T750 loader valve

[astromusic85]

I have a T750 that just had one of the drive motors replaced and now the lift has no power unless I dead head the bucket at the same time also if I curl the bucket back and dead head it while lowering the arms the whole loader locks up could really use some help

 

[fortworth-cowboy]

I have a T750 that just had one of the drive motors replaced and now the lift has no power unless I dead head the bucket at the same time also if I curl the bucket back and dead head it while lowering the arms the whole loader locks up could really use some help

Are you able to test your pump? Do you have gauges for Hydraulic ?
Why was the Drive Motor replaced? Is it surer that this Drive Motor was bad? How was that determined?

 

[astromusic85]

I have verified my pump pressure is correct. The drive motor failed internally at the brake housing and I visually verified that as well

 

[fortworth-cowboy]

I have verified my pump pressure is correct. The drive motor failed internally at the brake housing and I visually verified that as well

SP by these Drive Motors is the Problem, that they can mask an issue. You think you pinpoint the issue but it might as well the other side.
IF the Break section internally bypasses hydraulic oil through the break section into the case drain, you will loose the pressure to unlock the breaks and your machine will lock up.
How did you verified the pump pressure? Which Pump? Where measured? What was the pressure?