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Cub Lo-Boy 154 trans engages, but wont move
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- Farmall560
- 10+ Years
- Posts: 59
- Joined: Fri Dec 22, 2006 6:20 pm
- Location: St Clair Shores, MI
Cub Lo-Boy 154 trans engages, but wont move
Hello all. I'm looking for possible causes before I tear into it. 154 engages all gears. The trans shifts like it should, but it wont move. Yes the clutch and flywheel are turning on the trans. Clutch isn't the issue. I can engage any gear without the clutch, and you can hear just a slight amount of gear clash as it shifts in, and the tractor slightly jerks forward as you do this. I can rock the tractor while in gear and hear what sounds like chattering. I'm thinking it's the input shaft gear? Any ideas before I tear into her next week? Thanks all
Brian
Brian
- John *.?-!.* cub owner
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154 tranny is the same as a cub tranny, except for a modified main shaft. Your problems would be more than an input gear (since there are 4 different gears that run on the main shaft to drive the other gears), unless you have a creeper gear between the clutch and the tranny. If you are sure the clutch is not slipping, I would look to a broken main shaft (rare, but has happened), or something in the rear end, or possibly a final drive top shaft being broken (been there). Time to pull the tranny cover and look.
If you are not part of the solution,
you are part of the problem!!!
you are part of the problem!!!
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- 10+ Years
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- Joined: Sat May 26, 2007 5:29 pm
Flywheel pin??
I think the flywheel is pinned to the trans mainshaft. It is common on 154s for that pin to shear. also, a PO may have replaced it with a bolt, really not a good idea, and will almost surely shear again. If run loose too long it can ruin the flywheel hub and/or shaft. Check to be sure the shaft itself is turning, not just the flywheel.
Otherwise pull the cover and have a look.
Otherwise pull the cover and have a look.
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Check the flywheel pin first, does the tractor roll in neutral? If not then pull the cover off the tranny you could have a broken fork and its in two gears at once. While the shifter may feel ok it not fully shifting. The only other thing i could think of is something is broken and jamming in the tranny or the pinion/ring gear area. I think pulling the shifter cover and the rear tranny cover will give you a looksee into it when everything else looks to be ok.
I'm technically misunderstood at times i guess its been this way my whole life so why should it change now.
- Farmall560
- 10+ Years
- Posts: 59
- Joined: Fri Dec 22, 2006 6:20 pm
- Location: St Clair Shores, MI
Re: Flywheel pin??
kencombs wrote:I think the flywheel is pinned to the trans mainshaft. It is common on 154s for that pin to shear. also, a PO may have replaced it with a bolt, really not a good idea, and will almost surely shear again. If run loose too long it can ruin the flywheel hub and/or shaft. Check to be sure the shaft itself is turning, not just the flywheel.
Otherwise pull the cover and have a look.
Found it. Bolt broke out of the flywheel hub, where it connects to the input shaft of the trans. Caused the flywheel to crack also so off to the dealer I go for parts. Thanks for the input. Figure for future info, I would post back.
- John *.?-!.* cub owner
- Cub Pro
- Posts: 23701
- Joined: Sun Feb 02, 2003 2:09 pm
- Zip Code: 63664
- Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.
- Location: Mo, Potosi
- Farmall560
- 10+ Years
- Posts: 59
- Joined: Fri Dec 22, 2006 6:20 pm
- Location: St Clair Shores, MI
- John *.?-!.* cub owner
- Cub Pro
- Posts: 23701
- Joined: Sun Feb 02, 2003 2:09 pm
- Zip Code: 63664
- Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.
- Location: Mo, Potosi
- Bigdog
- Team Cub Mentor
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There is a numbered lo-boy group on Yahoo Groups. There are some great parts resources there. You might also check with Dave Hull here on the list.
Bigdog
If you can't fix it with a hammer, you've got an electrical problem.
My wife says I don't listen to her. - - - - - - - - Or something like that!
http://www.cubtug.com
If you can't fix it with a hammer, you've got an electrical problem.
My wife says I don't listen to her. - - - - - - - - Or something like that!
http://www.cubtug.com
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- 10+ Years
- Posts: 36
- Joined: Sat May 26, 2007 5:29 pm
154 flywheel
Might also check ebay. There is a seller that often parts lo-boys. I bought a head from him.
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- 10+ Years
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- Joined: Sat Jul 22, 2006 5:02 pm
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- Farmall560
- 10+ Years
- Posts: 59
- Joined: Fri Dec 22, 2006 6:20 pm
- Location: St Clair Shores, MI
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