KAMA TS254 Reverse problem

[thingy]

Yeah I believe so,,didn't help? thingy

 

[lakespirit]

I looked at his pics and then into my tractor. I am not seeing the wear he described, but it is the same issue.

thanks, Jeff

 

[thingy]

Maybe go over there and register and ask him/them,,? thingy

 

[greg_g]

I looked over there, and saw was 3rrl's reference to his shuttle shift. Is that the one you're referring to?

Apples and oranges. The KM series doesn't have the same kind of shuttle arrangement as does the TS series. I know, I've got one of each. The pin/spring/ball/detente method is used in both, but location and access is much simpler on the KM series.

//greg//

 

[lakespirit]

Greg,

You are correct about the ball, etc. not being easy to get to. Does anyone else have some ideas for me? I can't seem to find what's causing this problem? I guess if I have to, I'll wind up pulling the tractor apart like when I replaced the clutch.

 

[greg_g]

My TS354C has only a little over 150 hours on it, but I haven't had any issue with the shuttle yet. It moves very freely, I can see where more spring tension would be desired. But so far I haven't had it pop out of either forward or reverse. On my KM454 on the other hand, it did it almost from Day One. But I was able to fix that by and adustment on the side of the shift lever itself. Right now my 2wd/4wd lever won't stay in 4wd, another spring issue I'm sure. But like I said, it's a helluva lot easier to get at. I'm sure I'll have much more difficulty finding the right spring, than I will actually installing it.

Wish I could be of more help, but I don't wanna take apart something on my own tractor that ain't broke just for the sake of seeing how to get at it.

//greg//

 

[bluechip]

Based on the fact that you have to pull it out of reverse then re-engage reverse, I am thinking something inside the gearbox is amiss. a gear is probably floating on a shaft and is not fully engaging, then pops out, pulling it out of gear may allow it to shift back closer to it's correct position, re-engaging gives another bite on it. We had a similar problem on one tractor that failed our post assembly testing. That one would not stay engaged, as soon as you stepped on the clutch it would release, we would pull it out and put it back in gear (cant remember if it was forward or reverse now) and it would go until the pressure on the gears was relieved when the clutch was pushed in. A similar problem in your tractor might explain why it happens when backing down a hill, once gravity overtakes the tractors own drive, the pressure on the gear train is removed and things can shift. In the one we had, it was a snap ring out of place allowing an idler gear to slide off its bearing. Of course it is deep inside the front portion of the gearbox (shuttle area). You coule try driving on flat ground in reverse stop and step on the clutch and then restart a few times and see if you can get it to pop out under those condidions.

 

[lakespirit]

Preparing to tear into it tonight. Do I separate the tractor at the gear box where it joins to where the 2wd-4wd and the hi-low shifters are? It looks like only 4 bolts. Sound about right?

 

[lakespirit]

Pics from KAMA parts manual. Could you point to a part number and picture number and tell which snap ring I'd be looking for? How do I get inside the case?

Does the whole rear end, etc have to come off???????

 

[bluechip]

The area I have seen this problem in on another tractor is in the Mid connecting housing (page 15 of your parts book if you have the same edition I am looking at) the problem on the other unit was snap ring 6 was out of place, allwoing gear 4 to slide back and forth. this is the idler gear that works with gear 16 to make reverse. To tear down this box you split the tractor, then remove the steering system and anything else attached to the bellhousing area. The mid connecting housing can be unbolted from the transmission/diff housing, rear axle assy and benched for dissassembly, repair.
Sorry for those interested in this thread that dont ahve the book. I don't have all the scanning/picture posting skills to be very impressive on these boards. I did hear that a picture is worth a 1000 words, but i have not found that I can use 1000 words to describe something very effectively...