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Old 02-20-2018, 12:16 PM
Hober43 Hober43 is offline
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Join Date: Feb 2018
Location: Pittsburgh Pennsylvania
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Default 1450 transmission question

Hi all. New to sight. I have been reading a lot of the post and they are very informative. I recently bought a 1450 quietline and I am having troubles getting the forward and reverse lever to stay in the neutral position. I tried adjusting the cam pivot, seems to work for a short time and then the neutral position then jumps to about halfway up in the forward position. I am kind of new to the cubs and looking for some advice on what is wrong or where to start looking for the issue? Any help would be greatly appreciated.
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Old 02-20-2018, 01:08 PM
J-Mech J-Mech is offline
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Are the trunion springs present on the plate? That could be the issue. Pull the tunnel cover off and look for lost motion. If you don't see any, it likely has a broken spirol pin on the swashplate on the inside of the hydro. To fix it, complete removal and disassembly would be required.
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Old 02-20-2018, 09:32 PM
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sawdustdad sawdustdad is offline
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First, welcome to OCC, Hober43!

If J-Mech is right and it's the pin on the trunnion shaft inside the hydrostat, that's a challenging repair. Let's hope it's something else in the linkage from the dash to the trunnion arm on the outside of the hydro. You'll need to operate the lever and watch the linkage for any play or damage. Probably best to put the rear wheels up on jack stands. There should be a set of springs like the pictures below on the lever operating the hydro. A small spring inside a larger spring with a pair of metal end caps.

If the springs are there (inside that shiny metal rectangle-see pictures) and there is no obvious looseness in the linkage, then it could be the trunnion shaft pin and the tractor is actually dangerous to operate as you may lose control of it and not be able to stop it. Hence the jack stands...

Seems to me the trunnion shaft pin is a low probability failure, so look elsewhere first.
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Old 02-21-2018, 11:09 AM
Hober43 Hober43 is offline
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Default Added a pic.

Thanks to all for the info. J-Mech the spring is still there and there is a little bit of slop. Maybe it is just time to replace the spring. I give that a try this weekend first seems to be the lesser of the 2 evils. thanks again I give an update later on after I get the new parts installed.


Added a pic. To good to let go!!!!
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Old 02-22-2018, 04:23 PM
Cadet Guy Cadet Guy is offline
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In my experience the hydro linkage from the dash to the hydro plates being mentioned above are generally the source of the issue. Any free movement or linkage slop will result in the issue you are having. I have found everything from the hydro handle rivets (to the spring plate just under the dash) being loose, to the bearing surfaces for the linkage cross shaft (that goes between the sides of the steering support) to be worn, to the pin that follows the track on the hydro cam being worn from following the slot.

I would also suggest that the jack stands being mentioned are a must to insure you have control of the tractor while making adjustments. With the rear tires off the ground, it is must easier to confirm true neutral. Verify that the neutral position is where it needs to be in the hydro lever slot in both forward and reverse (by using the clutch pedal to return the linkage to neutral). As a side note, run the tractor a couple of minutes to warm the hydraulic fluid before making any final adjustments.
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Old 02-24-2018, 08:10 PM
AndrewNoyes AndrewNoyes is offline
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You might also search this site for "trunnion fix" or "trunnion repair". It has been described quite clearly. In a nutshell, the hole those springs run in can get worn out. I welded mine, and filed it back to size. I put in new end caps and springs as suggested. It holds speed far far better now.
Good luck!
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Cub Cadet is a premium line of outdoor power equipment, established in 1961 as part of International Harvester. During the 1960s, IH initiated an entirely new line of lawn and garden equipment aimed at the owners rural homes with large yards and private gardens. There were a wide variety of Cub Cadet branded and after-market attachments available; including mowers, blades, snow blowers, front loaders, plows, carts, etc. Cub Cadet advertising at that time harped on their thorough testing by "boys - acknowledged by many as the world's worst destructive force!". Cub Cadets became known for their dependability and rugged construction.

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