Slips out of 5th gear

KC.RAIDER

New member

Equipment
M9540
May 22, 2017
10
0
0
Arkansas
2007 9540 works great but i've noticed when I get up to speed like on the hwy moving from field to field, it will slip out of 5th gear unless I hold the shifter forward. It doesn't do it immediately. Seems to do it as I get up to speed and the RPM's get up.

Any thoughts on what it could be?
 

hodge

Well-known member
Lifetime Member

Equipment
John Deere 790 John Deere 310 backhoe Bobcat 743
Nov 19, 2010
2,905
453
83
Love, VA
Patience. This is a very helpful group. If no one has jumped in, yet, that means they don't have experience. The majority of owners have small tractors- it may take a little time before a 9540 owner, or a shop tech, sees the post and answers.
 

Kubota Newbie

Active member

Equipment
M4500, New Idea Cut-Ditioner, JD 14T Baler, IH "Plow Chief" plows, Oliver Rake
Dec 28, 2010
533
81
28
Mount Vernon, Ohio
So this isn't just necessarily a Kubota problem. Usually, it is one of two or three things. 1). Gear wear that causes the gear to walk back against the other, most often a problem in sliding gear transmissions, uncommon in syncro-mesh/ring shifted style transmissions. 2). & more likely, a misadjusted shift linkage that is keeping it from really being all the way into gear in the first place. This is often mistaken for # 3). Which would be worn or weak detents on the shift mechanism (2 acts like 3 because it really isn't shifting fully and not engaging the detent completely in the first place). 1 & 3 seem unlikely to me given the age of the tractor. Start with #2.
 

lugbolt

Well-known member

Equipment
ZG127S-54
Oct 15, 2015
5,248
1,924
113
Mid, South, USA
The cabs are rubber mounted. The shifter is mounted to the cab, and the linkage mounted to transmission. So sometimes if the linkage and/or shifter isnt adjusted just right, the cab will move around a little and pull the shifter out of gear. Or cab mounts could be loose or worn.

If not a cab model, probably just a linkage issue. Is this a HD transmission or a standard DT model? HD=hydraulic shuttle. DT=standard gear drive, hard to shift from forward to reverse usually.

Have also run into a shifter or two that were getting worn and/or stiff. Usually can just lube everything up in those cases, and they'll work fine until they dry out again.
 

KC.RAIDER

New member

Equipment
M9540
May 22, 2017
10
0
0
Arkansas
Thanks for the help guys! It's a shuttle shift and I just find it odd that it's only one of the 6 gears it does it in.

So if it is a lube issue, where do you live it and what lubricant do you use. I will admit it seems stiff and hard to tell what gear you are shifting into.



The cabs are rubber mounted. The shifter is mounted to the cab, and the linkage mounted to transmission. So sometimes if the linkage and/or shifter isnt adjusted just right, the cab will move around a little and pull the shifter out of gear. Or cab mounts could be loose or worn.

If not a cab model, probably just a linkage issue. Is this a HD transmission or a standard DT model? HD=hydraulic shuttle. DT=standard gear drive, hard to shift from forward to reverse usually.

Have also run into a shifter or two that were getting worn and/or stiff. Usually can just lube everything up in those cases, and they'll work fine until they dry out again.