Steve Sampson
Well Known Member
Did TT ever come out with a statement as to their view or a fix?
Did TT ever come out with a statement as to their view or a fix?
It is a bit scary though, just the screw with some lock-tite (if there is any!) and nothing else that one can actually see, holding that screw in.
That's all that holds your baffling together or your valve covers on.....a bunch of blind screws. ......
That's all that holds your baffling together or your valve covers on.....a bunch of blind screws. Let's wait to see what TT has to say. I'm not saying there isn't a problem to be addressed but there are thousands of units flying. In the mean time, a little Locktite and the proper torque will probably be all that's needed.
BTW, if you check the torque on the screw and you move the screw from where it was, you quite possibly broke the Locktite bond and you may actually ASSIST the screw in vibrating out. If you check the screw, remove it all the way and re-apply Locktite before re-installing.
This is exactly the message I have been providing to all the phone calls I have received. If you "check" the screw, you need to remove it and reapply the thread locker, because you just broke the bond. We have a solution in the works, it's just not available quite yet. It will be easy to retrofit any existing servo and all new servos will implement it. We will also offer it free of charge to anyone who wants to retrofit their servos. Once we have the parts on hand, I will make a separate post. Thanks for you patience!
Lucas,
is there a preferred loctite grade that should be used? How tight must the screw be?
The screw which holds the arm on a TruTrak autopilot servo is a #8 panhead stainless 1/4 inch long, with a nylon washer between the screw head and the servo arm.
Pat
Lucas told me today to use a medium grade locktite, blue is what I used. Just torque the screw to specs for a #8.
I checked mine today and it was kinda loose. I removed the screw, cleaned it up, oiled the rod end bearings, and reinstalled and retorqued the screw. I'm sure I'm gonna need 4-6 hours of flight testing to make sure it is good.
Thanks for the info, but isnt blue the light duty ,easily removable loctite?
Is this a good idea guys? Having a nylon washer in a place where a good torque setting is needed? The nylon washer would deform after awhile and be more susceptible to heat. Would a metal washer be a better choice?