Selecting the best engine RPM   Kubota L2600F: Kubota Review  -- Kubota Tractors Discussion Forum and Review Selecting the best engine RPM Kubota L2600F: Kubota Review -- Kubota Tractors Discussion Forum

  parts   |   manuals   |   discussion   |   photos   |   podcast   |   reviews   |   specs   |   dealers   |   classifieds   |   contact   |   faq   |   myProfile   |   home          Login Now | Sign Up


FAQ:   What is a tractor?

Forum Index

Kubota Tractors
  Kubota News
  Kubota Price
  Kubota Review
John Deere Tractors
  John Deere News
  John Deere Price
  John Deere Review
New Holland Tractors
  New Holland Tractor Price
  New Holland Tractor Revie
Other Tractor Brands
  Articulated Tractors
  Belarus
  Bobcat Tractors
  Case
  Cub Cadet
  Hinomoto
  Kioti Tractor
  Long
  Massey Ferguson
  Mitsubishi
  Other Tractor Brands
  Other Tractor News
  Shibaura
  Yanmar Tractors
Lawn and Garden Tractors
  Craftsman
  Cub Cadet Garden
  John Deere Garden
  Kubota Lawn Garden
  Other Garden Tractors
  Simplicity
  Toro Wheelhorse
  Ventrac Lawn Tractors
Antique Tractors
  Allis Chalmers
  Case David Brown
  Farmall IHC
  Ford
  Ford 9N 2N 8N
  Fordson
  Harry Ferguson
  John Deere Older
  Massey-Harris Ferguson
  Minneapolis Moline
  Oliver Cletrac Cockshutt
  Restoration
  Tractor Pulling
Tractor Attachments Implements 3ph
  Back Hoe
  Field Mowers Brush Cutter
  Grooming Mowers Finish Mo
  Loaders
  Snowblowers / Snow Plows
  Tillers and Ploughs
  Tractor Implements
  Trenchers
  Wood Chippers 3PH
Tractor Maintenance
  Diesel Fuel Lubrication E
  Tractor Engine Repair Reb
  Tractor Tires
Utility ATV
  All Terrain Vehicles
  John Deere Gator
  Mule Utility Vehicles
General Tractor
  Farming Ranching Agricult
  Photo Contest
  Size Tractor Needed
  Tractor Projects
  Tractor Safety
  Welding
Chinese Tractors
  Jinma Farmpro Agracat
  NorTrac Tractors
  Other Chinese Tractors
Cars
  All Brands
  Audi VW
  BMW
  Car Tires and Maintenance
  Chrysler
  Exotic, Sports, Racing
  Ford Cars
  General Motors
  Honda
  Hyundai
  Mercedes
  News
  Nissan
  Subaru
  SUV and Trucks
  Toyota Cars
Trucks Trailers
  Chevy Pickup Trucks
  Dodge Pickup Trucks
  Ford Pickup Trucks
  Toyota Pickup Trucks
  Chevy Pickup Trucks
  Dodge Pickup Trucks
  Ford Pickup Trucks
  Toyota Pickup Trucks
Home Building
  Alternate Electric Energy
  Barns Pole Barns
  Buying Ranch Farm Acreage
  Carpentry
  Contractors
  Electric
  Excavation
  Moldings Finish Trim
  Other Home Building
  Pellet Stoves
  Plumbing
  Wood Stoves
Tools
  Electirc Power Tools
  Gas Power Tools
  Generators
  Shop Tools
  Techniques Howto
Landscape
  Flowers Shrubs Garden
  Golf Course Maintenance
  Irrigation Systems
  Landscape Design
  Landscape Lighting
  Landscape Maintenance
  Lawn, Turf, and Grass
  Vegetable Gardening
Construction
  Caterpillar
  Komatsu
  Wheel Loaders
Current Events Health Happiness
  Current Events
  Dogs and other Pets
  Electronics And Computers
  Food
  Health
  Just For Fun Off Topic
  Movies Music Games
  Personal Finance Investme
  Sports Outdoors
Tractorpoint Site
  Member Photos
  Site Members
  Website Operations Howto


New As Posted | Active Subjects



Click to Post a New Message!

Discussion Boards > Active Subjects > Messages as Posted > Kubota Review Forum

Page [ 1 ] |
Reply | Pop Up Window Reply | Add PhotoAdd Photo
 04-19-2004, 17:05 Post: 83650
B55Baron



Join Date: Apr 2004
Location: Florida
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5

4
Filter by User
 Selecting the best engine RPM Kubota L2600F

How does one determine an appropriate engine RPM for a given task?

Say I'm mowing or pulling a box blade on flat terrain. Do I use the throttle to select a particular RPM and then use the tranny to get the desired over-the-ground speed?

My tractor's engine seems to run happily at practically any RPM and under practically any load. But I'm concerned about "lugging" the engine or revving it too much.

My initial inclination is to run it at 2000 RPM all the time (ignore the PTO for now). The manual doesn't discuss this subject.

(The power v. rpm curve for the diesel engine that drives my irrigation pump actually has a pretty pronounced peak, making me think that perhaps the engine in my tractor doesn't have a power band that's as wide as I think it does. Again, the manual isn't any help as it provides no power or fuel-consumption curves.)

Side question: The foot throttle seems to makes most sense for driving the tractor from point to point, like a car, rather than for doing work with an attachment. Correct?

If these questions are better posted elsewhere, feel free to send me there.

Thanks.

--Mike






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 04-19-2004, 21:40 Post: 83681
beagle

TP Contributor

View my Photos

View my Photos  Pics
Join Date: Jan 2004
Location: Michigan
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1333
 Selecting the best engine RPM Kubota L2600F

Mike, go to the Kubotaengine website. They have all the performance curves on the site. Check your manual for the engine model and you can find the curve. I have always lived by the torque curve. I try to run at peak torque for most tasks except when mowing or operating pto equipment that requires higher rpm's to run properly. Operating in the peak torque range is best for the engine, especially when grading and other heavy haul work.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 04-20-2004, 08:30 Post: 83706
B55Baron



Join Date: Apr 2004
Location: Florida
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5

4
Filter by User
 Selecting the best engine RPM Kubota L2600F

Great; thanks. I didn't know about that site. --Mike






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 04-20-2004, 08:34 Post: 83707
muletrain



Join Date: Apr 2004
Location: Deer Creek, north of Oklahoma City
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 25
 Selecting the best engine RPM Kubota L2600F

Beagle, thanks for this site reference. As a new owner of the L5030 I could not find any reference in the owner's manual for operating RPM either. The Kubotaengine.com site's engine models do not match with the Kubota L5030HSTC webb site description of the model. I will have to dig out the manual at home.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 04-20-2004, 09:23 Post: 83708
Murf



View my Photos

View my Photos  Pics
Join Date: Dec 1999
Location: Toronto Area, Ontario, Canada
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 7044
 Selecting the best engine RPM Kubota L2600F

Generally speaking, for normal work we run the GST's at about 1800 rpm and the HST's at about 2000 rpm.

We adjust rev's for work load using those numbers as a starting point. Some tasks require slower speeds for example, so the deeper gearing allows for lower rpm's but when speed is required, towing a loaded dump trailer for example, then a few more rev's are needed.

Best of luck.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 04-21-2004, 07:00 Post: 83788
TomG

TP Contributor

Join Date: Feb 2002
Location: Upper Ottawa Valley
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5406
 Selecting the best engine RPM Kubota L2600F

Two thousand sounds pretty good for most engines. For scraper work, I select a gear that will carry the max loads I expect without lugging the engine. I then set the hand throttle for a slow as I want to go and use the foot throttle to increase ground speed. I increase the rpm if the engine lugs and then maybe have to find another gear for the speed I want. Sometimes I need to slow down in a hurry and it's good it happens just by taking my foot off the throttle.

I think most newer small diesels have broad power curves. Old ones were almost constant rpm engines. The max torque points can be at rpm's higher than pto rpm and HP also may increase above the pto point. Nothing wrong with running them at lower rpm's far as I know as long as they aren't lugging and the load is enough to get the temp up into the normal range.

Diesels do like to work though. If they're chugged around to yard too much at low rpm they gum up and start puffing gray smoke. The oil life also is shortened. If that happens, a stint of hard labour usually straightens them out.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 04-21-2004, 16:21 Post: 83835
B55Baron



Join Date: Apr 2004
Location: Florida
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5

4
Filter by User
 Selecting the best engine RPM Kubota L2600F

I checked the Owner's Manual -- it doesn't say what particular engine powers my L2600F. But I found the newer L2800 has the D1430 engine.

I then checked kubotaengine.com and found that the D1430 is rated at 29.0 hp at 2800 rpm, while the "generator standby power" (whatever that is) is 18.1 hp at 1800 rpm.

So . . . I'm ready to conclude that the engine of my L2600 is probably happiest (power v. longevity) somewhere in between, at say 2300 rpm.

I'm going to use 2300 rpm as the base rpm when the tractor is working, i.e., pulling an attachment.

Comments welcome.

--Mike

P.S. You'd think Kubota would make such information more readily available to the owners of its products.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 04-21-2004, 16:29 Post: 83839
B55Baron



Join Date: Apr 2004
Location: Florida
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5

4
Filter by User
 Selecting the best engine RPM Kubota L2600F

I didn't dig deeply enough at kubotaengine.com...

A link took me to a graph of hp and torque vs. rpm.

Hp increases essentially linearly between 1400 and 2800 rpm.

But torque is quite flat between those two rpm. It's highest at about 1800 rpm, but by only a wee bit.

2300 rpm still seems about right for heavy work, but lower rpms should be fine much of the time. --Mike






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
Reply | Pop Up Window Reply | Add PhotoAdd Photo


Page [ 1 ] |

Discussion Boards > Active Subjects > Messages as Posted > Kubota Review Forum

Thread 83650 Filter by Poster:
B55Baron 4 | beagle 1 | muletrain 1 | Murf 1 | TomG 1 |

 (advanced search)

Picture of the Day
videorov

Belarus - Belarus 250AS Tractor axle replacement
Belarus 250AS Tractor axle replacement


Unanswered Questions

Shibaura SD2203 rear axle oil
Mitsubishi MX55
Gator HPX ignition module
SL 1643
Removing LHS rear wheel beari
Gear Grinding 1200A - primary
Replacing a friction diskwashe
Bolens k1502 mitsubishi K3 ove


Active Subjects

Big country 4x2 utility vehicl
Operation
lift cylinder for 3pt hitch wo
Still have jerk in hydro
Flatulent gifts human and dog
front mount snowblower
Hydraulics Won t Work
4210 ehydro codes


Hot Topics

NorTrac Tractor Quality Review
Case 446 hydraulic pump
Long 460 hydraulic problem
Jinma Tractor w transmission p
Flatulent gifts human and dog
Generator set up ideas wanted
6X4 Gator Sometimes Shudders
Roof VP75 Brush Mower Manual


Featured Suppliers

Mountain Creek Labradoodles
      MountainCreekLabradoodles.com





New Forums on Gun Sport Shooting and Hunting -- BarrelPoint.com  New Forums on Horses ManePoint.com
Talk Horses at ManePoint
Hunting + Gun Sports at BarrelPoint



Most Viewed

+ Kubota AT70s Rear Tine Tiller
+ Kubota HST GST Shuttle or Gear Transmission
+ Best Boom Mower for Kubota B2710 Tractor
+ Definition of Tractor Loader Breakout force
+ Kubota B3200 vs JD 2720
+ New Kubota L3240 First Look Review
+ Kubota Transmission Fluid SUDT
+ KUBOTA Tractor Trouble Free Quality
+ Kubota BX2230 VS kIOTI CK20HST
+ Replacement for Kubota Super UDT Hydraulic Fluid

Most Discussion

+ How to match Truck to Trailer
+ New Kubota L3240 First Look Re
+ Kubota Number 1 in Compact Tra
+ KUBOTA Tractor Trouble Free Qu
+ Source for after market produc
+ 3-Point Quick Hitch
+ B 7100 ST - Making the Leap
+ Kubota Transmission Fluid SUDT
+ Kubota vs John Deere Compact T
+ L3130HST vs JD4310Hydro HELP

Newest Topics

+ LOOKING FOR PERSONAL USE TRACTOR
+ 3 PT POSITIONDRAFT ICON NOTIFICATION
+ BX23S
+ Kubota B2301 vs Deere 2025R vs Mahindra Max24
+ 5040 shear on my PTO shaft
+ Kubota B7100 HST Flipped Will Not Move
+ Kubota b7100-hst
+ B2601 vs bx1800
+ 2000 B2710 I need a loader dealer wants over 4K an
+ Upgrading the Factory 145amp Alternator to 40 Amp
















Turbochargers for Tractors and Industrial Machines
Cab Glass for Tractors and Industrial Machines

Alternators for Tractors and Industrial Machines
Radiators for Tractors and Industrial Machines

Driveline Components for Tractors and Industrial Machines
Starter Motors for Tractors and Industrial Machines