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Lo-Boy

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Brian

06-26-2001 05:31:00




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Many thanks to all that helped me with diagnosing my 1959 Cub Lo-Boy up to this point. The tractor is now running, but here is the new problem:

This should have been a dead give-away when I was looking at buying this tractor, but there was a piece of wire attached near the clutch pedal so that you could depress the pedal and wire it into the disengaged position. Also, the top shifter plate only had 4 bolts in it.
Reason: transmission stuck in gear.

My Cub (probably all Cubs?) has a 3 speed transmission. Now that it is running, when I shift it into a gear (it acts like it is shifting)all the tractor does is bog down like the transmission is binding, obviously trying to go into two gears at once. Any gear does the same.
Is this a semi-easy fix? What do I look for or do once I remove the shifter plate? I am willing (and I think able) to do anything it will need. But is this a simple or common problem?
Thanks again for any or all help!

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Bama Binder

06-26-2001 06:16:03




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 Re: Lo-Boy in reply to Brian, 06-26-2001 05:31:00  
Can you explain more? With the engine running and the clutch depressed, does the engine bog down? Or is it just when you let out the clutch? Does the tractor move at all?

If it just bogs down when you let out the clutch, and does not move, then it is very possible that it is stuck between two gears. All Cubs have 3 speeds. Could be a bent shifter fork. Pull off the tranny top cover and take a look. If you have a repair manual it will be a huge benefit to you.

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Brian

06-26-2001 06:37:46




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 Re: Re: Lo-Boy in reply to Bama Binder, 06-26-2001 06:16:03  
HI Bama,
With the engine running and the clutch depressed, the engine does not bog down. Only when I let the clutch out. Even if the tractor is in the neutral position, it still bogs down when letting the clutch out. The tractor does not move at all.
I do have the IT manual, but of course it doesn't give much 'hints' or 'tricks' when dealing with this. The manual says: "try to identify the problem before disassembling transmission to far". So I am hoping it may just be an easy fix. Obviously this tractor had done this numerous times before I got it. It wasn't locked up when I loaded/unloaded it, but when I was rebuilting the motor, I 'rocked' the tractor back and forth in every gear to check things, and now it is locked up.
Thanks, look forward for more information.

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Wildbill

06-26-2001 08:19:14




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 Re: Re: Re: Lo-Boy in reply to Brian, 06-26-2001 06:37:46  
Can you roll the tractor in nuetral?



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Brian

06-26-2001 09:04:23




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 Re: Re: Re: Re: Lo-Boy in reply to Wildbill, 06-26-2001 08:19:14  
No.
The tractor will not roll in neutral



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RAW in IA

06-26-2001 19:31:36




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 Re: Re: Re: Re: Re: Lo-Boy in reply to Brian, 06-26-2001 09:04:23  
It is definatelly stuck in two gears. My cub will sometiomes not come out of 2nd in the iwnter if I shift to reverse too fast. Take the top off the trans., (4 bolts I think) and you should be able to line up the slots in the shifting forks with a screwdriver or bar. It is possible the detents that hold the forks in neutral are worn, or that the forks are bent.



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