[TowerTalk] Failed Limit Switches on Crank-up Tower

[Frederick Toth]

Today I replaced the limit switches on my 72 foot motorized crank-up
tower from US Tower. The lower one failed first, fortunately.  (The
limit switches automatically turn the tower motor off when the tower
telescopes to its limits - up or down). When I opened up them up, I
found that they were very badly corroded   - to the extent of what you
might see if a battery had leaked inside them. I was surprised to see
the extent of corrosion because I have owned the tower for less than
three years.

Has anyone found a way to get a longer lifespan out of these switches?
They cost $130 each to replace.






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