Jo Bolts and checking after installation
Jo Bolts and checking after installation
(OP)
On Jo Bolt (NAS1669 nominal)protruding head type I have installed iaw material thickness and selected appropriate grip in the various sizes I am using -3,-4,-5. The fasteners break off within limits and those that i can see have a good head form. Problem is they rotate. Now does anyone know of a torque ie -3@4"lb and-4@6"lb say that is in a Navair or TO. I am installing with PS870B2 and allowing to cure over 2 days and still rotate. Any legal advice appreciated.





RE: Jo Bolts and checking after installation
5/32 4 inlb, 2 inlb if installed wet with sealant
3/16 6 inlb
1/4 10 inlb
5/16 20 inlb
3/8 30 inlb
Make sure torque is applied counterclock wise, if not the fastener will loosen even more.
The manuafaturer also has specifications, they match all engineering specs I have seen on Visu-Loks
http://ww
RE: Jo Bolts and checking after installation
RE: Jo Bolts and checking after installation
Acc your post I,m sure the problem is hole size, not torque.
Holes should be checked with a plug- type GO/NOGO gauge to assure accuracy
diameter min max
-08 .164 .166
-3 .199 .201
-4 .260 .262
-5 .312 .314
-6 .375 .377
Regards.
deba