By all means use loctite if you think you need it. Though keep in mind loctite melts plastic so when its used with a locknut/nylock you could be melting the nylon insert that does the "locking".
Locknuts are also technically a 1 time use item. If its already loosening its probably worth tracking down some new locknuts to be safe.
It does sound like _hsb _ is onto something, make sure yours its fully seated before you tighten it. Looks like his has 3-4 exposed threads so if his is fully seated you should be able to compare that against yours.
Locknuts are also technically a 1 time use item. If its already loosening its probably worth tracking down some new locknuts to be safe.
It does sound like _hsb _ is onto something, make sure yours its fully seated before you tighten it. Looks like his has 3-4 exposed threads so if his is fully seated you should be able to compare that against yours.