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JD 8770 24spd Powersync Transmission issue
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coastalBend
Posted 9/29/2020 06:14 (#8520800 - in reply to #8519765)
Subject: RE: JD 8770 24spd Powersync Transmission issue


south texas
Its been awhile since ive done mine so maybe ive forgotten.

If u still have 1 2 the 2 speed is just fine. No other cluch pacs besides the master clutch and i would not move at all.

Did u try to plow in the working gears? Maybe the lord coupler is bad?

I agree that it doesn't make sense that u have 1 in b but not in c.

U like others said u have a simple gear box. All gears turn all the time. I would definitely check linkages. U can remove the rods from the transmission and feel each shift.

The upper shift lever is 1 3 5 and r

Lower is a b c d.

https://talk.newagtalk.com/forums/thread-view.asp?tid=689331&posts=1...


U can see in the link pics that its quite simple just big.

On your sheet i see a pattern. Im gonna think about it but i can't find a reason for now. I would disconnect and shift by hand on transmission. Get it out somewhere and put it in gear with engine off, then start up and see what happens. Im thinking u have a linkage or cab shifter issue not a transmission issue. I wouldn't run it besides to do diagnosis.

Edited by coastalBend 9/29/2020 06:19
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