⚙️💡✅❓

#system status #functional check #operational status #machine working #technical check #is it running

⚙️🏭💨

#industrial machine #factory machine #machine working #production line #heavy industry

⚙️▶️⚙️

#gears turning #machine working #start process #mechanical action

⚙️👍⏰

#system running #operational time #machine working #continuous operation #reliability #working hours