Grind When Change Gears - B9200

[MMH]

I have a B9200 that grinds when I change gears. This is a non-synchro, but it still grinds when I'm standings still & changing gears. Does not seem to to do it when changing ranges, just gears. Does not matter it I shift fast or try to ease it in (i.e. very slow). Is this a problem? Don't like the way that it feels/sounds, but is this something to worry about? As this is a non-synchro tranny, there are no synchros to replace, so what would cause this? The clutch seems to work good. BTW, the clutch is a independent (2 stage) clutch.

 

[KennyV]

... This is a non-synchro, but it still grinds when I'm standings still & changing gears.... so what would cause this?

If you want to shift gears with out having gears grinding... you Need a synchronized transmission...
Since yours is not... It is Not designed to shift on the go... instead you Must start in the gear you wish to use & stop to select a different gear... KennyV

 

[MMH]

If you want to shift gears with out having gears grinding... you Need a synchronized transmission...
Since yours is not... It is Not designed to shift on the go... instead you Must start in the gear you wish to use & stop to select a different gear... KennyV

I understand. However, as I said in the first post, it grinds even when I am stopped & select a different gear. Is this normal? Anything that I can do to get it to stop? Can't believe that over time that this grinding will not wear down the gears.

 

[Chilly807]

I have a B9200 that grinds when I change gears. This is a non-synchro, but it still grinds when I'm standings still & changing gears. Does not seem to to do it when changing ranges, just gears. Does not matter it I shift fast or try to ease it in (i.e. very slow). Is this a problem? Don't like the way that it feels/sounds, but is this something to worry about? As this is a non-synchro tranny, there are no synchros to replace, so what would cause this? The clutch seems to work good. BTW, the clutch is a independent (2 stage) clutch.

It took me a couple years to get the answer I'm going to give you, and it is so simple you'll just shake your head if it works for you.

My L3400 is silky smooth going from one range to another as long as I don't release the clutch in between, if I do it grinds every time.

Try pressing the clutch all the way down (through both stages), wait 5 seconds, then put it in gear.

Even in neutral, with the clutch released the transmission input shaft is spinning at engine speed whether it's in gear or not, while the output shaft is stopped as is the tractor. When you depress the clutch and wait a few seconds (5 works for me) it allows the input shaft to come to a stop and prevents the gears from grinding.

I tried only pushing it down halfway to disengage the drive clutch, but it seems to work better with the Kubotas if the clutch is all the way down.

I also found it may take a few seconds longer if the trans fluid is hot (thinner).

If it was a synchro tranny the synchro cones act as a brake to unitize the gears before they engage, since it isn't we have to do it manually by allowing them time to come to a stop.

Good luck and let us know if it works! If it doesn't, you may need a clutch adjustment.

Sean

 

[PHILIP8N]

Is your clutch in proper adjustment? Is the clutch completely disengaged when the pedal is fully pressed down? Can you completly press the pedal all the way down and is the linkage working properly? Just some thoughts. Philip.

 

[MMH]

It took me a couple years to get the answer I'm going to give you, and it is so simple you'll just shake your head if it works for you.

Going from one range to another is always smooth.

Even in neutral, with the clutch released the transmission input shaft is spinning at engine speed whether it's in gear or not, while the output shaft is stopped as is the tractor. When you depress the clutch and wait a few seconds (5 works for me) it allows the input shaft to come to a stop and prevents the gears from grinding.

This makes sense. I normally wait w/ the tranny in neutral & then push in the clutch & put in gear. I'll try waiting several seconds AFTER depressing the clutch.

Good luck and let us know if it works! If it doesn't, you may need a clutch adjustment.

How do you adjust the clutch? I suppose you mean that the linkage is not adjusted such that the clutch fully disengages? It's a dual stage clutch so I would think that if I fully depress it & disengage the PTO then the tranny would also be fully disengaged.

 

[Chilly807]

For the clutch adjustment, I think you're right that the linkage is the only adjustment for the main drive clutch. There is, however, another adjustment on mine that you access through the side of the bell housing. It may be for the PTO clutch, but I'm not 100% sure.

The L3400 has an access plate behind the right side loader bracket that allows you to get in and adjust the clearance for this.

I think you'll have a much quieter shift by waiting after the clutch is depressed, it works like a charm on mine.

Sean

 

[kubotacres]

I've noticed my new L3200 does this also. A few seconds in between shifts fixes it no problem.

 

[MMH]

I think you'll have a much quieter shift by waiting after the clutch is depressed, it works like a charm on mine.

This does work. I guess I'll have to slow down on my loader work. I now have more appreciation for shuttle shifts.

 

[Elkins45]

Agreed. Hold the clutch in for a few seconds before shifting and the grinding will end.