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John Deere Tractors Discussion Forum
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4620 diff. lock

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86ontherez

05-31-2004 19:58:56




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my son was working our 4620 today and used the diff, lock in a slick spot and now it wont disengage even after hitting the brakes like the manual says. can anyone help??




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charles

06-01-2004 00:09:29




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 Re: 4620 diff. lock in reply to 86ontherez, 05-31-2004 19:58:56  
If this is similar to the 4430 then remove the 2 cowls around the dashboard and look at the mechanical interlock between the difflock and the brake ,and you will see the problem ,the diff pedal shaft may have loosened (awkward nut to tighten)



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chris

05-31-2004 20:49:23




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 Re: 4620 diff. lock in reply to 86ontherez, 05-31-2004 19:58:56  
Did you try and pull up on the diff. pedal itself to see it's actually up, maybe the linkage from the brake pedal is broke or not attached. Or is something wedging the pedal. While moving the diff. pedal you should see the spool/shaft move up and down. Let us know what you find. chris



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