What Does This Do? – Ferguson TO30 Question

I just purchased a 52’ TO30 last Friday. I know what all the other levers do, but not this one. I have looked at several pictures, and read a bunch of forums, but can’t find anything. I’m hesitant to raise/lower it without knowing first. If anyone can help me out on this, it would be greatly appreciated. See pic below.

I've only seen one of these once. I was told it was a 'Hupp' overdrive. Not for lower speeds like Sherman's do, but a 'step up'.... at least that's what it looks like from here, and the way it was described to me at the time.... a cool option... if it still works... nice tractor, good luck with it.

Well, it looks like a TO-30, and I am sure you have documented that already. SO, the only thing I can think of is that you have one with a hi-lo gearbox, (I am not sure just what they are called.) I have a TO-30 and it does not have that.

I have a TEA 20 and it also has the Hupp Dual Drive that you show in the picture. Yours appears to be in the lower position which is the direct position That is what I keep mine in for all operations for the tractor. If you push in the clutch you can then pull the lever up all the way and it will be in the over drive position If you push in the clutch and pull lever up about half way and then pull out it will be in the under drive position.

Yes you have a Hupp auxiliary. Dad installed 1 on our TO30 when it was new so we could get 540 PTO at rated engine speed to run our combine, otherwise the PTO would be too fast. Down is direct up 1 detent is neutral pull out and up for underdrive and in and up for overdrive. 4th OD is good for 22+MPH I still have Dad's first TO30 the gear box is original estimated to have 10,000+hrs the clock quit at 6800 hrs in 1966.You have 12 forward and 3 reverse gears and 3 speeds on the PTO and hydraulic pump. If your steering arm has not been heated and bent out you may have to turn right to get into lo range

Yup, looks like a Hupp Dual drive. The hupp overdrive had a flat handle with no ball at the end.

Kirk

Wow, I never posted on a forum before, you guys on here are great. Thank you so much for all the great info. I thought it was a diff lock or something of that nature. I’m even more excited to own this now.

Well then! Welcome to the most intelligent, well mannored and best looking forum on the www.... and we're modest too....
Next step is to get an owner's manual and repair manual for your new pet. Trouble is... that lever for the Hupp was an aftermarket accessory, so you'll have to hunt for a paper copy of that manual. Good luck with it!!

Tony, I second that! LOL. Seriously, though, when I was a kid I read everything I could find about tractors, (which was mostly in the farm magazines), but since finding the YT forums, I have learned a lot more than I ever did then. Like this gearbox, for instance, I had heard, (but never seen one,) about the Sherman transmissions, but had never heard of the Hupp version. So I'm still learning too.

(quoted from post at 04:06:39 10/21/14) Yes you have a Hupp auxiliary. Dad installed 1 on our TO30 when it was new so we could get 540 PTO at rated engine speed to run our combine, otherwise the PTO would be too fast. Down is direct up 1 detent is neutral pull out and up for underdrive and in and up for overdrive. 4th OD is good for 22+MPH I still have Dad's first TO30 the gear box is original estimated to have 10,000+hrs the clock quit at 6800 hrs in 1966.You have 12 forward and 3 reverse gears and 3 speeds on the PTO and hydraulic pump. If your steering arm has not been heated and bent out you may have to turn right to get into lo range

Click to expand...

I've been wondering why my steering arm is bent but someone must have kept the Hupp.

Don

Yep It's a Hupp transmission. If you tilt the handle outward and up (down?) it should give you the underdrive. Hupp had an early design and a later design. It also came with either a high range combo option with a top speed of around 25 MPH or the low range combo with a top speed around 15 MPH. The early version was prone to breaking two internal gears and sticking between ranges. If you have the early version and it gets stuck, jack up the rear and spin the rear wheels by hand to unstick it. The later versions had upgraded internal shifter forks and reworked output shaft and gears that are very similiar to the Sherman combo.
The wife's Fergy currently has the Hupp and Howard. The Howard is what is needed to run a tiller with or you can also use an Everett transmission also.
Your Hupp is a poor mans Sherman. If you have the later version it is just as strong. If you have the early version you might find one day that at least one of the two stationary gears inside is broken, if you ever split it and remove the nose cone. That cute little gear localy runs $450/650 custom made.
Enjoy it. Don't pull stumps in underdrive. That Hupp makes reverse gear manageable. Very maneagble.