[TowerTalk] Sick Tailtwister

[Bernard(wtrone)]

    Unfortunately, I can't hear the rotor from the ground.  It is about 70 
ft in the air.

            73s


            Bernard, WA4OEJ


----- Original Message ----- 
From: "NØATH" <N0ATH at Charter.net>
To: "Bernard(wtrone)" <wtrone at comcast.net>; <towertalk at contesting.com>
Sent: Sunday, October 16, 2005 6:01 PM
Subject: Re: [TowerTalk] Sick Tailtwister


Barry, while the brake is released, can you detect any hum from the motor 
indicating it is trying to turn? If yes, then you probably have a brake 
problem.
All there is are the 4 springs and the pin that could be wrong. ( I think ) 
otherwise I would check my wiring - two or three times very carefully. The 
motors are normally fairly resistant to failure. G,luk / Dave / NØATH


From: "Bernard(wtrone)" <wtrone at comcast.net>
To: <towertalk at contesting.com>
Sent: Sunday, October 16, 2005 2:26 PM
Subject: [TowerTalk] Sick Tailtwister


    I have a sick tailtwister.  It won't rotate either CW or CCW.  I checked 
the fuses, OK.  I measured the voltage at the control unit with the cable 
disconnected as per the manual, Voltages=OK.  I measured the pin to pin 
resistances as per the manual, resistances= OK.  I tried a new motor start 
capacitor, Nothing/ No Rotation.  I can hear the solenoid click when I 
depress the brake switch.  With cable attached, brake button pushed and CW 
pushed, I read about 18.4 VAC on the two terminals.  About the same voltage 
on the other two terminals with the bake button pushed and the CCW button 
pushed.

    I'm beginning to wonder if the brake mechanism might be broken.  But, 
before I take the tower down (it is a fold over), I would like to be sure 
that I have checked everything that I can from the ground.

    Any ideas?

        73s

        Bernard, WA4OEJ
_______________________________________________