[TowerTalk] US Tower seized gearbox

[K7LXC at aol.com]

>>  The Hub City W300 gearbox on my US Tower 85 ft  rotating  mast appears 
to have seized after 12 years. 

>   Are you sure you don't have a bad bearing in a pulley (sheave)?
 
    The UST pulleys all use sealed bearings and they  have been pretty 
reliable in my experience. Also the pulleys are also mostly  hidden so it's not 
easy to ascertain whether they're turning or not. 
 
Cheers,
Steve      K7LXC
TOWER TECH