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TIL a lot of guys are over-torquing the bolts on MCE door operators
I was doing a call in a Denver office building and found a sheared bolt on a 3000 series operator. The foreman said his crew always cranks them to 90 ft-lbs, but the spec sheet clearly says 65. That extra force fatigues the metal way faster. Anyone else run into this on newer installs?
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alice_palmer201mo ago
It's the same with people who overtighten jar lids.
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troyreed1mo ago
It's the same mindset that strips every bolt and screw in a house. People think tighter is always better, but specs exist for a reason. That extra torque puts stress where it wasn't meant to be. You see it with everything from car lug nuts to furniture assembly. It's a lack of trust in the engineering that ends up breaking things faster.
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murphy.blair24d ago
Feel you on this one. My brother in law is a mechanic and he's constantly fixing stuff that people stripped because they thought "tight" was good enough. I had a buddy who snapped a bolt right off in his truck's engine block because he just kept cranking on it with a breaker bar. Those torque specs are there for a reason, they're not just suggestions. Same thing happens with cheap furniture from those flat pack boxes people buy. They crank down on the little cam locks and everything cracks. It's like people think if some torque is good, more torque must be better, but they're dead wrong.
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