[TowerTalk] M2 rotor question

[William Tibbals]

Gregg. 

first you must loosen the mast clamps  and lift the Mast upwards so you can gain access to the bolt.  It is located dead center on the top plate of the rotor/  did you use the pyramid device M2 provides?

It is a very common problem which occurs most likely due to the mast not being centered exactly and the clamp M2 provides will eventually allow the mast to slip in the clamp.  The mast pipe centers directly over the 1/4" bolt and as the mast slips it may cause the bolt to become loose.  

M2 is aware of this issue a few years ago and they provided me a replacement clamp.  that clamp failed as well which is why I purchased K7LXC's clamp.

I also used a small amount of "Red" thread lock this last time. 

I have had this problem many times since 2001 and always a problem until the new mast clamp was installed.  Now, knock on wood, it has worked flawlessly

I will look for pictures of the problem and send them along tomorrow.  as they say a pic is worth a thousand words.

Bill, K4XT
Tel: 540 338 2589

--- On Tue, 1/19/10, Gregg Seidl <k9kl at centurytel.net> wrote:

From: Gregg Seidl <k9kl at centurytel.net>
Subject: Re: [TowerTalk] M2 rotor question
To: "Tower and HF antenna construction topics." <towertalk at contesting.com>
Date: Tuesday, January 19, 2010, 6:25 PM

Do you know how to get the bolt back up?

  Gregg
----- Original Message ----- 
From: "William Tibbals" <tibbalsw at yahoo.com>
To: "Tower and HF antenna construction topics." <towertalk at contesting.com>
Sent: Monday, January 18, 2010 6:48 PM
Subject: Re: [TowerTalk] M2 rotor question


> Gregg.
>
> It is not uncommon for the 1/4" bolt on top of the rotor to become loose. 
> since this bolt suspends the main drive gear that gear starts to drop. it 
> will slowly move against the Limit Switches thus they engage and disengage 
> erratically. quite common problem with mine, I did replace the top clamp 
> with one from K7LXC andhave had no issues since
>
> Bill, K4XT
>
> --- On Sun, 1/17/10, Gregg Seidl <k9kl at centurytel.net> wrote:
>
> From: Gregg Seidl <k9kl at centurytel.net>
> Subject: [TowerTalk] M2 rotor question
> To: TowerTalk at contesting.com
> Date: Sunday, January 17, 2010, 3:47 PM
>
> I have a DC M2 Orion rotor that is giving me some trouble. It will only 
> turn from 108 to 360 degrees plus a little back thru about 13 degrees. I 
> feel like it is against a control box limit. How can you clear it?
>
> Gregg K9KL
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