What changed after the brushes went down

“During the Hardware Maintenance Workshop we timed intake temps before lunch and again after the staged clean. The middle shelf dropped enough that we finally stopped arguing about whether dust mattered. I still wish we had practiced more on dual-connector fans—the last drill felt rushed.”

“Fan Replacement Clinic was the right length. We caught two fans spinning the wrong way on a borrowed frame—embarrassing, but cheaper than learning that at 2 a.m. on our own.”

“Jae-woo’s thermal assessment photos showed recirculation we had walked past for months. Paste intervals are on a calendar now. The visit fee hurt a bit for a small room, yet the annotated map is what our landlord finally understood.”

“Private group day let our three site leads argue through the same checklist. Cleaning is slower now, and that is the point—we stop when isopropyl pools instead of rushing the shift.”