Look at what I found on my tractor

I purchased my "first" tractor about 6 weeks ago. TO-20 sn 6361 (a '49) Until I received the owners and shop manuals I ordered from those guys down at TPI, (great manuals) I didn't realize (hadn't looked close)that I have a non-oem part installed.
Is this one of those so-called "position controls" I keep reading about (i.e. the "zang thang") This one appears to be hooked up similar to pictures of other position controls. It is manufactured by Earth Equipment Corp. it appears to be almost as old as the tractor. I have included (hope I figure out the process) some pictures. I have identified key areas of the photos. "A" is a wing nut on a spring I would assume an adjustment point....to adjust what? "B" is also a wing nut on a spring (on the end of the rod)..... adjusts what?? "C" is there only to show a "huge" amount of wear at the pivot point. Because of that wear, the linkage is "very sloppy". I would assume that I need to get rid of the slop If I have any hope of this functioning (adjusting) as it should. Anybody have some tips on what I need to adjust and look for when doing so?

I appreciate any help you may be able to give.

Any idea how old this add-on is?? (serial number 922 on id plate (2nd photo)

Thanks, Dave

Yes indeed you do have one of the true origional after market position controls.

Where in Oh are you I would love to see one in person....

Anyway, you are correct the pin at position "C" should be tight.

The wing nut at position "A" is to adjust the implement height tension. You want it loose enough so that you can move the control lever but tight enough that as the lift drops it moves the lever. i.e. you can over come the friction the lift arms cannot.

The position "B" spring is new to me. But by looking at it I would guess it is a sensitivity control. i.e. it allows a little movement, (due to the draft control input, perhaps) without actualy changing position.

Glad you posted... Again I would love to take a look at it if possible. I am in the Cincinnati area.

Jeff

Thanks for the reply. I had been reading (on this forum) about position controls and was considering looking into them...but started comparing my tractor to the diagrams in the manuals and said "Hey, that ain't 'spose to be there". Although it says "Depth Control", I assumed it was in fact a "Position Control". Currently, It holds a "fairly" decent position (box blade, brush hog) I'll bet it would perform better if it was adjusted properly.

Probabaly what I should do is disconnect it from my Quadrant, then perform the factory adjustments on the quadrant to make sure it performs within specs....then re-attach the position control arm and set it correctly. I can't imagine things would work properly if the quadrant is not set proper to begin with.

Chuck and JoAnn Plott of Charlanne Farms ins Southington have quite the collection. They hosted the FENA meeting two weeks ago... and WOW.

They are about 25 miles south of you on 528 and east on 422. NW side of Warren. If you get a chance maybe stop in and say hi. If they have time to show you the collection you won't be disapointed. Also you may want to join the Ferguson Enthuesast of North America. FENA it's $10.00 and there is a great news letter 5x a year.

See their site at

• FENA