I'm rolling on the floor now, too! I could see someone actually thinking
all you would have to do to maintain a crankup is grease the sections where
they slide against each other . . . can't you? I really bit on that one. :-)
Stan W7NI@teleport.com
>Stan, chuck is rolling on the floor by now. Read carefully, I don't
>think Chuck was talking about a crankup, but regular Rohn 65G that we
>use down here in Texas.... 73 Robert
>
>
>>
>> >A tower really does not need that much maintainence except, of course, to
>> >take it down every 2-3 years to grease the joints between the sections...
>>
>> I'd say it depends a lot on how much you crank it up and down. Some people
>> use motorized crankups so they can keep it down most of the time to avoid
>> offending neighbors and protect it from the wind. If you do this a lot, you
>> need to keep the cable well greased to avoid wear on the pulleys as well as
>> keeping the pulley shafts well greased.
>>
>> One guy I know didn't bother with the grease and the cable wore the edges
>> off the pulleys. The cable dropped down on the pulley shaft and jammed
>> tight. The motor snapped the cable and the whole crankup telescoped down
>> REAL FAST. The tower was permanently damaged and one element bent due to
>> the sudden stop at the bottom. Nobody was hurt. Lucky. I hate crankups.
>>
>> BTW, the reason the motor snapped the cable instead of just stalling and
>> blowing a breaker like it should, is because the owner installed an extra
>> large motor because he ran it up and down a lot and it was too slow with the
>> orignal motor . . .
>>
>> Stan W7NI@teleport.com
>>
>
>--
>73 Robert WB5CRG w5robert@blkbox.com
>
>
|