BX relief lifting: Kubota Review  -- Kubota Tractors Discussion Forum and Review BX relief lifting: 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 ] | 2 | | Next >>
Reply | Pop Up Window Reply | Add PhotoAdd Photo
 02-14-2007, 16:21 Post: 139752
botamac

TP Contributor

Join Date: Nov 2004
Location: MI
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 71

7
Filter by User
 BX relief lifting

Today I was plowing my driveway with my BX 23 and I noticed after I was done That when I shifted to high gear to head back the the barn that the trans made a shuttering sound, like the relief valve was lifting. The Trans fluid level is okay up to level. The parking brake was not on. The sound only heard when I take off from a stop it’s not a metal sound, it sounds like the relief is lifting. Anyone have any thoughts on this before I send off to the dealer to have them check it out. So Sad






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




Bookmarks: Digg It | Del.icio.us |
 02-14-2007, 16:30 Post: 139753
Murf

TP Contributor

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: 7041

2
Filter by User
 BX relief lifting

First off, I'm not sure what you mean by the relief valve "lifting", do you mean opening?

The weather in Michigan hasn't exactly been balmy the last little while, it is possible that the hydraulic fluid was still so cold, even after working a bit, that it was thicker than it should be. This would certainly put some real pressure to the system under a big load like starting off in high range, especially if you were in a hurry to get back in front of the fireplace. Smile

Best of luck.






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




Bookmarks: Digg It | Del.icio.us |
 02-15-2007, 11:29 Post: 139768
botamac

TP Contributor

Join Date: Nov 2004
Location: MI
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 71

7
Filter by User
 BX relief lifting

Yes it is opening. And the oil is warm first the tractor is stored in a heated barn and I start it and let it run for about 15 min. when I brought the tractor back to the barn after using it for about 2 hours and shut it down the oil in the trans was warm not hot but warm. I don’t know if there is an adjustment or something got past the filter or may the relief spring is weak or out of adjustment. I’ll go home today and start it up and see if it does the same thing. Then I’ll make a decision from there.






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




Bookmarks: Digg It | Del.icio.us |
 02-15-2007, 14:47 Post: 139772
Murf

TP Contributor

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: 7041

2
Filter by User
 BX relief lifting

Ok, now a few blanks are filled in.

First of all, the relief valve will open under a sudden full-load start or in high range, even when the fluid is warm.

The type of drive system in hydrostat's like this need to build up to speed, you can't just push and go, you have to be a little patient and let it slowly gain speed. This type of drive system uses a variable displacement pump. In other words, the farther down you push the pedal, the higher the displacement (the more fluid) the pump moves. The problem is however, that the drive motor is directly coupled to the wheels and can only consume fluid at a certain rate, namely the displacement per revolution of the motor, times the number of revolutions per minute the motor is turning.

In the end, if you try to pump twice as much fluid as the motor can accept, the relief valve will open to dump the excess volume straight back into the reservoir.

I suspect this is what is happening.

If there was a problem with the relief valve itself, it wouldn't change depending on what range you were in, it would be the same all the time.

Best of luck.






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




Bookmarks: Digg It | Del.icio.us |
 02-15-2007, 23:02 Post: 139790
earthwrks

TP Contributor

View my Photos

View my Photos  Pics
Join Date: Dec 2003
Location: Home Office in Flat Rock, Michigan
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 3853
 BX relief lifting

My blue does this too. If it's nice and warm out you likely wouldn't be hearing as much of the hydro being taxed. Instead, you'd take notice of the engine lugging. Both are indications of the wrong range (too high) or not high enough RPM to compensate. Most likely the go-pedal is hard to push down too---this goes back to Murf's eloquent disertation of displacement versus RPM.
Now, if you use the lowest range and press down on the go-pedal, there will be little or no resistance.






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




Bookmarks: Digg It | Del.icio.us |
 02-16-2007, 09:11 Post: 139793
botamac

TP Contributor

Join Date: Nov 2004
Location: MI
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 71

7
Filter by User
 BX relief lifting

Yesterday I hooked up the rear 5’ blade to remove the hard pack off the drive way and in the past the tractor had no problem doing this.I had it in 4 wheel low range and in the past it had no problem. Yesterday I did this and would get about 10’ and the relief would open so I would raise the rear blade up and the relief would reset then I would put the blade down and in about 10’ it would do the same thing. Now either the filter and screen is plugged or the spring is weak on the relief or needs to be adjusted some how. I still think that this size tractors hydraulic systems are under cooled and if the fan is not cooling the fluid when it is hot outside in the summer time, then in time it’s going to put undo stress on the system and this problem my have worked up to this over a period of time.






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




Bookmarks: Digg It | Del.icio.us |
 02-16-2007, 09:34 Post: 139794
hardwood

TP Contributor

Join Date: Dec 2002
Location: iowa
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 3582
 BX relief lifting

Did your blade hook onto perhaps an edge of some cement or something in the drive that was solid enough to make the tires spin on the tractor before the bypass valve kicked in? Do you have chains on the tractor? Did you drive it back to the shed with the blade lifted without a problem? Maybe your answers to these questions will lead us to your problem a bit quicker. Best of luck. Frank.






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




Bookmarks: Digg It | Del.icio.us |
 02-16-2007, 13:53 Post: 139806
botamac

TP Contributor

Join Date: Nov 2004
Location: MI
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 71

7
Filter by User
 BX relief lifting

The answer to hardwood reply is no.






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




Bookmarks: Digg It | Del.icio.us |
 02-23-2007, 21:25 Post: 139983
botamac

TP Contributor

Join Date: Nov 2004
Location: MI
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 71

7
Filter by User
 BX relief lifting

Found out today the problem with My Bx the relief valve okay, it’s the pump motor gone bad. I was told by the dealer mechanic it’s a known problem on these tractors. Luckily under warranty.






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




Bookmarks: Digg It | Del.icio.us |
 02-24-2007, 18:28 Post: 139989
Art White



View my Photos

View my Photos  Pics
Join Date: Jan 2000
Location: Waterville New York
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 6844
 BX relief lifting

Just got back from vaca but this is interesting to see that the hydro pump was shot! I think they might be searching as we haven't had any problems with them.






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 ] | 2 | | Next >>

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

Thread 139752 Filter by Poster:
Art White 1 | botamac 7 | earthwrks 1 | hardwood 1 | mscott6799 2 | Murf 2 |

 (advanced search)

Picture of the Day
Chaos921

Other Chinese Tractors - Anyone have any info on this tractor
Anyone have any info on this tractor


Unanswered Questions

Belarus 825 - needs a new clut
Drain Cock
Need more hydraulic flow for s
HINOMOTO HB 501
Belarus 420A - Problems bleed

Active Subjects

460 Long hyd leak
460 axle
Key will not start engine
6x4 engine rebuild vsHarbor Fr
Things we say and what do they
The Plus and Minus of Ignoring
Looking to buy a New Pickup Tr
Need more hydraulic flow for s


Hot Topics

Tractor Category 1 2 3 Hitch s
Duerr hp 678 Chipper replaceme
Gator 620i gas in engine oil
KUBOTA Tractor Trouble Free Qu
Gator 6x4 Overheating problem
Duerr hp 678 Chipper Manual
Adjusting 7308 Pressure Relief
Long 460 hydraulic problem


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 BX2230 VS kIOTI CK20HST
+ KUBOTA Tractor Trouble Free Quality
+ kubota bx25 vs john deere 2720

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

+ 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
+ Kubota BX2750 Snowblower Fan Shear Pin Alignment
+ Size Kubota for Homeowner Use
+ I need some OEM Quality decals for a B7500 DT-TLB
















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