Re: Re: Shifting gears...

Posted by RPM shifting on February 11, 2002 at 10:46:00 from (216.109.205.92):

In Reply to: Re: Shifting gears... posted by john d on February 10, 2002 at 19:34:40:

despite the giant size shift engagement dogs needed to make these high torque trannys shift, the biggest reason you cant shift it is the hand throttle. depending on the spacing of the ratios, your engine drops 5-800 rpm in between each gear, and that hand throttle with flyweight governor wont allow it to drop fast enough to make the dogs approach the same speed. what can you do?
1 if it has a tach, observe the difference in rpm from one gear to the next, and shift using the tach, if the clutch is in, and you slip it into neutral and lower the engine the correct rpm, it will go in. then you could say, because its exactly governed, maybe 3 clicks down to shift.
another problem herein is that the same forces that hold it in gear while under power work the other way in deaccel, so you almost have to slip it out of gear as your taking power off. Its simple, and basic. its NOT made to do this. this has been observed since day one and could have been corrected if it was desired to be. if you keep your rpm at the bottom of the operating band, and slowly let the clutch out smoothly, a reasonable condition engine/governor combination will feel the load and go to full power for you. if either part are worn, and tired it dont work right. you will notice that if its correct, and your taking off at minimum throttle, or at the bottom of the power band, you will accelerate just fine, and slippage will be a minimum. remember a cub or an 8n isnt designed to pull a loaded haywagon, although they do all day long.
in my expereince from haying, and pulling road implements, you need an H farmall or higher really to pull much of a load. JD 40 upright {grandpas last tractor} just dont cut it. need to be in 3. another thing to contend with on road work is if i can manage to get this hay wagon up to 16 mph, can my cub cadet stop it? do i have the weight in front to control it down hill? Not likely. if your slipping to take off in road gear, your too light to be safely using road gear.

Follow Ups:

Post A Followup Name: E-Mail: Subject: Re: Re: Re: Shifting gears... Comments: Optional Link URL: Link Title: Optional Image URL: Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.

TRACTOR PARTS	TRACTOR MANUALS

We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]