hydro if you idle around you will cause lower oil flow and cause higher oil temp. If you run the throttle wide open more oil moves at reccomended pressure and cools the hydro. This really shows up in skid steers and rental equipment.
I would say that with a gear driven tractor you can use the throttle to adjust your speed but with a hydro if you idle around you will cause lower oil flow and cause higher oil temp. If you run the throttle wide open more oil moves at reccomended pressure and cools the hydro. This really shows up in skid steers and rental equipment.
rdsaustintx
Veteran Member
All WOT, all the time.
Now you're talking. If it can't handle it time to see green.
RayCo,
No offense, but you don't know anything about a service rep role, and especially a Kubota service rep. Their main role is providing every aspect of technical support to their assigned dealers, as well as resolving customer complaints. Service management is a very small part of the job. I know your rep, and it sounds like you would be suprised as to his knowledge of the Kubota product.
As to the rest of you,
You are missing a very vital component to the tractor: The HST transmission. When you run around at 1/2 throttle, and encounter a load on the transmission, what is your first instinct? Press the hydro pedal down further. When this happens you can cavitate the HST system since the HST system is demanding more oil than what the HST charge pump can supply (charge pump is engine driven, thus directly related to engine RPM). That can and will do serious damage to the HST. That is why the Kubota service rep said what he said. The engine is not the issue. BTW, I have a BX24, and I run mine WFO.
If you have a HST failure, and your machine is out of warranty, your Kubota service rep can be an ally. I definatly would not go around trashing them.
