[TowerTalk] Rotor faialure

[Mike Reublin NF4L]

Thanks, David -

I'm leaning toward a gut shot. Everything on the exterior looks good. I have a new-in-the-box twin, jut pondering whether to use that or got for the 2800. The 1000 was up for maybe 10-12 years before it failed.

73, Mike NF4L


> On Jul 21, 2015, at 2:49 PM, David Robbins <k1ttt at verizon.net> wrote:
> 
> no continuity on any of the wires... possible causes: broken cable, broken connector, guts of rotor wiped out including pot and motor.
> 
> antenna freewheeling... possible causes: guts of rotor wiped out, broken mounting bolts
> 
> broken mounting bolts+freewheeling = broken cable or connector when it tries to stop the freewheeling... can you see if the bottom of the rotor housing itself is 
> turning with the antenna?  if that is turning the mounting bolts are gone but maybe the rotor itself is ok, if the base is still attached to the mounting plate and 
> the top is turning its probably time for a new rotor.
> 
> 
> Jul 21, 2015 10:26:43 AM, nf4l at comcast.net wrote:
> 
> The other day, I turned on my G-1000DXA and got no response. The box says 180 degrees, and the antenna is pointed north. 
> 
> I read open on the wiper and pot wires, and on the motor pair. Applying 12v to the motor wires did nothing.
> 
> I finally noticed the antennae were freewheeling in the wind. I lowered the tower and see no external signs of failure. Any speculation on what has failed and why? I'm wondering if the mast is centered. When the tower is horizontal, how does one tell?
> 
> The antennas are a 4L Steppir w/30/40 and a 7L 6M beam. The vertical load is taken by a bearing. The "pin" bolt appears to be intact.
> 
> 73, Mike NF4L
> 
> 
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