[TowerTalk] Lift Mast to Replace Rotator

[K9MA]

You really don't want to do that without bracing the mast with something 
like the braces Tim suggested. Years ago, I made something similar out 
of steel angle stock and U-bolts.

BTW, although the DXE page shows two braces in one photo, it appears 
they are sold individually. While one might prevent rotation, at least 
two would be required to prevent the mast from tilting and stressing the 
thrust bearing, unless you stabilize the mast with ropes, or something 
else. I suppose, if there's only one beam on the mast, you could slide 
it down to right on top of the thrust bearing before removing the rotator.

73,
Scott K9MA

On 12/26/2019 16:31, Charles Gallo wrote:
> Put a clamp around the mast, tight against the thrust bearing to hold the weight, pull the rotor. If you need more clearance to slip the new rotor in, put a bottle or scissor jack under the mast at that point, lift, loosen the clamp, slide it down, reclamp, remove jack.
>
> --
> 73 de KG2V
> Charlie
>
>> On Dec 26, 2019, at 5:03 PM, John Sloop <hawkeye78299 at gmail.com> wrote:
>>
>> I'm looking for suggestions to lift mast, with antennas just enough to
>> replace the rotator, which is a Ham III.  Rotator is shelf mounted about 2
>> feet below the top thrust bearing.  All ideas are appreciated.
>>
>>
>>
>> John S.
>>
>> AA0ES
>>
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-- 
Scott  K9MA

k9ma at sdellington.us