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  #1  
Old 10-03-2016, 04:22 PM
cgmiller cgmiller is offline
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Default Cub Low Boy 154 Clutch Issue

Hello Folks,

I just picked up a sweet Cub Low Boy 154 Friday night. It has an issue with the clutch. It pops out of gear when in 1st or reverse unless the throttle is pushed way up. You cant get the tranny into gear unless the throttle is dropped way down (if that normal) and then unless you are holding the lever it pops out of gear immediately. Not an issue in 2nd or 3rd gear. I tried mowing a little Saturday afternoon (in the rain) before I put it in the barn and she did not seem to like going up hill in 2nd gear and would start to bog down..now this is my first time with an actual piece of machinery with a clutch and gears since I have a stick shift car 35 years ago. Thanks for the info~!o
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Old 10-03-2016, 05:59 PM
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Sam Mac Sam Mac is offline
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This is above my pay grade, time for Dr. J-Mech.
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  #3  
Old 10-03-2016, 06:11 PM
J-Mech J-Mech is offline
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Hello Mr. Miller and welcome to the forum!

We do not have a section for the Lo-Boy tractors so we use the "General Talk" area. I moved your thread to the proper place.

As far as the trans popping out of gear, it likely has a worn shift fork on the 1st/rev slider. Either that or the edges are wore off the sliding gear because of the clutch issue. (See below.) It is also possible that the detent on the shift shaft is not working.... You will have to take the trans apart to fix it no matter which issue it is. Not a simple job.

The clutch on a 154 is on the front of the transmission. It does have a transmission brake. It's job is to stop the input shaft when the clutch pedal is depressed so that you can get it into gear quicker and without grinding. There is an adjustment procedure which is outlined in the service manual. All parts are available for the clutch.

The manual can be downloaded here:
http://service.mtdproducts.com/Train...-gss-1408.html

For parts, I suggest these guys:
http://hamiltonbobs.com/cart/search/...cub-lo-boy-mm4

Let me know if I can be any help.
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Old 10-03-2016, 09:10 PM
cgmiller cgmiller is offline
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John,

Thanks for the info. I reached out to Bob before I bought the tractor. I told him that he would be my new best friend for a bit. Either way it sounds like I should take her down the road to the local mechanic shop so that it gets fixed properly and I don't spend months trying to fix it.
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Old 10-03-2016, 10:43 PM
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Lanceskene Lanceskene is offline
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The tranny itself is pretty basic and easy enough to work on but its a good half days work just to split the tractor. I had a shift fork issue in my first 154 so Ive been there and fixed that but since then the rear pressure plate broke so that 154 is now a parts donor for my second 154. They are actually pretty simple basic machines to work on.
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Old 10-03-2016, 10:55 PM
J-Mech J-Mech is offline
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Quote:
Originally Posted by Lanceskene View Post
The tranny itself is pretty basic and easy enough to work on but its a good half days work just to split the tractor. I had a shift fork issue in my first 154 so Ive been there and fixed that but since then the rear pressure plate broke so that 154 is now a parts donor for my second 154. They are actually pretty simple basic machines to work on.
Lance, I agree with you. They are simple..... but they are much larger than a garden tractor. If you don't have a decent garage with a fairly large jack, jack stands, and some kind of a crane or splitting stand.... It's just a bit more than the average do-it-yourselfer has at home to work with. It's not the complexity so much as the size.

I can split a 100HP tractor in a couple hours. I'd honestly rather do that than split a Lo-Boy. They just aren't as "friendly" to work on.
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Old 10-03-2016, 11:41 PM
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Lanceskene Lanceskene is offline
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Oh ya I wasnt suggesting its a job everyone can, or should do, but I think if people want to own antique tractors and actually use them they should try and learn how to work on them, and in this case it is a 'fairly' simple job once you get all the body work and wheels out of the way... which as you mentioned does require some equipment that the OP may or may not have access to.
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Plus 35 or so non IH tractors
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Old 02-25-2017, 09:29 PM
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drglinski drglinski is offline
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Quote:
Originally Posted by J-Mech View Post
Lance, I agree with you. They are simple..... but they are much larger than a garden tractor. If you don't have a decent garage with a fairly large jack, jack stands, and some kind of a crane or splitting stand.... It's just a bit more than the average do-it-yourselfer has at home to work with. It's not the complexity so much as the size.

I can split a 100HP tractor in a couple hours. I'd honestly rather do that than split a Lo-Boy. They just aren't as "friendly" to work on.
What you mean I shouldn't just rely on my back to split one of these?
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