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THREADLOCKING<br />
MOUNTINGBOLTS<br />
AGAINSTLOOSENING<br />
SITUATION<br />
Aminingoperationwasfacingrepeatedlooseningandbreakingofjaw<br />
crushermountingboltduetoheavyvibrations.Thebolt,postloosening,got<br />
sheared.Thiscausedthecrusherframetopoundagainsttheconcrete<br />
footing,damagingboththeframeandthefooting.Additionaly,thepotential<br />
colapseofjaw crusherpresentedaseveresafetyissue.<br />
CONVENTIONALMETHODUSED<br />
SPLITSPRINGWASHERS<br />
REASONFORFAILURE<br />
Splitspringwashersdonotsolvetherootcauseofvibrationallooseningwhichisthegap<br />
betweenthenutandthebolt.Thisgapalowssidetosidemovementwhenthecrusheris<br />
subjectedtoshockandvibrations.<br />
LOCTITESOLUTION<br />
LOCTITE<strong>277</strong><br />
LOCTITE<strong>277</strong>Threadlockerwasusedtofixtheisue.The<br />
productaddresedtherootcauseofthelooseningwhichis<br />
thegapbyfilingitcompletelyandsolidifyingintoahard<br />
thermosetplasticthatstrengthenthe<strong>anchor</strong><strong>bolts</strong>.<br />
RESULTS<br />
Preventsfastenerlooseningfrom<br />
extremeshockandvibration<br />
Stopssubsequentconcrete<br />
footingdamage<br />
Preventscatastrophicequipment<br />
failuresandrestoresasafework<br />
environment
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