I had to open my Yaesu G 2800 rotor. It came down when my HyGain Xmas Tree
came down with a tower that folded in the middle, swinging the top down like a
hinge. The rotor obviously had some concussion but nothing hit it directly and
it was protected inside the intact upper tower section and TWO thrust bearing
above it. Thus, I had hopes it was ok. However the wind that blew over the
tower also had rain in it and the rain filled the rotor housing full of
water... because the rotor was upside down and it is not at all water tight
when upside down. When I got it out of the mess, water poured out of it.
However, I mistakenly did not open it immediately, get all the water out and
then dry it with a hair dryer or heat gun. Instead it sat in a dry room for
five months. I suspected it would be ok by then, based on my several
disassemblies of T2X rotors and seeing that the HyGains would dry out by
themselves after draining from the bottom. Not true. My Yaesu sustained rust on
a drive sprocket wheel and damage inside the potentiometer which meant that
some twenty turns of it wore it out or broke it.Thus the sprocketed metal wheel
could be cleaned with mind abrasion, and the potentiometer could be replaced.
There is a district in Bangkok that is likely even bigger than Radio Row in NYC
at its peak. An exact replacement potentiometer was found there in one of
hundreds of small shops stocking every kind of potentiometer one can imagine. I
now know how to take this Yaesu apart, but not totally, and can advise anyone
who is going to do same. GL on keeping the ball bearings, I say grinning. 73,
Charles Harpole
k4vud@hotmail.com
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