Hi guys - Installed rebuilt pump. Will not move. I don't think that the oil is going all the way to the rears. Their is a small leak on the left rear but after we cleaned it up and reinstalled pump- no leak- dry. Their is oil to the pump (had a few small leaks after install of fluid). It does not even try, like their is a electricial issue not letting the machings oil move. The blade moves but slows at times and hyd. cooling fan at rear of dozer goes on HI and LOW at different times. I have fixed two of these HST pumps and they seem to have a problum with the plastic rack that holds the bearings by the swash plate break and put the machines into a hard left or hard right track movement. My point is that even though the swash was jammed to one side all functions worked good before install of rebuilt HST pump. There were no issue with blade, fan or getting any power to the tracks. Has onboard computer with no codes. Any help would be appreciated.
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