B7100 Loader Pump Specificatios: Kubota Review  -- Kubota Tractors Discussion Forum and Review B7100 Loader Pump Specificatios: 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
 01-01-2010, 18:53 Post: 167841
rjnel_1



Join Date: Dec 2009
Location: MA
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 6

4
Filter by User
 B7100 Loader Pump Specificatios

Does anyone know how many gpm and psi rating for an early B7100 external front mounted loader pump ?






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




Bookmarks: Digg It | Del.icio.us |
 01-02-2010, 08:59 Post: 167848
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: 7045

4
Filter by User
 B7100 Loader Pump Specificatios

Before weget to the 'specs' you need to know that almost without exception every set of data you will see is nearly useless since it's lab results from a test bench and it 'real world' figures.

As an example, the hydraulics specs you are looking for will be the results of a pump (undoubtedly tested as a perfect example) with exactly your tractors theoretical maximum horsepower applied to it and measured without any extra plumbing in the circuit. This can never be reproduced in a tractor running in the real world.

Now having said that, 'Bota don't give the breakdown, but your tractor shows as having a dual pump and a total COMBINED output of 8 GPM. I'd say the loader side of it might make 3 or 4 GPM on a good day.

It sounds like you were hoping to use the output for some other use. If so there's other options. Give us some more info, maybe we can help.

Best of luck.






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




Bookmarks: Digg It | Del.icio.us |
 01-02-2010, 10:25 Post: 167851
rjnel_1



Join Date: Dec 2009
Location: MA
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 6

4
Filter by User
 B7100 Loader Pump Specificatios

No I'm using the on board (motor mounted) pump now and it's slow reacting also my 3 point lift stopped working when I tapped into the hydraulics. I have a Johnson loader on it that was from a Yanmer roughly the same size as the Kubota version would have been back then 1977 so I never had the front mount pump setup and would like to add one.






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




Bookmarks: Digg It | Del.icio.us |
 01-03-2010, 08:39 Post: 167870
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: 7045

4
Filter by User
 B7100 Loader Pump Specificatios

I think the problem you have is pretty simple. The loader you have is plumbed wrong. The Yanmar likely had "closed center" hydraulics, Kubota uses "open center" hydraulics. The two, as the names sugggest, are not compatible.

If this is the case just swapping the loader control valve will fix both the speed and 3pth issues. Not expensive nor complicated to do.

Best of luck.






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




Bookmarks: Digg It | Del.icio.us |
 01-03-2010, 09:36 Post: 167871
rjnel_1



Join Date: Dec 2009
Location: MA
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 6

4
Filter by User
 B7100 Loader Pump Specificatios

I'm familiar with the open vs closed center concept but I thought the flow/pressure restriction of the closed center would not work at all or break the pump ? Closed center stops the flow completely with the control levers in the neutral position correct ? Open center has a constant flow at all times correct ? Were all/most Yanmars closed center ? I did notice that the loader will drop faster in the float position than in the down position which is not normal the pressure should force it down faster correct ?

Thanks your help has been great.
Randy






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




Bookmarks: Digg It | Del.icio.us |
 01-03-2010, 09:57 Post: 167872
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: 7045

4
Filter by User
 B7100 Loader Pump Specificatios

Randy, you are correct, in the closed system the pressure side is dead-headed unless you move the valve. However there is a pressure relief valve that will allow flow once the set point is reached.

Your point about the loader not going down well is very telling though. It is possible that the problem is not the open/closed issue. It could justbe misplumbed. The down circuit problem tells me you have pressure on both sides of the cylinder.

You needto retrace all the plumbing between the tractor and the loadr, both pressure and return. Also the 'power beyond' if so equipped.

I still think it's just an incompatible valve though.

Best of luck.






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




Bookmarks: Digg It | Del.icio.us |
 01-03-2010, 10:53 Post: 167875
rjnel_1



Join Date: Dec 2009
Location: MA
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 6

4
Filter by User
 B7100 Loader Pump Specificatios

I think you may be right but there is one other thing I'd like to run by you. I pulled the return from the top of the transaxle coming from the out side of the valve with the tractor running and the valve levers in neutral position and I'm getting very little flow but here is the puzzling part when I move the levers I would think the return flow would increase or you would get a burst but it doesn't ? I have an inline spin on automotive type filter that came from a garden way loader so I know it was designed for hydraulics. Could a return restriction cause the same problem ? And if so I would think it would try to blow the seal on the filter.






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




Bookmarks: Digg It | Del.icio.us |
 01-03-2010, 20:21 Post: 167884
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: 7045

4
Filter by User
 B7100 Loader Pump Specificatios

No, that pretty much cinches it. If you do not have proper flow on the return line then definitely you have a wrong valve or a plumbing issue.

The reduced flow on the return line is IMHO a symptom of pressure on both sides of the cylinder at the same time. If that is the case, then the small flow you are getting is either the difference between the rod and non-rod side of the piston, or the leakage past the seals of the valve, cylinder, or both.

Best of luck








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 167841 Filter by Poster:
Murf 4 | rjnel_1 4 |

 (advanced search)

Picture of the Day
ford15000

Cub Cadet - Cub Cadet 5254 4Wd Driveline Clunking Noise
Cub Cadet 5254 4Wd Driveline Clunking Noise


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

Where Murf
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


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