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420 C John Deere

Yesterday's Tractor Forums
Starting points are :

Idle 1-1/4 turn out

Main load 2 turns out

Fine tune from there.

Do you have the 420 & 430 Service Manual SM2019? Operator's Manual OMT31756 for serial number 125000 and before, or OMT42757 if your serial number is 125001 or after? If not, you should get them.

Here is a link to the online parts catalog for the 420 & 430 tractors, including crawlers.

Parts Catalog PC505
 
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