Saw these on a bus today, what are they? Edit: Thanks Oppo!

Kinja'd!!! "E. Julius" (soonerfrommi)
12/29/2014 at 13:05 • Filed to: None

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Little bright green pieces of plastic on the wheel/lugs. Anybody know what purpose they serve?

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DISCUSSION (7)


Kinja'd!!! Snuze: Needs another Swede > E. Julius
12/29/2014 at 13:08

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Looks like they are anti-rotation tabs. So if the nuts start to vibrate loose, they can only turn maybe half a turn max before they hit one of the inner bolts and stop.


Kinja'd!!! Svart Smart, traded in his Smart > E. Julius
12/29/2014 at 13:09

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I think they're there to make it obvious when one of the lug nuts gets loose. If the arrow isn't pointing in the right direction, then the nut may have rotated (loosened) out of position.


Kinja'd!!! 505Turbeaux > E. Julius
12/29/2014 at 13:14

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these are loose wheel nut indicators, if it isnt pointed at the center line of the next nut in line, it is looser than when torqued

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Kinja'd!!! thebigbossyboss > E. Julius
12/29/2014 at 13:29

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Those help truck drivers see "at a glance" whether their lug nuts have loosened or not, if they are pointing different directions then the lugs need tightening as in your picture.


Kinja'd!!! McMike > 505Turbeaux
12/29/2014 at 13:36

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I'm always tempted to replace one in the "loose" position whenever I come across a parked bus.


Kinja'd!!! SOCdriver > E. Julius
12/29/2014 at 13:50

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Loose nut indicators, my dad is a Maintenance Super for a transit authority, they use these on all their vehicles. Every time I see one off I want to get them back to spec, even though I know that throughout the week they will torque off just a little and still be fine. If you see more than one that has moved 90 degrees off spec let the driver know.


Kinja'd!!! Takuro Spirit > SOCdriver
12/29/2014 at 16:45

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I remember when they first started appearing on EVERY truck and bus around here.... there was a rash of loose wheels causing accidents and some deaths, and then all of a sudden..... bright green thingies on lugnuts everywhere.