[TowerTalk] US Tower gearbox

[John Holmes]

I was reading with interest the explanations of the lube needed for US
Towers. My TX455 has been up for five years now and, while I have lubed the
grease fittings regularly, I've never changed the oil. I want to do this now
using SHC630 as K6UJ noted. However, before I order this, how much would you
recommend I order? Would 2 quarts be enough to both flush the gear assemble
and refill it? I'd hate to have too little on hand after draining.
Thanks for your help.
73,

John W9ILY