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Sawtooth throttle plate on H

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Farmall Ed

10-01-2001 18:58:14




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After some unsuccessful modifications to the sawtooth throttle plate on one of my H"s,I am now going to have to replace it.I can get a friction lever new for about 20 bucks or I can pick up a sawtooth at the bone yard.I havent had much expierence with the friction lever,what do youall think is best? Thanks Ed




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Denny Frisk

10-02-2001 09:38:25




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 Re: Sawtooth throttle plate on H in reply to Farmall Ed, 10-01-2001 18:58:14  
Even IHC themselves improved that design. ALL of My Dad's old M's, M-TA's, etc. had a square shaped notch throttle quadrant and the new style lever had a replaceable special bolt to match the square notches. When I worked at FARMALL as a Production Scheduler I was responsible for scheduling the months requirement of quadrants thru the mill that made the notches. Would have been in about 1977. Biggest problem with the saw-tooth or the square style notch was when the throttle finally vibrated out of the notch and slowed the tractor down. If it was under a hard load like grinding feed, the tractor could kill. I have a friction throttle on My Super H, and it'll probably always stay that way.

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RedM

10-02-2001 06:36:35




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 Re: Sawtooth throttle plate on H in reply to Farmall Ed, 10-01-2001 18:58:14  
I have put in many 16 hour days on an NEW letter series Farmall and I have never been in a parade. I still prefer friction type throttle it is all a matter of personal preference.



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Old HM

10-02-2001 06:28:51




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 Re: Sawtooth throttle plate on H in reply to Farmall Ed, 10-01-2001 18:58:14  
I just ordered a lever from SteelWheelRanch...I told him to give me whatever he had (cost was the same). He sent a saw tooth lever. While esthetically it looks great and is in excellent condition it did jump out of position. It was not the saw tooth that was the problem. The throttle lever by design used to press up against the plate of the saw tooth assembly. This acts as a cantilever against the saw tooth. So, even if you replace yours with a saw tooth in great shape you still may need to adjust the throttle lever. I wouldn't own a friction grip now that I figured the problem out. I added washers to the other throttle side to give it more leverage and it works great! (Remember when Farmall sold them in 1947 they worked...)

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Setting RPM

10-02-2001 05:40:54




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 Re: Sawtooth throttle plate on H in reply to Farmall Ed, 10-01-2001 18:58:14  
ED: Many years ago when using a tractor it was common for us to mark the various notches as to speed for various belt, PTO and ground speeds needed for the many different applications. The hammer mill(belt) worked best on one notch: The baler on another, etc etc. Fiddleing around with a friction throttle was a waste of time. Now if one is only going to pretend to use a tractor by driving in parades, then either will work. ralph

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Michael Soldan

10-01-2001 21:48:50




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 Re: Sawtooth throttle plate on H in reply to Farmall Ed, 10-01-2001 18:58:14  
Farmall Ed, I just about pulled all my remaining hair out trying to make my sawtooth plate work, and after putting in an extra washer and then a new spring I got to studying the problem...wear. The plate showed a wear mark where the throttle arm rubs on it, but it was really not the plate that was the problem..there was more wear on the throttle lever than met the eye. I ground the end of the throttle off square and ran a bead or arc weld across the surface.That build up put extra tension on the notch tooth and suddenly it was fixed and works great...no more jumping out of the notches. Both my H's and my M have saw tooth plates and they all work fine..my thoughts...good luck from Mike in Exeter Ontario

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Zonie

10-02-2001 07:31:34




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 Re: Re: Sawtooth throttle plate on H in reply to Michael Soldan, 10-01-2001 21:48:50  
As Michael has stated, I found the engagement tooth on the lever was much more worn than it looked, I cured the problem about the same as micheal did. However the plate was missing a few teeth, right where I need them. And I don't care for the saw tooth type myself. I just bought a M & W friction type from the auction on this site for $13.00 plus shipping. my tractor is apart for a rebuild so I can't tell you soon if I like the friction type. I just think that infinate adjustment is much better that the saw tooth type.
I'll keep the old saw tooth type just in case I want to bring this tractor back to total original.
I do use my tractor not just parades etc. So I favor things that will make it more useful.

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Gary

10-01-2001 19:37:51




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 Re: Sawtooth throttle plate on H in reply to Farmall Ed, 10-01-2001 18:58:14  
I personally think the friction levers look like crap.



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Phlogiston

10-01-2001 19:21:53




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 Re: Sawtooth throttle plate on H in reply to Farmall Ed, 10-01-2001 18:58:14  
Barnaby knows all about these levers. He will be here in the morning to fill you in.

Phlogiston



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Bob M

10-01-2001 19:16:36




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 Re: Sawtooth throttle plate on H in reply to Farmall Ed, 10-01-2001 18:58:14  
I agree with RedM. I've had countless hours working both types and MUCH prefer the friction levers over the original IHC rachets. The best were made by M&W, but even the cheap imported friction levers sold today work fine.



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RedM

10-01-2001 19:03:31




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 Re: Sawtooth throttle plate on H in reply to Farmall Ed, 10-01-2001 18:58:14  
If you are not concerned with keeping tractor original I personaly think friction type is much better.



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