4430 quad range linkage?

[Chris95]

Just bought this tractor and the dealer put new sychronizers on both the range and speed gears. It still jumps out of gear from time to time in B range. It wont stay in C at all. The shifter feels loose. Is there a spring that is supposed to provide resistance to the lever going side to side? When I shift to C range the lever will basically fall into tow. I am new to a QR and was wondering what holds it in gear?
 

[Tx Jim]

Worn out cab mounts can cause shifting problems. Detent ball(parts key #23) help hold shift drum in place
 

[Tech 7]

I will add to what TxJim said..make sure that shaft (key #11) has minimal endplay. Endplay is removed by changing the position of arm (17) on the shaft.
 

[Chris95]

Can I put a larger spring in to apply more force to the detent ball?
 

[Tx Jim]

The holes can get worn in parts # 21 causing the ball not to hold very well. If I were you I would be having a real serious talk with the dealership that the tractor was purchased from.
 

[tim s]

What year is it?? The picture Jim is showing is not for the ranges, it's the bottom one that needs attention, with the same regards to the detent stuff, but the newer ones had a spring that went from the lower shift link to the cab to give a bit of counter balance to the heavy shift lever, and be sure the shifter is lined up with the shift plate in the cab.I'm wondering if who ever went into the transmission should have went on down and re-built the bottom shaft too????
 

[Chris95]

Yeah it seems like if it where that worn they should have replaced it
while it was tore apart.
I got the tractor home chisel plowed for about an hour and told
them to come get it. Two months later it they brought it back
staying in gear much better but it is still not right.
 

[Chris95]

1974
 

[tim s]

Thats an early one then, in mid 1975 they made a lot of good changes in the 4430's, that model did not come with the spring I was talking about but you could put one on it..
 

[Chris95]

I will try the spring. I am going to call the service manager tomorrow to ask about the detent parts being replaced. I would think they would have which makes me think it is more of an adjustment thing. There is an adjustment for the lever to the shift plate in the console?
 

[tim s]

The linkage adjustment is a turn buckle on the shift rod, to get it right you need to feel it in gear then adjust the rod to where it matches up with the shift plate, but the shift plate is for placement not to hold it in gear.
 

[Tx Jim]

I'll try again. Sorry for the incorrect photo but it's been many tears since I looked inside a QR trans.

 

[tim s]

Don't beat yourself up Jim,,I've been into 3 this month, and one waiting to come in...I know linkage "can" be the problem some times with these not staying in the ranges,,,but "most" of the time it's some thing going on with the bottom shaft area,worn snap ring grooves, worn shift collars/gears,end play issues, and such...but you need to prove the "on top" stuff first...
 

[Tx Jim]

Tim
After you stated incorrect photo I thought to myself " what was I thinking" as that drum shifter goes on a syncronizer and not associated with A-B-C-D.
 

[tim s]

You have been doing good at posting the break down pics,,I have been up to my neck with transmissions lately, so I'm staying "fresh" on them....got a 4020 down now for a top shaft re-build..will be going back together with it today..