Oil Pressure Indicator Lamp : Kubota Review  -- Kubota Tractors Discussion Forum and Review Oil Pressure Indicator Lamp : 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
 11-20-2007, 22:06 Post: 148531
WhitleyStu



Join Date: Mar 2006
Location: Northeast Indiana
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 27

3
Filter by User
 Oil Pressure Indicator Lamp

When changing the oil on my BX2230 I noticed the wire to the oil pressure sending unit was broken off the electrical connector that snaps on the tab of the sending unit. I crimped on a new connector and pushed it on the sending unit. I started the engine after the oil change and just for the heck of it I unplugged the connector to the sending unit. No indicator light lit up on the dash. If I am thinking right I should have had an oil pressure light come on. So, do I take the steering wheel and dash off and check the bulbs? Thanks for any advice...
Stu






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




Bookmarks: Digg It | Del.icio.us |
 11-20-2007, 22:51 Post: 148533
candoarms



View my Photos

View my Photos  Pics
Join Date: Mar 2007
Location: North Dakota
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1929

3
Filter by User
 Oil Pressure Indicator Lamp

Stu,

I believe you're correct. When the wire is disconnected from the sending unit WHILE THE TRACTOR IS RUNNING, you should have an oil warning light appear on the dash.

However, this light should also appear when you first turn the key to warm the glow plugs, prior to starting the engine. If the oil pressure warning light appears when you turn the key, the bulb IS NOT burned out.

I'm guessing that you have no oil pressure warning light when you attempt to start the engine. If this is the case, the bulb is likely the culprit.

Joel






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




Bookmarks: Digg It | Del.icio.us |
 11-20-2007, 23:19 Post: 148536
WhitleyStu



Join Date: Mar 2006
Location: Northeast Indiana
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 27

3
Filter by User
 Oil Pressure Indicator Lamp

I checked the manual to make sure which warning light on the dash panel is the oil pressure. I turned the key to the preheat position (engine off) and I do have a good oil pressure light bulb, but when I unhook the wire the light goes out. When the engine is running and I pull the wire off of the sending unit I get no warning light on the dash. Any ideas??? This is one indicator light I want to know is working properly...






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




Bookmarks: Digg It | Del.icio.us |
 11-21-2007, 00:17 Post: 148539
candoarms



View my Photos

View my Photos  Pics
Join Date: Mar 2007
Location: North Dakota
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1929

3
Filter by User
 Oil Pressure Indicator Lamp

Stu,

I believe I know what's going on here, but I could be wrong.

Provided that you have only one wire going to the pressure switch, it's possible that the switch will only allow a completed circuit when the oil pressure is low.

In other words, I believe you have a hot wire going to the lamp. On the other side of the lamp, you have a ground wire that goes through the oil pressure sending unit. When the oil pressure drops, the switch makes contact, and the path to ground is subsequently completed, which allows the lamp to light.

You can test this theory easily enough by placing an ohm meter on the sending unit. With the tractor off, your sending unit switch should be closed. (low oil pressure condition) By touching one lead of your ohm meter to the sending unit's terminal, and the other to the tractor frame, you should read close to zero ohms, indicating a closed circuit......which would allow the lamp to light.

When you start the engine, the ohm meter should show an open circuit, or very high resistance. (high oil pressure condition)

Be sure to zero your meter before attempting this test. Touch the two leads of your meter together to see if the meter reads zero. If you have a digital meter, you won't have to adjust for zero, but this test will let you know whether or not your meter is working properly prior to using it.

If you read very high ohms (high resistance) while the tractor is running, this means that the switch is open, preventing the lamp from lighting......as should be the case.

The problem with this design -- if this is indeed the case --- is that in the event the wire came loose, or was removed by a twig, etc. -- you wouldn't know if you lost oil pressure until the next time you go to start the engine. The warning lamp won't light when you place the switch in the preheat position.

Joel






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




Bookmarks: Digg It | Del.icio.us |
 11-21-2007, 00:39 Post: 148543
bloggins



View my Photos

View my Photos  Pics
Join Date: Apr 2006
Location: Kingston, Ontario
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 99
 Oil Pressure Indicator Lamp

Condoarms is correct. The pressure unit creates the ground to light the lamp. Engine running = no light, pull wire still no light = because no ground available to light the bulb unless the oil pressure drops to zero closing the contacts in the sender unit.






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




Bookmarks: Digg It | Del.icio.us |
 11-21-2007, 00:55 Post: 148544
candoarms



View my Photos

View my Photos  Pics
Join Date: Mar 2007
Location: North Dakota
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1929

3
Filter by User
 Oil Pressure Indicator Lamp

Bloggins,

I'm from the old school of thought that taught me never to place a switch in the ground side of any device.

It goes against everything I've been taught, when I see a switch in any ground wire.

I believe the hot wire going to the lamp should be switched by the sending unit, and the ground wire from the lamp should be permanently grounded to the tractor's frame.

It's very difficult to troubleshoot any electrical system when both sides of the circuit have to be checked. Dammit....ground is supposed to be ground. Ground isn't supposed to be broken ANYWHERE! Only the hot side of a circuit is to supposed to be switched.

The sending unit should have two terminals on it. The hot wire should go to the sending unit. The switch should be open when the oil pressure is high. The ground wire should come off the neutral side of the lamp socket........but that's the old-fashioned way of doing things, I guess.

Joel






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




Bookmarks: Digg It | Del.icio.us |
 11-21-2007, 01:36 Post: 148547
WhitleyStu



Join Date: Mar 2006
Location: Northeast Indiana
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 27

3
Filter by User
 Oil Pressure Indicator Lamp

I was not thinking about the ground being on the "other" side and with your example I understand what is going on. At least now I know I have a reliable oil pressure warning light. Many thanks to you gents for your help...
Stu






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




Bookmarks: Digg It | Del.icio.us |
 11-21-2007, 13:47 Post: 148574
mobilus



View my Photos

View my Photos  Pics
Join Date: Jul 2007
Location: Clay County, TX
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 171
 Oil Pressure Indicator Lamp

Here's a link to a simple diagram that might help. When the oil pressure is within established parameters, the plunger is forced in, bridging the contacts' gap.






Link:   Click Here 

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 148531 Filter by Poster:
bloggins 1 | candoarms 3 | mobilus 1 | WhitleyStu 3 |

 (advanced search)

Picture of the Day
ssiggins

Mitsubishi - MT372 Front Loader Installation
MT372 Front Loader Installation


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