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John Deere 3020 reverse

M

Mkg3

New User
I have a Jd 3020 with synchro gearing. All forward gears work
but reverse in and of the ranges won't engage. There is no
grinding of the gear. I'm not familiar so any help would be
great
 
It could be as simple as needing adjusted or major with internal damage.

You have four speed ranges with low,high and reverse in all of them just with the two high reverse blocked off from the shifter.

Need more information to help you.
 
I haven't touched the linkage yet. All the forward gears work. When you go into reverse nothing happens. No meshing of the gears. I'm hoping it's just a linkage issue, not a tranny problem. I would think that some of the gears wouldn't work along with the reverse.
 
You do not under stand the way the transmission works. Like I posted you have four speeds with a top shaft that has LOW, HIGH and reverse on it THEN that drives the four range speeds. So if you lose reverse in any gear you lose it in all.

As for it effecting any of the other gears. It is a separate shift drum/SYNCHRONIZER by its self.

First check to see that the shift rods/linkage on the right side are not bent/broken. They are kind if behind the battery box.

We need more information to help.
1) gas or diesel.
2) New style or old style. (console or not)
3) Do you "feel" anything at all happening when you pull the shifter back into any reverse????


IF you feeling nothing than I would check the external linkage first. Then if nothing there is wrong remove the floor plate. Clean the transmission top off and remove the transmission top cover. Then you can look and see what is going on. It could be a shifter quadrant is bad. A bad roller on the shift fork. A stripped shift drum/collar/gear. It could be several things. Some simple and some serious.
 

Check for looseness in the 2 quadrants(parts keys #10 & #16)
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It's a diesel. The serial number 118097. All controls are on the dash. And nothing happens when It goes into reverse. I'm going to check out the linkage first.
 
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