Cub Low-Boy won't go

Brian60950 · May 10, 2014

No go in any gear, high or low range.

Checked the pin on the shaft behind the dry clutch & it's good. Input shaft to transaxle is turning.

There was no incident. About 3 years ago I simply left it running in neutral & got off of it to move a pickup that was parked in the grass, got back on, put it in gear & nothing.

No gear grinding, no jerky half-attempts at motion, .. just nothing.

I want it back in operation because this little residential grade Gravely Xero Turn Radius mower I've been using absolutely kills my tail bone. It feels like I'm riding a go-kart through a freshly plowed corn field. I got off of it for a minute to fire up my '46 Ford 2N to use it to move a trailer so I could mow where it was parked, and with the leaf spring under the seat it was like riding in a Cadillac compared to that ZTR mower.

Is there a common, simple, easy fix issue with the Cub Low Boys or is this going to end up costing me megabucks to fix?

steve alderman · May 10, 2014

theres also a bolt on that flange piece that bolts to the flywheel they like to break also if tractor was outside for any period of time them clutch disk like to get stuck

Brian60950 · May 10, 2014

(quoted from post at 20:05:58 05/10/14) theres also a bolt on that flange piece that bolts to the flywheel they like to break also if tractor was outside for any period of time them clutch disk like to get stuck

The input shaft to the trans is turning, aft of the clutch. It's a dry clutch located between the engine & trans, under that yellow tunnel flange.

I'm almost wondering if the axles have keyed shafts & a key could be sheared but I can't see any of the axle. The hubs appear to be butted up right against the axle housing with none of the axle visible from underneath. I can't tell if it's a keyed shaft or if it's a splined shaft. I'd imagine that if it was a splined shaft that suddenly stripped out, there would be some grinding and jerky attempts at motion or something. But it's like it's in neutral in all gears.

When I let off the clutch in gear, I can hear the engine RPMs drop just a tiny bit more than when I let off the clutch in neutral. So I know that gears inside the trans are at least turning.

Janicholson · May 11, 2014

If you are sure the input shaft into the trans is spinning with your foot off the clutch, and you are sure the gear shift lever is in its groove in the shift rails, it is time it remove the cover. Jim

Denny ('60 Lo-Boy) · May 11, 2014

Is this an International 154/185/184 Lo-Boy or an International Cub Lo-Boy? Totally different.

danmcdonald · May 11, 2014

Remove shifter the tip may be broken off the end. Let use know what you find.

Brian60950 · May 11, 2014

(quoted from post at 08:54:14 05/11/14) Is this an International 154/185/184 Lo-Boy or an International Cub Lo-Boy? Totally different.

I don't know. It has the IH logo on the front, "Cub Lo-Boy" on the front side of the hood, and 185 at the back sides of the hood.

John M · May 11, 2014

Does moving the hi/lo selector do anything? What you have is commonly considered a 185 Lo Boy. Just sitting there running is not going to do anything, Im thinking maybe you bumped the hi/lo shifter and its kinds stuck in between and wont move.

Brian60950 · May 11, 2014

(quoted from post at 17:59:37 05/11/14) Does moving the hi/lo selector do anything? What you have is commonly considered a 184 Lo Boy. Just sitting there running is not going to do anything, Im thinking maybe you bumped the hi/lo shifter and its kinds stuck in between and wont move.

Tried hi/lo, all forward & reverse gears. Nothing.

John M · May 12, 2014

Sorry, didn't see that in your original post. At this point, Im going with the shifter. I cant remember what my 154 did, I think maybe wouldn't come out of gear, but I do remember the shfter feeling like it was shifting right, when it really wasn't.

mkirsch · May 12, 2014

The 185 means it's a 185 Lo-Boy.

If you can see the transmission input shaft turning, you're going to have to dig deeper. The shifter comes off with 8 bolts or something and gives you good visual access to the transmission.

The worst part about it will be getting the sheet metal off to get access to the transmission.

Brian60950 · May 12, 2014

(quoted from post at 06:14:56 05/12/14) The 185 means it's a 185 Lo-Boy.

If you can see the transmission input shaft turning, you're going to have to dig deeper. The shifter comes off with 8 bolts or something and gives you good visual access to the transmission.

The worst part about it will be getting the sheet metal off to get access to the transmission.

Aint looking forward to that.

I got some other stuff to do first, mainly rounding up tools & getting them all in the same barn. I have no idea what I was thinking when I decided I needed to have 3 different workshops.

Then I guess I'll start pulling it apart.

Cub Low-Boy won't go

Brian60950

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steve alderman

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Brian60950

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Janicholson

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Denny ('60 Lo-Boy)

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danmcdonald

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Brian60950

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John M

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Brian60950

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John M

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mkirsch

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Brian60950

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