There was some pressure excursions that may impact platform position/performance from 1608 to 1638utc on 10 March 2015.

Fluctuations of +- a few PSI were experienced--See Attached 30 minute trends of Pressure and Motor control drive.  Usually, with the servo in Auto control, a pump station can be ramped down over 300 seconds and the servo would keep the pressure up by speeding up all the other Pump Stations.  However, with the 10mhz controller parameters, it was not keeping it at set point and the controller was switched to manual and dealt with by hand.  We usually always have a glitch right at the end of the ramp down or ramp up in Pump Station output as we close/open the valve (keeping the pump from rotating backwards.)  We will examine why the pump stations could not keep these at Set point--Since this ramp down is just a abruptly starting linear ramp in motor speed, the frequency (at the start at least) was likely too fast for the servo.  Not too much harm anyway, no HEPI Platforms tripped at least.

Maintenance Performed: Pump Stations 5 & 6 (Check medm or Pump Station label) had motor grease added (2 tsp=5 gun pumps) in each of two bearings.  Accumulator pressures checked, #1 on PS was very low.  All others near nominal (60-90% of operating fluid pressure, set with no fluid pressure.)