GregG & Hugh

We put the eight HEPI actuators of HAM2 in bleed mode and opened the 4-way valves and then ramped the fluid pressure back up to max.  We did this 4 times to be cautious about fluid leaks--we did this at each pier and carefully checked for leaks before ramping the pressure back down and opening the valves at the next pier.  The introduction of additional resistance has us at 28psi now with the motors running about 92% and the servo on.  We will continue these steps at WHAM3 and possibly HAM1 and/or BSC1 over the next few days.  Additional chambers will allow us to get higher pressure and so more nominal performance.
While the HEPI is locked, we did see some readout change on the IPS.  The signs are all the same and the largest is about 300 counts or ~0.0005".  I suspect this is mechanical distortion of the Actuator itself with the pressure introduction.  Since the IPS is all attached to the actuator both the Flag (unsuspended) and Sensors (suspended), I don't think this can be checked independently.  I would venture that the Platform has not actually moved.  After a couple days of bleeding, we'll switch the Actuators to run mode.  This will likely change the pressure/IPS state again so hold on!  We'll likely want to have enough Actuators on line so that we can servo the pressure at nominal level(80psi, 70diff) so the introduction of additional actuators will not change the actuator distortion/IPS 'zero'.