Quote Originally Posted by Bob Collins View Post
Well, here we are deep into the thread and we've talked about everything BUT safety wiring worm clamps.
Worm clamps are not commonly safety wired.

Quote Originally Posted by Bob Collins View Post
The reason I'm asking is I'm installing a Reiff preheating system and the instructions state that the worm clamps holding the cylinder bands should be safety wired because they will work loose and break.

The system costs about $500 so I'd kind of like them not to do that.
If so why not ask them? I have seen a few Reiff systems installed on planes & I do not remember seeing safety wires. Maybe they have recently started recommending this, in which case they probably have a recommendation on the proper procedure.