how are hours figured?: John Deere Review  -- John Deere Tractors Discussion Forum and Review how are hours figured?: 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
 11-22-2001, 16:40 Post: 33341
dgexpres



Join Date:
Location:
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1
 how are hours figured?

can someone tell me how hours are calculated. I suppose it was dumb of me to reason that if the engine ran for 60 minutes, that would be one hour, but not so.






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




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

 11-22-2001, 17:00 Post: 33342
Roger L.



Join Date: Jun 1999
Location:
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 0
 how are hours figured?

Well, don't feel all alone; that clock tricked me in exactly the same way. But on mine it turns out that if you run for one hour at the rated PTO speed - usually about 2700 RPM - then you will add one hour to the clock. If you run for an hour at only half that RPM you will only add half an hour to the clock. Keep in mind that the tractor tach/clock are not high precision instruments...even when compared to an inexpensive wristwatch.






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




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

 11-22-2001, 19:19 Post: 33345
Bird Senter

TP Contributor

Join Date: Jun 1999
Location:
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 962
 how are hours figured?

My '95 Kubota B7100 hourmeter was nothing more than an electric clock. It was keeping time any time the key was on - whether the engine was running or not. Conversely, of course, if you turned the key off you could continue running the engine while not registering anything on the tach (which of course I wouldn't do because you would be turning off the electrical system, not charging the battery, etc., but it was possible).

My '99 Kubota B2710 is as Roger described. It registers one hour in an hour if the engine is running at "PTO speed" and less than that at lower rpm. Aircraft hourmeters with which I was familiar worked the same way; one hour at "cruising" rpm.

I have learned that some tractors stil have one kind of hourmeter, and some have the other.






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




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

 11-22-2001, 20:57 Post: 33346
MarkS



Join Date:
Location:
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1
 how are hours figured?

My 95 Cub Cadet had a mechanical hour meter which was driven by engine RPM, while my New Holland TC40D appears to be an actual clock that is independant of engine RPM. I guess it just depends upon how the manufacturer decided to track running time.






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




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

 11-23-2001, 05:23 Post: 33351
TomG

TP Contributor

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

My mid-80's Ford works like Roger describes--a combination of rmp and time. The manual describes it as a 'smart clock.' Maybe I should feel challenged by my tractor. Some older clocks only went to 999 hours. I guess these clocks were intended to keep track of maintenance and were before clocks came to be thought of as used-tractor buyers’ guides. In that case, I guess the 3-place clocks shouldn't be called 'proof meters.' Maybe they were smarter than some buyers though.






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




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

 11-23-2001, 07:20 Post: 33355
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: 6839
 how are hours figured?

Just to help you boys out a little. The old tractor's tach ran the hours at PTO speed. That means if PTO speed is 1800 and you are running the tractor at 900rpm you could run the tractor for two hours before one hour would show. The bulk of the new tractors do run one hour for one hour on an electric tach.






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 33341 Filter by Poster:
Art White 1 | Bird Senter 1 | dgexpres 1 | MarkS 1 | Roger L. 1 | TomG 1 |




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