Gear shift lock into gear

   / Gear shift lock into gear #1  

tbarrick

Member
Joined
Dec 10, 2018
Messages
26
Tractor
shibaura 1540
Just bought a used kioti lb 18914. Used it for about 90 minutes and gear selector locked into 3rd and wont come out. Shuttle shift works, low/high works but cant get out of 3rd......got the shift stick to move out of the H pattern 3 position but would not disengage from 3rd gear.... Is this going to be a split the tractor to work on transmission proposition?
 
   / Gear shift lock into gear #2  
I have no experience with your particular model, but do have considerable transmission experience, and can say (for near certainty) this is not a "split the tractor" problem. It is (almost) for sure a shifter - linkage problem. Typically the shifter reaches the 'neutral gate' before the forks actually fully disengage the 'active' gear (this instance 3rd gear). There is a safety feature in the transmission that prevents more than one gear (at a time) being selected, so why the shifter "thinks" the transmission is in neutral, it is in fact still in 3rd.

It can be caused by wear, or linkage coming loose, or something jamming the linkage.

It was not clear (to me) if (1) you cannot get the "shift stick" to move to neutral, or (2) it does move into neutral, but the transmission remains in 3rd.

If (1), probably something is jamming the shifter or linkage. This could well be something inside the transmission cover plate, and be a bit complicated to explain, and to perform for the first time.

If (2), probably something is worn / bent / or needs adjusting.

If you can still move the "shift stick" (into the neutral gate), try "re-engaging" 3rd gear with the stick, then straight from 3rd, through neutral, and into 4th.

If that works, something is very likely worn (or loose). If caused by wear, you can teach yourself to "work around" the wear; - pull (push) the shift stick well into the neutral gate BEFORE pushing it sideways to go into the next gear (1st or 2nd, in this instance)

Good Luck! please keep us posted on what you find.
 
   / Gear shift lock into gear
  • Thread Starter
#3  
Thanks for the encouragement. The shifter was not able to even go into neutral but I did manage to get it...somehow....into the neutral/other half of the H pattern but now it is locked into that position even though the transmission is still in 3rd gear.....if that makes more sense to you. This makes me think your # 1 explanation is the answer. I am not able to really tear into it until after Sunday as I need it to stay functional until after my son's wedding that I am hosting onsite and have other pressing issues.
 
   / Gear shift lock into gear
  • Thread Starter
#4  
Took the shifter lever cover off and this is what i see..... kioti trans.jpg

Have tried to pry the left traveler up (forward) even removed the detent spring and ball bearing at top of picture....to no avail. Cannot get it to come out of 3rd.

Meet Google Drive – One place for all your files

Here is the link to the picture if it won't show up.
 
   / Gear shift lock into gear #5  
Try moving the 1-2 shaft/fork (right one) forward/backward, and see if that frees up the 3-4 shaft. You should start with removing both detent springs and balls. There is a "blocking" pin that rides in grooves in the shafts (opposite ends from the detents). I am guessing that there is wear in that groove/pin and/or the detent grooves that is allowing both shift shafts to be slightly out of neutral at the same time, and that has jammed the 3-4 shaft in 3rd gear.

If 'jiggling' the 1-2 shaft doesn't help, take very careful notice if either/both shafts seem to be frozen in place. The forks are held tightly to the shafts, but there will be a slight 'looseness' between the forks and the grooves they ride in (typically 1/16" +/-). This "looseness" should be enough to determine if the problem is in the shafts, or in the synchronizers/sliding gear (looks like yours has the sliding gears - but it is kind of dark in your picture).

With both detents removed you should be able to move both shafts front to rear, and rotate - A VERY small amount, but enough to 'feel' that the shaft itself is not frozen. You should also be able to push (front to rear) on the gears ( synchronizers) that the forks ride in, and verify that they move freely (again, a very small amount, but enough to know that it will slide on the splines).

Without being there 'hands on' it is very difficult for me to 'articulate' what to look for, and how to check it. Just looking at the picture, I cannot visualize how you got the shifter out of 3rd gear to start with; there must be some 'movement' of the shafts???

Please keep us posted on what you find.
 
   / Gear shift lock into gear
  • Thread Starter
#6  
I am able to move the left (3/4) fork forward about 3/8 to 1/2 and inch. I will try the 1-2 fork next....
 
   / Gear shift lock into gear #7  
Maybe one of those locating split pins has sheared and allowed the selector to move along on the shaft.
 
   / Gear shift lock into gear
  • Thread Starter
#8  
Maybe one of those locating split pins has sheared and allowed the selector to move along on the shaft.

I took the next layer off and removed the "forks" and both of them slide independently. When one goes up or down the other is locked into position. The "balls" that they lock onto in the 2nd picture do not move freely. the bottom one jiggles for and aft but the front/top one does not. The left one is the 1/2 (right side slider) and the right/back is the 3/4 slider.20190627_112822.jpg20190627_112830.jpg
 
   / Gear shift lock into gear
  • Thread Starter
#9  
put it back together and got it out of 3rd.....used it for about 20 minutes and put it in 3 for a bit and it was locked again....eventually got it out and used 1 and 2 for the next hour with no issues. Got it into 4th a couple times and would grind and not be in gear and took a couple tries and then would lock into gear.....what do you think I should do...sell it? scrap it? Is this an easy fix?
 
   / Gear shift lock into gear #10  
Just a guess, is it possible the 3/4 shift fork is bent? Engaging 3rd hard and not quite engaging 4th?
 

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