Simplicity ZT1644 zero turn one transmission faster than the other

[Chonko]

Hi. I'm new here so I hope I'm posting in the right area. I have a Simplicity ZT1644 zero turn. One hydro transmission turns quite a bit faster than the other causing it to veer to the right with both handles pushed forward. I know there are adjustments on the column to help slow one side or the other down (actually they just keep one handle from being pushed as far as the other) but I have the left knob cranked all the way out and the right knob all the way in to even up the speeds and go straight. Are there any other adjustments on the transmission itself to correct this? I have looked at the linkages and it doesn't appear to have any adjustments on them. I talked to a Simplicity mechanic and he said that one transmission might be starting to go bad. I am getting ready to try and sell this mower and I don't want to sell it if it is getting ready to die. Thanks for any help!!

 

[medic0648]

Not necissarily ready to die, just getting ready for a few motor or pump rebuilds. If it is a dual pump setup it could be the pump also.

 

[Chonko]

So no adjustments? How much is a rebuild? Is it wrong to sell it the way it is or will it last for a while before needing repair? It drives fine now, since I have used to the knobs to lower the speed of the one tranny.

 

[medic0648]

I'm not familiar with the specific equipment. But most of the hydraulic systems don't have an adjustment. Any filters that may be dirty? Also check any filters/screens to check for metal shavings?