Mark Lamb wrote:In response to the question: "Out of curiosity, have there been many instances of the nuts/bolts working loose and the bolts dropping out? Or is there a regular maintenance schedule that is followed to minimise this happening?"
From my time as a Linesman (now Mtce Tech, I suppose) odd ones used to work loose from time to time. There was a schedule, but it very helpfully (!) required us to check all bolts and nuts for security every visit, which was usually once a month. Of course this was virtually impossible to physically do, especially on a mechanical district with acres of rodding!
The trick was to ensure all nuts were squared off parallel to the rodding on installation. That way you could see if one was turning by not being square.
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