Need Help - Adjustment of Throttle and Carb Linkages for 420

MS-420T · Feb 16, 2015

I have a 1958 420T, and need a little guidance in adjusting the governor linkages because both the I&T and Deere service manuals were lost. I was able to find a partial 420 service manual online, but it seems to refer back to the 40 service manual for parts that are similar. In it, there was a picture of the governor linkages that shows the throttle-to-governor linkage should be two turns long, and the governor-to-carburetor linkage should be two turns short. Can anyone provide me with a procedure for setting these? I'm not sure Which linkage should be set first, and where I should set the throttle during adjustment? Thanks in advance.

James Howell · Feb 17, 2015

Reviewed the John Deere Service Manual SM-2013 under the [b:654c4848f0]INSTALL AND ADJUST GOVERNOR LINKAGE[/b:654c4848f0] topic on page 70-5-6.

Hope this helps.

MS-420T · Feb 17, 2015

Thanks! Now I won't have to buy a new service manual until its time to do a rebuild. I wish JD would just provide all their classic tractor manuals online for free to support the people that keep them up and running.

Frank 41 · Feb 17, 2015

MS, you will have to rub the genie bottle for that. John Deere doesn't give anything away. They keep changing their web site around so you have a hard time getting into the parts section.

Need Help - Adjustment of Throttle and Carb Linkages for 420

MS-420T

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James Howell

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MS-420T

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Frank 41

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