Read and Think Critically

摘要

BELTS LITERALLY were Hying off a belt press. The plant engineer had replaced the belt every 3-4 weeks since the press was installed. I'd listed 10 ft/ min as the maximum belt speed. However, he ran at a higher speed because, he insisted, the operating manual allowed it. He cited the assembly chapter in the manual: 5.5 m/min, i.e., -18 ft/min. My information came from the process operation section.