(Jordan V., Travis S., Richard M., Filiberto C., Dave B., Patrick T., Jonathan H., Brandon P.(RMC), Gerardo M.)

(Work done on 5/21/2026)
The new purge air compressor, Kobelco KN-0, developed a very small oil leak (again).  A few weeks ago oil started oozing out of some of the oil line connections, about 3 different spots.  See photos.  Technician Brandon Pimentel showed up Thursday morning, and not only did he found the above mentioned slow leaks, but he discovered that the oil pump was also leaking (again), the seal at the drive shaft is not sealing.  That was the diagnosis, see report below.
Brandon turned the compressor off, then proceeded to fix leaks.  The oil pump will get replace later, he has order a new pump and should be here in the next couple of weeks.  The compressor was turned back on, it started working without a problem, "BUT" the HMI (control panel) did not returned!  After several tries at restarting the unit, Brandon and Field Engineering called HMI dead, and it needs to be replaced.  The HMI unit should be here within a week.

Meanwhile we were flying blind, the compressor is doing its job and compressing air and working with its regular schedule, but due to the oil leak on the oil pump, we've decided to attach a thermocouple to the compressor to keep an eye on the oil temperature, same location as the oil temperature sensor the HMI unit uses, then thanks to many people we now have a CDS signal for the oil temperature, see Dave's entry.
We let the unit run until the dew point at the drying towers was acceptable, then we released the purge air into the LVEA, we let the purge air run on the lines inside the LVEA for another hour, then we took a dew point measurement at the point of use, we read -43.7 ^oC.  Then we allowed the air into chamber and purged the chambers for 1 hour before allowing in-chamber work to resume.

Below is Brandon's report:                                

1/4IN OF OIL IN CABINET CUBICLE BELOW OIL PUMP. CLEANED UP OIL RESIDUE FROM ALL COMPONENTS.
REPLACED ORING ON OIL PUMP INLET LENS FITTING. TIGHTENED LENS FITTING BUSHINGS.
TEST RAN UNIT LOADED FOR 1 HOUR INSPECTED OIL PUMP HOUSING FOR EVIDENCE OF SHAFT LEAK AND COUPLING WEAR. FOUND 1/4 OF OIL INSIDE HOUSING AND RESIDUE ON SHAFT. NEED TO REPLACE OIL PUMP.
HMI IS BLACK-SCREENED AND UNRESPONSIVE. PER FIELD ENGINEERING, NEED TO REPLACE. UNIT IS OPERATIONAL.