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Rant: My stubborn habit of not checking the governor rope tension first cost me a whole morning
I was chasing a weird intermittent door fault on a 15 year old Schindler for two hours, pulling my hair out. The old guy I was training with just reached over, gave the governor rope a firm tug, and said 'Kid, you're looking for a ghost in the machine.' The slack was obvious once he pointed it out. Anyone else have a simple step they used to skip that always comes back to bite them?
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sams256mo ago
You said the Miprom door zone. That's not quite right. The Miprom is the controller. The door zone is part of the hallway, the door and its track. The problem is with the door gear, not the Miprom brain box. Calling it that can send a new guy to the wrong spot to start looking.
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nelson.gavin6mo ago
That "ghost in the machine" line hits home... I used to skip checking the door zone clearances on the old Dover Miproms. Would spend an hour on a call back for a door reopening, only to find a worn roller bracket letting the door drift just a quarter inch out of zone. Now it's the first thing I look at before I even open my tool bag.
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richard_ramirez6mo ago
The Miprom door zone is a classic. I saw one last month where a bent sill plate, maybe an eighth of an inch out, caused a week of nuisance calls. You start chasing limit switches when the problem is just the door hanging up on the way out.
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