[SML] ETC Safety cable loop

[June Abernathy]

> On May 19, 2016, at 2:00 PM, Dale Farmer wrote (in reference to the side yoke bolts on a S4):
> 
> I have seen them stripped out.  All it takes is someone with a nice big 
> wrench to overtighten the bolts until the threads in the aluminum get 
> stripped.   Often this is an overenthusiastic newbie or someone 
> transitioning from older style lights who doesn't realize that you 
> tighten the hand crank on the yoke, not the bolts on the end of the yoke 
> to keep the thing pointing where you want it.

> Dale

On a Source 4, the holes on the yoke actually fit over a protrusion on the body, and the bolt and washer go on top of that. So stripping out or even losing the bolt - even on both sides - would not automatically make it fall from the sky. To remove the fixture from the yoke takes some twisting or prying. It's not impossible, but it's not easy, either. 

I'm comfortable with just safetying the yoke. OTOH, the lights in my rig are well maintained, touched on a regular basis, and in the hands of professionals. If people in other situations are more comfortable with a safety to the body of the lamp, that's great. I don't think either method can really be classified as universally right or wrong. 

June Abernathy
IATSE #321 (Tampa, FL)
FOH Electrician
The Lion King National Tour