Re: lower ratio gears for 140

Posted by Hugh MacKay on April 23, 2003 at 03:21:07 from (216.208.58.183):

In Reply to: lower ratio gears for 140 posted by kris on April 22, 2003 at 20:37:48:

Kris: The experts say lower gears for all the offset tractors don't exist. I have a Super A, 130 and 140. I am positive the 130 is geared lower than the other 2. I have no hard evidence to prove this just working the tractors. I used to have the SA and 130 calibrated for spraying, and in 1st gear full throttle both tractors traveled the same feet per minute. I don't have a tach on either, 130 however does rev higher. The 130 has 12.4 x 24 tires whereas SA has 9.5 x 24 tires and that alone would make a substancial difference. Those 12.4 tires stand 4-5" higher than 9.5 do.

There is also what IH called a hydra creeper device for these tractors. Basically tractor would have to be equiped with a remote hydraulic valve. From there it was just a hydraulic motor hooked to PTO. With pto engaged and clutch pedal depressed this unit would transfer power through pto and to wheels in any gear. Below I will include part of speed chart from 130 manual. these are no load speeds.
GEAR----------------miles per hour
----------------hydra-------------regular
1 st------------.27----------------2.3
2 nd-----------.42----------------3.7
3 rd-----------.55----------------4.8
4 th----------1.10---------------10.0

Under load these figures drop a fair bit, There is also a max pull chart for each gear. Looking at those figures it sounds as this hydra creeper gear was not very efficient. There is more info in my manual, if interested e mail me I can get it all for you.

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