[TowerTalk] Rotor replacement
kb9cry at comcast.net
kb9cry at comcast.net
Mon Dec 1 19:39:15 EST 2003
Using a gin pole to support the weight of this assembly might be pushing it's limits but I must strongly remind everyone that using the keeper bolt in the pointed top section to hold the assembly is pretty useless and may give a false sense of security. It won't hold against any kind a weight; support the assembly with the gin pole as described and/or with a clamp on the mast above the thrust bearing. Another problem one may have is if the mast is resting firmly on the rotator housing. With that weight you may never be able to removed the rotator or re-install the new one unless the assembly is able to be raised up a bit. The gin pole will work, or maybe use a scissors jack on the top plate up to the first antenna's boom to mast plate or attach a clamp on the mast way below the top plate and a snatch bloc on the below the top plate and run a come-along up through the block down to the clamp and winch the assembly up with that. Be careful and think things through before going up. Phil KB9CRY
> I dont know if you have access to one, but what I do
> is raise the antenna system up with a gin pole, tie
> the rope off and remove the rotator. Also, if I
> recall correctly, it your using the top section for
> the rohn 45, there should be a keeper bolt in the tube
> the mast slides in, raise the system up amd tighten
> that, as long as your not going to have it off for
> long, that should work ok. But, the safest bet in my
> mind is the gin pole...
>
> 73 Jim AD6IJ
>
>
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