[TowerTalk] ROTOR REPAIR

[Dan Arney]

It makes much more sense to have it gone thru by an expert for no more
than it cost. I t will then stay up another 18 or so years. Have a couple
of the mods done and it is far better than new.
Take it down, have it fixed put it up and do DX till 2020.
Hank KN6DI
Its cheap at half the price.



T A RUSSELL wrote:

> The HAM  series rotors are very simple devices,
> easily repaired by anyone who can use a screwdriver.
> Replacement parts are readily available from HyGain
> and possibly the usual repair places.
>
> The problem you describe could be dirt on the wirewound
> potentiometer and/or wiper arm, or the ground connection
> between the copper "grabber" and the aluminum housing.
> Clean all the contact areas and bend the copper to provide
> a little more tension.  Be sure to note the alignment of the
> housings BEFORE you separate them.  Also note the
> position of the copper "gripper" that rotates the wiper of
> the potentiometer.
>
> While you have the rotor down, consider replacing the
> connector with a plug in unit, or at least replace the
> rusty screws with stainless steel screws available
> from hardware stores or fastener supply houses.
>
> A low wide plastic tub is a useful aid in preventing
> ball bearings from escaping when you remove them
> from the  channel.  Mineral spirits will clean the old grease
> off.  Use a good all temperature grease in the channel and
> on the gears if you decide to regrease them as well.
> Be sure to only use a small amount of grease (the manual
> says a thimble full will do a complete rotor).
>
> A post in the ground or in a vice helps position the rotor
> while you work on it.
>
> de  Tom  N4KG
>
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