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Converting hand control to foot control.


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#1 jdcrawler OFFLINE  

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Posted April 16, 2015 - 05:15 PM

I have one of those garden tractors that have a hand lever to operate the hydrostatic transmission.
What I don't like about this is that I have to take one hand off the steering wheel to reduce the tractor speed if I run into a problem or when trimming around something.

SAM_0584_zpsbgslvywc.jpg


While looking around on the internet I ran across an article from someone that converted their tractor to a foot control and decided to do the same thing to my tractor.

The guy on the internet made his own foot control lever and the lever for the transmission linkage.
I'm cheating a little and using parts that came off a motorcycle.

SAM_0547_zpsu5z3ukwr.jpg


The foot lever was drilled out and fit onto a 1/2 inch steel rod.
I drilled thru the lever and the rod and pressed in a 3/16 inch diameter split pin.
The 1/2 inch rod will ride on two brass bushings.

SAM_0563_zps2vcaxgxr.jpg


A hole was drilled into each side of the dash cowling for the brass bushings to fit into.

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The steel rod goes thru both bushings

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The motorcycle pedal is already bent out so it clears the mower lift linkage.

SAM_0566_zpsxab4ogxy.jpg


The steel rod is cut to size and I drilled the end for a cotter pin.

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With the foot pedal in position, I lined up the smaller lever with the tractor linkage.

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The face of this small lever is vertical and the tractor shift lever is horizontal.
I twisted a piece of flat steel and drilled two holes in it to form the linkage to fit between these two levers.

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One end is attached to the small lever.

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The other end is attached to the tractor linkage and the small lever is tightened down on the steel rod.

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A washer is put over the end of the 1/2 inch steel rod and a cotter pin is put on to complete the pedal instillation.

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This 1/4 inch diameter rod came off that Viking tractor that I worked on last fall.
I'm going to use it for a spring return rod on the foot pedal.
This will hook into the hole on the top of the pedal and extend down thru a hole in the fender.

SAM_0573_zpstcstfb0z.jpg



I turned a piece of brass down to 3/8 diameter.

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The brass is turned around and a hole is drilled thru it to form a bushing.

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The hole in the brass bushing is large enough so the 1/4 inch rod will slide thru it easily.

SAM_0576_zpsbgvwjexg.jpg


I then drilled a 3/8 diameter hole in the fender and put the brass bushing in it.
The 1/4 inch rod is put thru this bushing and attached to the top of the pedal.
A spring is attached to the rod on the back side of the fender.

SAM_0580_zpsbmmatdou.jpg


Another spring is mounted on the rod on the front side of the fender.
These two springs bring the pedal back to the neutral position when the pedal is released.

SAM_0581_zpspt2emj7q.jpg

SAM_0582_zps9rh36axm.jpg


I took the tractor out and drove it around the yard for awhile and the pedal works really well.

 


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#2 Cat385B ONLINE  

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Posted April 16, 2015 - 05:20 PM

Ray, can you feel where the retard detent position is on the foot control? Or does this tractor have a travel control valve built in?
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#3 MH81 ONLINE  

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Posted April 16, 2015 - 05:22 PM

What a nice, clean, retrofit. I would call it simple, except the word tends to have demeaning connotations and I would only mean it in the positive.
You nailed it Ray, again.

One question, is it hard to lift the pedal up to go backwards?
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#4 propane1 ONLINE  

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Posted April 16, 2015 - 05:27 PM

So, down for ahead and foot under the pedal to lift up for reverse? Just woundering, I'm not the sharpest tool in the shed. Noel
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#5 Natureboy OFFLINE  

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Posted April 16, 2015 - 05:38 PM

Very clever and a nice write up. I would like to do something like that with my Ariens.
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#6 wvbuzzmaster OFFLINE  

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Posted April 16, 2015 - 05:44 PM

Great retrofit. One thing else to note on the lever controlled Case GT is that if you have long legs like me and back up looking over your right shoulder, that lever lines up perfect with the left knee, and if you rotate in the seat when looking over your right shoulder, you will be going forward looking back.... Fast... And scarily.
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#7 wilberj OFFLINE  

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Posted April 16, 2015 - 05:45 PM

Nice work Ray. 


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#8 KennyP ONLINE  

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Posted April 16, 2015 - 06:15 PM

Another great build by Ray! Good job on that!


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#9 massey driver ONLINE  

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Posted April 16, 2015 - 06:33 PM

Nice work and fuctional as well. Always nice seeing stuff that you do.


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#10 hamman ONLINE  

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Posted April 16, 2015 - 06:46 PM

Man Ray, you made that look very easy. Nice job. I've thought about doing that to my Homelite. Simple but very functional. Your cost was almost nil on that. Great job. Thanks for sharing.                                                                                                                                                                                                Roger


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#11 toppop52 ONLINE  

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Posted April 16, 2015 - 07:21 PM

You made it look easy! I'm a little slow though, could you show me again, on my Deutz Allis 1920? Lol
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#12 superspeedex OFFLINE  

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Posted April 16, 2015 - 07:26 PM

That is a great idea


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#13 JDBrian OFFLINE  

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Posted April 16, 2015 - 07:40 PM

Thanks for posting this. I've got 2 JD 300 series tractors with hand control and I'd like to convert one of them to make it easier to operate. 


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#14 Trav1s ONLINE  

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Posted April 16, 2015 - 09:30 PM

Thanks for posting this. I've got 2 JD 300 series tractors with hand control and I'd like to convert one of them to make it easier to operate. 

 

Considering that myself on the 312


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#15 OldBuzzard OFFLINE  

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Posted April 16, 2015 - 11:28 PM

VERY clean and elegant solution :thumbs:  :thumbs:  :thumbs:


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