Reports until 16:06, Monday 27 July 2026
H1 SUS (SQZ)
rahul.kumar@LIGO.ORG - posted 16:06, Monday 27 July 2026 (91264)
HAM7 update - ZM5 (PSAMS) pulled out of the chamber for repair, once again.

Ryan C, Rahul

In preparation for our second replacement of the PSAMS, we have taken SUS ZM5 out of HAM7 chamber and staged it on the table next to it. We took the bottom stage PSAMS out of the suspension cage - this unit has wires shorting inside the mirror housing.

Tomorrow morning we will start replacing it with the unit CIT has shipped us - which was originally installed in ZM5 (LHO) but broke down two weeks ago (Strain Gauge wire leads got loose inside), then got fixed at CIT and re-shipped to us with 65 in-lb torque.