[TowerTalk] Safely Unscrewing Cap Screws on the TX-472 Hub City Worm Gear Box

[Fred Hurd <fred.hurd@cox.net>]

Please some good advise for safely unwinding (and rewinding/tightening) the cap 
screws on the TX-472 US Tower Hub City Gear Box in order to drain and refill 
the oil lubricant. The Cap Screws on my unit are heavy painted, so I will need 
a safe procedure for loosening the screw without causing damage. Advise from 
someone who has replaced the oil in their unit would be greatly appreciated.

Fritz (W4PKU)
Herndon, VA
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