Is this a problem or a "feature"??: John Deere Review  -- John Deere Tractors Discussion Forum and Review Is this a problem or a "feature"??: John Deere Review -- John Deere 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
New As Posted | Active Subjects



www.emerichsales.com - New & Used Equipment
          View Tractors For Sale!


www.partsbynet.com - Lawn and Garden Equipment Parts


Bernardsville Landscape Lighting
Click to Post a New Message!

Discussion Boards > Active Subjects > Messages as Posted > John Deere Review Forum

Page [ 1 ] |
Reply | Pop Up Window Reply | Add PhotoAdd Photo
 09-20-2002, 21:58 Post: 42710
Bernie Galgoci



Join Date:
Location:
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1

2
Filter by User
 Is this a problem or a "feature"??

I find it useful to have a "spinner" (a.k.a. suicide knob) on the steering wheel of a tractor, mostly because it's so handy when manipulating in reverse through tight spaces. Last fall I put a spinner on my JD4400 , mounting it at about the 1 o'clock position on the steering wheel with the tractor pointing straight ahead. Recently, I noticed that when I'm driving straight ahead, the spinner is no longer at the 1 o'clock position where I originally installed it, but in fact it could be just about anywhere - 3 o'clock, 11 o'clock, 7 o'clock, you name it. Today I decided to investigate. There's a quiet stretch of straight country road heading east from my mailbox, so I went down there, pointed the tractor east, and started driving. The spinner started out at about 7 o'clock, and after about a mile of straight-on driving it was at about 5 o'clock. No big deal, I thought. Normal play. I turned around and headed back home, but decided to rock the steering wheel back and forth from right to left and left to right to see if that made a difference. Needless to say, it did. While traveling along in a straight line, if I turned the steering wheel say 10 degrees to the right, I had to turn the wheel back 15 degrees to the left to make the tractor go straight again. And if while traveling along in a straight line I turned the steering wheel say 10 degrees to the left, I had to turn the wheel only 5 degrees back to the right to make the tractor go straight again. By turning the steering wheel back and forth while going down the road, I could make the spinner travel counterclockwise around the wheel from it's starting position. No matter where the steering wheel was originally positioned with the tractor driving straight, if the steering wheel was moved, it had to be returned to a position a few degrees counterclockwise from the original "starting position" in order for the tractor to go straight again. (I hope I'm explaining this clearly!) Anyway, is this behavior "within normal limits" or is there a leak somewhere inside the steering valve? I have an old JD3010 that doesn't have a hint of "spinner wander." Then again, the design of the 3010's steering valve is probably totally different. I probably never would have noticed any of this if I hadn't had something (the spinner) marking the position of the steering wheel. Any thoughts on this would be appreciated.






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




Bookmarks: Digg It | Del.icio.us | Stumble This

 09-21-2002, 07:53 Post: 42722
TomG

TP Contributor

Join Date: Feb 2002
Location: Upper Ottawa Valley
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5406

2
Filter by User
 Is this a problem or a

Sounds like this could lead to an interesting discussion. I'll start by saying that I don't know JD steering systems. On heavy equipment and some farm tractors I believe that servos are used and there's not an actual physical linkage through gear faces, arms etc. I guess something like you describe might easily happen on such systems, but I imagine that compact tractors would use more traditional steering systems.

I suppose that different combinations of sector play and linkage play and some geometry would result in steering and corrections that aren't necessarily symmetrical, but I don't know what might be normal. I hope there will be comments from somebody who can do some thing more than my speculation.






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




Bookmarks: Digg It | Del.icio.us | Stumble This

 09-21-2002, 09:32 Post: 42723
Billy

TP Contributor

View my Photos

View my Photos  Pics
Join Date: Oct 1999
Location: Southeast Oklahoma
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 975
 Is this a problem or a

I can't tell you why but I've had 2 JD compacts (4600 & 4610) and both do as you've described.

I think Tom hit it when he said "On heavy equipment and some farm tractors I believe that servos are used and there's not an actual physical linkage through gear faces, arms etc. I guess something like you describe might easily happen on such systems".

There's nothing wrong with your steering, just the characteristics of the JD compacts.

Billy






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




Bookmarks: Digg It | Del.icio.us | Stumble This

 09-21-2002, 09:44 Post: 42726
DRankin



View my Photos

View my Photos  Pics
Join Date: Jan 2000
Location: Northern Nevada
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5105
 Is this a problem or a

It's either the servo thing or your tractor has a built in adjustment for daylight savings time.






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




Bookmarks: Digg It | Del.icio.us | Stumble This

 09-21-2002, 09:54 Post: 42728
Ted@Abbeywoods, LLC
2002-09-21 00:00:00
Post: 42728
 Is this a problem or a

Dear Bernie, both Tom and Billy are 100% correct: there is nothing wrong with what you describe. Your steering wheel assembly has what is commonly called a "steering hand" pump that determines direction of flow to the double acting steering cylinder attached to your steering linkage.

A brief note of humor; a friend decided to service his hand pump, made some errors like not assembling the spool properly, and when he started the engine the steering wheel just kept spinning. These pumps can act just like a hydraulic motor if they are not serviced properly. He eventually decided to let the dealer fix it, a good idea after it almost broke his wrist!

Incidentally, I find the "necker's knob" very helpful, especially doing loader work.






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




Bookmarks: Digg It | Del.icio.us | Stumble This

 09-22-2002, 04:52 Post: 42761
TomG

TP Contributor

Join Date: Feb 2002
Location: Upper Ottawa Valley
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5406

2
Filter by User
 Is this a problem or a

Thanks for the info Ted. The story that goes with it puts a new twist on 'taking the tractor for a spin.' Must have been pretty spectacular.






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




Bookmarks: Digg It | Del.icio.us | Stumble This

 09-22-2002, 12:52 Post: 42776
Bernie Galgoci



Join Date:
Location:
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1

2
Filter by User
 Is this a problem or a

Guys: Thanks for your expertise (and even your humor). You've made me a little more knowledgable and alot less worried about my tractor, and I appreciate it. Bernie






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




Bookmarks: Digg It | Del.icio.us | Stumble This

 09-23-2002, 13:41 Post: 42815
Tom L.
2002-09-23 00:00:00
Post: 42815
 Is this a problem or a

You guys are correct on the steering (servo concept). I built JD combines in the 80's and they were that way also.

Tom L.
Moline, IL.
TL39597@deere.com






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




Bookmarks: Digg It | Del.icio.us | Stumble This

Reply | Pop Up Window Reply | Add PhotoAdd Photo


Page [ 1 ] |

Discussion Boards > Active Subjects > Messages as Posted > John Deere Review Forum

Thread 42710 Filter by Poster:
Bernie Galgoci 2 | Billy 1 | DRankin 1 | Ted@Abbeywoods, LLC 1 | Tom L. 1 | TomG 2 |




Most Viewed

+ John Deere 2210 Backhoe Review
+ John Deere vs Kubota Compact Tractors
+ John Deere 790 fuel shut-off solenoid failing???
+ John Deere low viscosity HY GARD
+ John Deere JD 4100 Wiring diagram
+ JD 790 or Kubota L3000DT
+ Should I buy a John Deere 4105???
+ John Deere 4300 turns over but won't start
+ John Deere 455 garden tractor
+ Oil Change for Diesel Tractor

Most Discussion

+ John Deere 4300 scuffing......
+ Possible Solution To The 4000
+ Dealer out to lunch
+ Just got my new JD 4410 - Prob
+ Hello Green, Goodbye Orange
+ Receiver hitch for iMatch
+ 4300 wheel bolt problems
+ 4000 Ten Series 50 hour break
+ Don't buy JD compact tractors.
+ Oil Change for Diesel Tractor

Newest Topics

+ Oil overflow from tube and Smoke
+ John Deere 4100 gear 3 point not workin
+ 2000 John Deer Gator 4 X2
+ Mini Excavator SY20C - Small Body with Big Power
+ John Deer 1070 starting problem
+ John Deere 990
+ Tractors R Us
+ john deere 4100 with 410 loader hydraulic problem
+ John Deere 2032R Buying advice
+ John Deere 2010 loss of hydraulics













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