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  #11  
Old 07-13-2024, 07:03 PM
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ol'George ol'George is offline
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If you look at the charge pump, it is secured with 2 bolts.
Where the bolts go through the charge pump, one of the "ears" has a flat milled on it.
That flat should be on the right side when sitting on the machine.
in other words your right ankle.
Those Sundstrand hydro units were used in many NON cub applications so they can be swapped to either drive forward or reverse depending on how the charge pump is installed, because different engines drive off the flywheel end or the PTO end of the crankshaft.
You can do a search on this site and actually see pictures of this topic discussed in the past.
Do as you please.
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  #12  
Old 07-14-2024, 07:03 AM
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It's explained in the 149 Service Manual, page 2-44.
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  #13  
Old 07-14-2024, 09:25 AM
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Did you ever have the pump apart?
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  #14  
Old 07-14-2024, 10:42 AM
Ambush Ambush is offline
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If the tractor has forward and reverse, then the charge pump is oriented correctly. If you put it backwards, you have no movement.

It may be possible to put the motor side swash plate backwards, but I don't think so. And that would only be if someone had the unit apart before the OP got it.

It sounds like a linkage problem. The shift shaft turned 180 maybe so the tab is pulling the linkage when you push the lever?
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  #15  
Old 07-15-2024, 09:50 AM
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The flat on the charge pump should be on the right side as you sit on the tractor.
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  #16  
Old 07-15-2024, 12:19 PM
Grandpa53 Grandpa53 is offline
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You will need to swap cam pivot bracket and speed control cam from 149 hydro to new hydro. Those two parts are different between the 1x9 and 82 series units. Good luck.
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  #17  
Old 07-18-2024, 01:40 PM
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Quote:
Originally Posted by darkminion_17 View Post
Did you ever have the pump apart?
I have not.
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  #18  
Old 07-18-2024, 03:11 PM
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Have you checked the linkages for proper function compared to what you took out?
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  #19  
Old 07-18-2024, 06:35 PM
302wSBF 302wSBF is offline
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Quote:
Originally Posted by Grandpa53 View Post
You will need to swap cam pivot bracket and speed control cam from 149 hydro to new hydro. Those two parts are different between the 1x9 and 82 series units. Good luck.
I think this is the issue.

The "flat" is on the right, so the charge pump hasn't been messed with.

I'm going to try to swap my cam pivot bracket and speed control cam. I *might* be able to swap it with the pump in place. I'll be pretty happy if I don't need to pull the fenders too!

I hope someone finds this thread useful at some point!
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  #20  
Old 07-23-2024, 08:40 PM
302wSBF 302wSBF is offline
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I can confirm that the speed control cam was the issue.

The cam pivot bracket appears that it will work, but I didn't mess with it.

Lots of people are swapping pumps from 2000 series tractors and such but I seem to be in the minority for running into suction pump issues. Odd.
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